Интегральные схемы

MC3303PG

MC3303PG - Quad 1 MHz Operational Amplifier | onsemi | 14-PDIP

The onsemi MC3303PG is a four-channel general-purpose operational amplifier designed for single-supply operation, with a 3 V to 36 V supply range, true differential inputs, internal frequency compensation, and short-circuit protection. The device is packaged in a 14-pin through-hole DIP and is intended for low-cost analog signal conditioning, instrumentation, and general-purpose amplifier applications. Its unity-gain bandwidth is 1 MHz, while the specified minimum common-mode rejection ratio is 70 dB and the listed input offset voltage is 10 mV. An operational amplifier is an analog building block that compares two input voltages and amplifies their difference. The quad MC3303PG contains four amplifier sections in one package, allowing a circuit to perform multiple amplification, buffering, summing, or comparison functions while reducing board area. MC3303PG belongs to the operational-amplifier hierarchy within analog ICs and integrated circuits, and its true differential input architecture supports accurate sensing of small signals referenced to either ground or another bias point. The principal features include four amplifier channels, a 1 MHz gain-bandwidth product, operation from a single positive supply, Class AB output stages, true differential inputs, and low input bias current. Internal frequency compensation removes the need for external compensation networks in unity-gain applications. These characteristics make the MC3303PG practical for general-purpose designs where simplicity, tolerance of a wide supply range, and moderate operating bandwidth are more important than rail-to-rail output swing or very low offset voltage. MC3303PG is electrically similar to the widely used MC1741C-family architecture but adds advantages for single-supply operation. True differential inputs allow the amplifier to operate without artificial ground bias around the input signal. The four-channel arrangement supports signal amplifiers, active filters, transducers, sensor interfaces, audio preamplification, and industrial control modules. A wide 3 V to 36 V operating range also permits operation from both compact low-voltage systems and higher industrial supply rails. Typical uses include low-frequency sensor conditioning, audio input stages, active-filter sections, comparator-style threshold circuits, and general instrumentation. Because the amplifier is not rail-to-rail, input and output common-mode limits must be respected in low-voltage designs. For battery-powered equipment, verify input bias current and supply-current requirements against the system power budget. The DIP package also requires adequate through-hole spacing and mechanical clearance from adjacent heat-producing components. When designing around MC3303PG, begin with the manufacturer pin-description and electrical-characteristics tables, especially for input common-mode range, output swing, supply current, and stability. Place bypass capacitors close to the supply pins and route feedback components to minimize parasitic capacitance. Avoid operating the output near either supply rail unless the selected output-load condition remains within the specified swing range. This product page consolidates the manufacturer product information, distributor identification, package details, and practical engineering guidance for the MC3303PG. It also distinguishes the verified 14-pin DIP replacement candidates from broader functional equivalents so that PCB-level drop-in decisions are made with package and parameter checks rather than by device category alone.

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MC3303PT

MC3303PT - Quad 1 MHz Low-Power Op Amp | STMicroelectronics

The STMicroelectronics MC3303PT is a four-circuit, low-power bipolar operational amplifier with a 1 MHz gain-bandwidth product, a maximum supply voltage of 36 V, and a 14-pin TSSOP package. It is designed for general-purpose instrumentation, buffer, and amplifier applications that require four amplifiers in one package. The integrated quad arrangement reduces component count and simplifies PCB layout compared with four individual single amplifiers. An operational amplifier is a voltage-amplifying semiconductor in the amplifier IC category. It compares an input voltage with a feedback-defined reference voltage and drives its output to reduce the difference between them. The MC3303PT belongs to the broader low-power operational-amplifier family and provides four internally compensated amplifiers with true differential inputs in one package. The MC3303PT supports single-supply operation up to 36 V and dual-supply operation up to ±18 V. Its maximum input-bias current is 500 nA, which helps limit the current required from high-impedance signal sources. The device also provides short-circuit-protected outputs, an internally compensated Class AB output stage, and electrical characteristics described as similar to the widely used UA741. Each amplifier channel is internally compensated, allowing operation as a closed-loop amplifier without external compensation components. The Class AB output stage is intended to provide low crossover distortion while avoiding the continuous conduction characteristic of a purely class A output stage. The quad package is useful when four channels can share the same supply rails and ground reference. Typical applications include low-frequency instrumentation amplifiers, signal buffers, active filters, transducer interfaces, sensor signal conditioning, and general analog signal-processing chains. The 1 MHz gain-bandwidth product is suitable for moderate-bandwidth closed-loop stages rather than high-speed video or RF amplification. For new designs, verify the input common-mode range, output swing, input-offset voltage, input-bias current, and output-current capability in the manufacturer datasheet against the actual signal range. Decoupling capacitors should be placed close to the supply pins, and each unused amplifier channel should be configured according to the manufacturer's recommended stable-input arrangement rather than left floating. This product page organizes the confirmed MC3303PT characteristics, package information, application guidance, and sourcing path into an engineering-focused reference. It also distinguishes verified device attributes from parameters that require confirmation from the complete manufacturer datasheet before layout, simulation, or production release.

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MC3303PW

MC3303PW - 30V 1MHz Quad Op Amp | Texas Instruments

The Texas Instruments MC3303PW is a quad, general-purpose operational amplifier with a 30 V maximum supply rating, 1 MHz gain-bandwidth product, and four amplifiers in a 14-pin TSSOP package. It operates from single or dual supplies across a 3 V to 36 V total supply range, making it suitable for industrial control, instrumentation, sensor conditioning, and audio signal-chain designs. An operational amplifier, or op amp, is an analog integrated circuit that amplifies the difference between two input voltages. The MC3303 belongs to the linear amplifier hierarchy, where four independent amplifiers share one package. Each channel combines a true differential input stage, a Class AB output stage, internal frequency compensation, and short-circuit protection. These features simplify circuit design because external compensation networks are not required for typical closed-loop amplifier configurations. The MC3303's principal operating characteristics include a 1 MHz gain-bandwidth product, support for supply voltages from 3 V to 36 V, and an operating temperature range from -40 °C to 85 °C. Its low-power design is intended for general-purpose analog systems where four amplifier channels, compact packaging, and flexible supply operation are more important than rail-to-rail input or output capability. Input common-mode and output swing limits must be checked against the actual supply voltage before the circuit is finalized. The true differential input stage supports common-mode input operation while reducing output offset resulting from common input signals. A Class AB output stage supports bidirectional output current without the crossover distortion associated with complementary Class B stages. Internal frequency compensation makes the device convenient for unity-gain voltage followers, amplifiers, comparators, and basic active-filter blocks, although the stable operating range and output-drive requirements depend on the selected closed-loop gain. Typical uses include four-channel sensor amplification, industrial transducer interfaces, low-frequency audio mixing, buffered instrumentation, active filtering, and general voltage amplification. The 14-pin TSSOP package reduces board area compared with a larger through-hole package, while its exposed thermal behavior and power dissipation should be considered when all four channels operate continuously at high output voltage and current. For stable operation, place input and feedback components close to the relevant pins, route return currents directly to the ground connection, and avoid long high-impedance traces near the amplifier inputs. Use the manufacturer pin-description table to assign the four amplifier sections and power pins. Check input range, output swing, load current, supply headroom, and thermal rise together. This page also organizes pin compatibility, selection trade-offs, application guidance, and design checks into one engineering-focused reference.

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MC33071D

MC33071D - 44V Single-Supply Op Amp, 4.5MHz GBW | onsemi

The onsemi MC33071D is a single-supply operational amplifier with a 3.0 V to 44 V operating supply range, a 4.5 MHz gain-bandwidth product and a 13 V/µs slew rate, housed in an 8-pin SOIC-8 surface-mount package. It is a single amplifier in the MC33071/72/74 and MC34071/72/74 family, so a dual or quad version is available when more channels are needed on the same board. An operational amplifier, or op amp, is a high-gain differential amplifier whose inverting and non-inverting inputs are compared and whose output is driven to correct the difference between them. In the product-type hierarchy, an op amp belongs to the amplifier IC class, then to analog integrated circuits, then to the wider semiconductor family. Because the MC33071D is built on quality bipolar fabrication with innovative design concepts rather than JFET input devices, it combines wide signal swing capability with fast settling behavior over an unusually wide supply range. Key features of this device include the wide 3.0 V to 44 V single-supply capability, 4.5 MHz gain-bandwidth product, 13 V/µs slew rate, and low input offset voltage of 3 mV typical (5 mV maximum per the distributor listing). The amplifier operates from a -40 °C to +85 °C ambient temperature range and is specified for standard (general-purpose) instrumentation, buffer and op-amp applications. Technically, the MC33071D combines a wide internal common-mode and output voltage range with bipolar input and output stages, which allows the output to swing close to the supply rails on low-supply designs while still tolerating industrial rails well above 44 V in feedback loops and sensing stages. The 4.5 MHz bandwidth combined with 13 V/µs slew rate means a 10 V output step settles in roughly a microsecond, fast enough for closed-loop control loops at audio and low-frequency instrumentation bandwidths. Typical uses include industrial sensor signal conditioning, precision current-sense and voltage-feedback networks in power supplies, low-frequency audio driver stages, transducer and bridge preamplifiers, and general-purpose buffering where the supply rail can exceed the 18 V limit of typical 5 V single-supply op amps. When designing with this part, remember that the wide supply rating is a maximum, not a target. Keep input and output common-mode voltages inside the linear input range, place a 0.1 µF ceramic bypass capacitor at each supply pin with additional bulk capacitance nearby, and check output swing headroom at the highest ambient temperature. This page consolidates supply-range, bandwidth, slew-rate and offset specifications together with drop-in alternatives and practical layout guidance, so you can select the amplifier and the surrounding passive network without rebuilding the design from scratch.

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MC33071P

MC33071P - 3-44V Single Operational Amplifier | onsemi

The onsemi MC33071P is a single general-purpose operational amplifier designed for single-supply operation from 3.0 V to 44 V. It provides a maximum input offset voltage of 5 mV, a gain-bandwidth product of 4.5 MHz, and supply current of 1.9 mA in an 8-pin PDIP package. The device is suited to industrial instrumentation, sensor conditioning, power-control loops, and signal-processing systems requiring wide supply-voltage tolerance. An operational amplifier is an analog integrated circuit that uses high open-loop gain to amplify the difference between two input voltages. The MC33071 belongs to the precision operational-amplifier hierarchy, combining a wide common-mode input range, single-supply operation, and general-purpose signal handling in one package. Its ability to operate from a 3.0 V supply supports modern low-voltage systems, while the 44 V upper limit accommodates higher-voltage industrial rails. Key electrical characteristics include a 5 mV maximum input offset voltage and a 4.5 MHz gain-bandwidth product. These specifications make the amplifier useful for low-level AC signal paths where input offset can influence accuracy and where bandwidth determines the range of signals that can be amplified without excessive gain reduction. The 1.9 mA supply current supports power-conscious designs while retaining useful operating speed. The MC33071P uses a conventional bipolar operational-amplifier architecture. In a typical non-inverting configuration, the input signal is applied to the non-inverting terminal and feedback is returned to the inverting terminal. Its broad supply range allows operation from unregulated or industrial supply sources, although input common-mode and output-swing limits must be respected at each supply voltage. Typical uses include low-level sensor amplification, transducer buffering, industrial control loops, audio preamplification, and general analog signal conditioning. It can also form active filters and waveform-shaping circuits when the required gain and bandwidth remain within the device's operating limits. Bypass capacitors placed close to the supply pins help reduce noise and stabilize operation in practical layouts. The primary design trade-off is that a general-purpose bipolar amplifier does not provide the very low offset, low power, or rail-to-rail output performance of specialized modern amplifier families. Confirm common-mode range, output swing, input bias current, and stability requirements against the actual supply voltage before using it in precision or battery-powered systems. This product record combines the MC33071P electrical characteristics, package information, verified drop-in candidates, application guidance, and PCB design considerations. The comparison and selection material helps engineers distinguish same-family and cross-brand options without overlooking differences in supply range, bandwidth, offset voltage, or package.

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MC33077P

MC33077P - 37 MHz Low-Noise Dual Op Amp | onsemi

The onsemi MC33077P is a dual, general-purpose operational amplifier built with precision bipolar design techniques, providing a 37 MHz gain-bandwidth product and an 11 V/µs slew rate in an 8-pin PDIP package. It is intended for instrumentation, signal-conditioning, and amplification applications that require low noise, high frequency response, and precise channel matching. An operational amplifier, or op amp, is an analog active device that amplifies the difference between two input voltages. The MC33077P contains two independent amplifier circuits in one monolithic package, making it a dual op amp. Within the product hierarchy, it belongs to the operational amplifier and analog amplifier categories, where it provides a higher-speed alternative to general-purpose precision amplifiers. The MC33077 family uses innovative bipolar construction, analog resistor trimming, and dual-doublet frequency compensation. Analog trimming is used to obtain low input offset voltages, while the precision-matching approach supports closely matched amplifier channels. These techniques support applications in measurement systems, audio and communication circuits, active filters, and low-level analog signal chains. Verified distributor information identifies the MC33077P as a 2-circuit, 8-PDIP general-purpose amplifier with 37 MHz bandwidth. A separate distributor listing reports an 11 V/µs slew rate, indicating that the device can support signal transitions well beyond audio frequencies when the surrounding circuit permits. Exact noise density, input bias current, input offset voltage, supply-current, and common-mode limits were not included in the supplied verification data and must be confirmed against the manufacturer datasheet before design release. Typical uses include instrumentation preamplification, active filtering, audio signal conditioning, and general high-frequency analog processing. In a typical signal chain, the device would follow a low-amplitude sensor or filter stage and drive a higher-impedance ADC input, buffer, or measurement front end. Because the amplifiers are internally matched, dual-channel differential or ratiometric measurements are practical when board layout and resistor matching are controlled. The primary design consideration is ensuring that the surrounding circuit does not degrade the amplifier's noise and accuracy performance. Place decoupling capacitors close to the supply pins, keep feedback-loop routing short, and avoid parasitic capacitance on high-impedance input nodes. Confirm the exact pinout, supply range, noise specifications, input common-mode limits, and output-current capability in the onsemi MC33077 datasheet before layout release.

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MC33078D

MC33078D - Dual Low-Noise 15MHz Op Amp | Texas Instruments

The Texas Instruments MC33078D is a bipolar dual operational amplifier with two independent amplifiers, 4.5 nV/√Hz input-voltage noise, a 15 MHz gain-bandwidth product, and a 7 V/µs slew rate. The device is supplied in an 8-pin SOIC package and is intended for audio and data-signal applications operating from -40 °C to 85 °C. A dual operational amplifier combines two amplifiers in one package, providing a practical path from analog signal conditioning to broader voltage-amplifier and analog IC functions. Each channel can amplify, buffer, filter, or drive a defined analog signal when used with suitable external components. MC33078D is particularly useful where low noise, wide bandwidth, and fast large-signal response are more important than the very low power consumption associated with CMOS-only amplifiers. The MC33078D uses bipolar technology, which supports low-noise operation and audio-focused performance. Its 4.5 nV/√Hz input-noise figure is suited to high-fidelity audio preamplification, microphone-stage signal conditioning, and low-level instrumentation. A 15 MHz gain-bandwidth product supports higher closed-loop bandwidth than slower general-purpose precision amplifiers, while the 7 V/µs slew rate provides improved ability to reproduce large-amplitude signals without excessive distortion. Two independent channels in one package reduce board area for balanced, differential, or multi-stage analog circuits. The 8-pin SOIC (D) package uses a familiar surface-mount footprint and supports automated assembly. Because its dual topology is not rail-to-rail by specification, applications must account for the allowable input and output voltage ranges when using single-supply or dual-supply configurations. Decoupling and stable feedback-network design remain essential for low-noise performance. Typical uses include stereo audio input amplification, active equalization, low-level sensor conditioning, line-stage amplification, and mixed-signal filtering. The two channels may also implement separate gain blocks, buffers, or active filters when the required common-mode range and output swing fit the application. In audio designs, low-noise operation helps preserve quiet signal paths, while the 15 MHz bandwidth and 7 V/µs slew rate provide headroom for detailed waveform reproduction. When laying out the circuit, place the power-supply bypass capacitor close to the supply pins and keep feedback resistors and input components compact to minimize parasitic capacitance and noise pickup. Verify gain-bandwidth and stability requirements with the actual noise-gain network. Single-supply operation may require biasing or AC coupling if the source cannot reach ground, so confirm the input common-mode range before finalizing the schematic. This product page combines manufacturer specifications, package information, practical analog-design guidance, and verified drop-in alternatives. It also highlights the exact differences between same-manufacturer and cross-manufacturer options, helping engineers compare compatibility, bandwidth, noise, temperature range, and application fit before making a board-level replacement decision.

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MC33078N

MC33078N - Dual Low-Noise 15MHz Op Amp | STMicroelectronics

STMicroelectronics MC33078N is a monolithic dual bipolar operational amplifier optimized for low-noise audio and data-signal applications. The device provides two amplifiers, 4.5 nV/√Hz voltage-noise density, a 15 MHz gain-bandwidth product, and a 7 V/µs slew rate in an 8-pin Mini DIP package. It supports both single-supply and dual-supply operation, allowing its dual amplifier to process audio channels or implement gain, filtering, buffering, and signal-conditioning functions. An operational amplifier is a high-gain differential amplifier whose inverting and non-inverting inputs are compared to produce an amplified output. The bipolar input stage of the MC33078N combines low voltage noise with a wide gain-bandwidth product and high slew rate. In the broader semiconductor hierarchy, the MC33078N is an analog amplifier IC, more specifically a dual low-noise operational amplifier used in audio, instrumentation, and general-purpose signal-processing circuits. The principal performance features include 4.5 nV/√Hz input-voltage noise, 15 MHz gain-bandwidth product, and 7 V/µs slew rate. Its two amplifier channels provide design economy in stereo audio preamplifiers, active filters, line drivers, and instrumentation. The 8-pin Mini DIP package is also suitable for through-hole construction and prototyping where dual-line access and straightforward manual assembly are useful. The bipolar architecture provides the fast large-signal response needed for audio signals while retaining low noise for microphone-level and line-level work. The 15 MHz gain-bandwidth product supports wider closed-loop bandwidth than a low-frequency general-purpose amplifier, while the 7 V/µs slew rate helps the device reproduce large-amplitude waveforms without excessive distortion. Supply topology determines the usable common-mode and output-voltage ranges, so single- and dual-supply circuits require different biasing arrangements. Typical applications include stereo audio preamplification, active crossover and equalization networks, microphone preamplifiers, line-level buffers, active filters, sensor signal conditioning, and general dual-channel analog processing. In stereo equipment, the two channels can process left and right signals independently, reducing component count and helping maintain matched channel layouts. For new PCB designs, place the decoupling capacitor close to the supply pin and connect the exposed return path directly to the ground plane. When replacing an existing MC33078 footprint, verify the exact power-supply range, common-mode limits, output swing, noise characteristics, and stability requirements rather than relying only on the DIP-8 outline. This page combines manufacturer specifications, cross-reference information, practical application guidance, and package-aware replacement analysis to support faster engineering evaluation and sourcing.

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MC33078P

MC33078P - Dual 16MHz Low-Noise Op Amp | Texas Instruments

The Texas Instruments MC33078P is a bipolar dual operational amplifier with 16 MHz gain-bandwidth product, a 7 V/µs slew rate, and 4.5 nV/√Hz input voltage noise, supplied in an 8-pin PDIP package. The device supports single-supply and dual-supply operation over a voltage range of ±5 V to ±18 V and is intended for quality audio and data-signal processing applications. An operational amplifier is an analog signal-conditioning IC that uses high-gain differential amplification to increase the voltage difference between two inputs. In the wider hierarchy, an op amp belongs to amplifiers, analog integrated circuits, and signal-chain conditioning devices. The MC33078P contains two independent amplifiers in one package, allowing one package to serve two channels while reducing board area and simplifying dual-audio or dual-data-signal designs. The MC33078/9 family uses bipolar transistor technology with high-frequency PNP input transistors. This architecture provides low input voltage noise, high gain-bandwidth product, high slew rate, low total harmonic distortion of 0.002%, and a low input offset voltage of 0.15 mV. These characteristics make the amplifier suitable for audio preamplification, filtering, instrumentation, and general-purpose analog signal conditioning where both small-signal fidelity and bandwidth are important. The two channels operate independently from the same supply pins. Its 16 MHz gain-bandwidth product allows useful closed-loop bandwidth well below the unity-gain frequency, while the 7 V/µs slew rate supports faster large-signal transitions than many general-purpose bipolar op amps. Noise and distortion figures should therefore be evaluated in the same signal bandwidth and output amplitude used in the target circuit; headline values do not describe complete system performance by themselves. Typical uses include microphone and line-level audio amplification, active filters, analog instrumentation, low-level sensor conditioning, and dual-channel signal processing. The 8-pin PDIP package is suitable for through-hole construction, prototyping, repair work, and applications where the larger package is acceptable. Local bypass capacitors close to the supply pins remain important for stable operation and low-noise performance. The principal design trade-off is package size rather than electrical capability: PDIP-8 is easy to install manually but occupies more PCB area than surface-mount dual-op-amp packages. Designers should preserve adequate output-current headroom for capacitive loads, verify stable operation with the selected feedback network and load, and avoid assuming that low-noise input devices are interchangeable with FET-input amplifiers because bias-current and distortion behavior differ. This page consolidates the verified manufacturer specifications, distributor availability references, and engineering-focused selection guidance for MC33078P. It also distinguishes documented MC33078-family options from true pin-compatible replacements, helping engineers avoid treating merely similar amplifiers as drop-in substitutes.

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MC33079D

MC33079D - 15 MHz Low-Noise Quad Op Amp | onsemi

onsemi MC33079D is a low-noise, quad operational amplifier with four amplifiers in a 14-pin SOIC package. Its headline specifications are 4.5 nV/√Hz voltage-noise density, a 15 MHz gain-bandwidth product, and a 7 V/µs slew rate. The MC33079 uses bipolar input transistors and is intended for audio and data-signal processing applications requiring low noise, high-frequency response, low distortion, and stable operation. An operational amplifier, or op amp, is a high-gain differential amplifier whose external feedback defines its gain and bandwidth. Within the semiconductor hierarchy, an op amp belongs to the linear amplifier and analog signal-conditioning categories. It is used to amplify weak sensor signals, buffer high-impedance sources, implement active filters, and provide gain in audio and control paths. The MC33079 integrates four amplifiers in one package, reducing board area while providing consistent device-level matching. The MC33079D combines 4.5 nV/√Hz low-voltage-noise performance with a 15 MHz gain-bandwidth product. Its 7 V/µs slew rate supports faster large-signal transitions than slower general-purpose amplifiers. Additional features include 0.002% distortion, a large output-voltage swing, 2 kV ESD protection, and a macromodel for simulation. These characteristics make the device relevant to microphone preamplification, active audio crossover networks, audio buffer stages, and precision low-frequency signal conditioning. The bipolar architecture uses high-frequency PNP input transistors to provide low input-voltage noise. Because the amplifiers are not rail-to-rail, system designers should verify input common-mode range and output swing against the selected supply voltage. The listed operating-voltage range of 2.5 V to 15 V permits operation from low-voltage analog systems through conventional ±15 V bipolar supplies. The four amplifiers share a common package, although each output still requires suitable output-current and stability analysis for its load. Typical uses include four-channel audio buffering, low-level microphone amplification, active equalization, filtering, instrumentation interfaces, and general-purpose analog signal processing. In multi-amplifier designs, adjacent channels can implement gain, filtering, and drive functions without requiring four separate packages. The device can also serve in laboratory and industrial control circuits where low noise and a 15 MHz bandwidth are more important than rail-to-rail input or output operation. The primary design consideration is power-supply configuration. Decouple each supply connection with a local ceramic bypass capacitor, maintain a short return path, and place input and feedback components close to the relevant amplifier pins. Avoid using the quad amplifier merely because four circuits are required: confirm common-mode limits, output-swing headroom, capacitive-load stability, noise-gain bandwidth, and channel-to-channel layout symmetry before releasing the PCB. This product record combines the MC33079D manufacturer-datasheet specifications, package information, search queries, and cross-reference findings with practical design guidance. It also highlights genuine replacement constraints: a mechanically similar 14-pin SOIC amplifier is not automatically a drop-in replacement, so common-mode range, bias current, stability, noise, and exact pin assignment must be checked before substitution.

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MC33079N

MC33079N - Low-Noise Quad Op Amp | STMicroelectronics | Audio

STMicroelectronics MC33079N is a monolithic quad operational amplifier designed for audio and general signal-processing applications, with four amplifiers in a 14-pin DIP package. Its headline characteristics are 4.5 nV/√Hz voltage noise, a 15 MHz gain-bandwidth product, and a 7 V/µs slew rate. The device is intended for designs that require low-noise signal amplification with sufficient bandwidth to handle audio signals and other low-frequency waveforms. An operational amplifier is a voltage-gain building block used throughout analog electronics. The MC33079 belongs to the op-amp hierarchy, where it provides amplification, buffering, filtering, and active gain for analog signals. Its four amplifiers share a common power supply in one package, allowing one quad device to implement several stages of an audio preamplifier, mixer, line amplifier, or measurement circuit while reducing board area. The MC33079N combines low voltage noise with high-frequency performance. The 4.5 nV/√Hz noise density supports low-noise audio amplification, while the 15 MHz gain-bandwidth product provides useful bandwidth for audio-frequency closed-loop designs. A 7 V/µs slew rate supports large-signal reproduction and reduces the likelihood of slew-rate distortion in higher-gain stages. The manufacturer also specifies very low distortion of 0.002%, along with strong phase and gain margins. Its four-circuit organization provides flexibility for mixed-signal layouts. Each amplifier can perform a separate function, such as input amplification, active filtering, buffering, or output drive, when the system does not require all four stages simultaneously. Since this is an analog integrated circuit, its performance depends on suitable bypass capacitors, stable feedback networks, appropriate source and load impedances, and careful consideration of common-mode and output-voltage limits. Typical uses include stereo and multichannel audio preamplification, active crossover networks, microphone and line-level signal conditioning, servo-control loops, and instrumentation requiring multiple amplifiers. The quad format can also reduce component count by replacing several individual single or dual amplifier packages. Where an existing amplifier section uses an equivalent 14-pin quad footprint, the MC33079N can serve as a focused upgrade for lower-noise audio operation after checking pin functions and operating limits. Design the supply rails to remain within the device's operating requirements and place the bypass capacitors close to the power pins. Keep feedback loops short, use resistors and capacitors suitable for the intended audio bandwidth, and verify stability with the selected gain and load. An oscilloscope measurement of output clipping, noise, and slew behavior can confirm that the overall circuit, rather than the op amp alone, meets the system specification. This page organizes the MC33079N's principal electrical characteristics, package details, application guidance, drop-in replacement options, and engineering trade-offs. It is designed to help engineers evaluate noise, bandwidth, slew rate, distortion, and compatibility before integrating the amplifier into an audio or precision analog design.

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MC33102P

MC33102P - Dual 100nA 1.7V/us Operational Amplifier | Onsemi

The onsemi MC33102P is a dual operational amplifier with a two-state Sleep-Mode architecture, combining two amplifier channels in an 8-pin PDIP package. It is designed for low-power signal conditioning where the amplifier can remain in a low-power sleep state while waiting for an input signal and switch to an awake state when amplification is required. The device is specified as a micropower operational amplifier with 100 nA supply current, 1.7 V/us slew rate, and 4.6 MHz gain-bandwidth product. An operational amplifier is an active analog signal-conditioning component that uses high-gain differential amplification to increase the voltage level of a weak or small signal. A dual operational amplifier contains two amplifier sections in one package, allowing two related signals to be processed simultaneously while reducing board area. The MC33102P adds Sleep-Mode technology to this familiar amplifier function, making it useful in portable instruments, sensor interfaces, battery-powered systems, and other applications where standby consumption matters. The MC33102P's main features include dual general-purpose amplifier channels, a sleep-mode operating state, an awake-mode operating state, 100 nA supply current, 1.7 V/us slew rate, and 4.6 MHz gain-bandwidth product. The low supply current supports designs that spend significant time monitoring or waiting for a valid input. The sleep and awake states provide a mechanism to control when the amplifier is intended to respond to signal activity. The dual configuration allows the part to handle two amplifier functions in one package, such as signal conditioning for two sensor channels, an instrumentation front end, or gain stages around a comparator and data-conversion system. The 4.6 MHz gain-bandwidth product supports moderate-bandwidth applications, while the 1.7 V/us slew rate provides useful response for slowly varying and low-to-moderate-frequency analog signals. Its PDIP-8 package is suitable for conventional through-hole PCB assembly and prototyping. When designing around the MC33102P, check the input common-mode range, output swing, supply-voltage limits, stability requirements, and the meaning of the sleep-mode control behavior in the manufacturer datasheet. Place the device close to the signal source when handling high-impedance nodes, provide normal bypassing at the supply pins, and account for input bias-current errors and offset voltage when resolving low-level signals. This product page combines the MC33102P device identity, package information, operating characteristics, sourcing guidance, comparison framework, and practical design notes. The information is intended to help engineers confirm pin compatibility, assess the dual low-power amplifier architecture, and select a suitable replacement or design approach without treating a different package or electrical function as a drop-in substitute.

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MC33121P

MC33121P - Low-Voltage SLIC Interface | Motorola | PBX

The Motorola MC33121P is a low-voltage Subscriber Line Interface Circuit (SLIC) designed to connect the four-wire side of a central office or PBX to a two-wire subscriber line in a 14-pin plastic DIP package. It provides battery feed, loop-termination AC impedance, hookswitch detection, adjustable transmit, receive, and transhybrid gains, and single or double fault indication. The verified MC33121P listing identifies a 14-PDIP package, while the available technical material specifies a minimum longitudinal balance of 58 dB. A Subscriber Line Interface Circuit, or SLIC, is an integrated telecommunications interface that replaces many discrete functions associated with a analog telephone line. In the broader hierarchy, it is a specialized line interface IC within interface ICs and telecommunications semiconductors. It bridges a central-office or PBX voice path and a subscriber loop while separating transmit and receive signals, supporting line termination, and exposing hookswitch and fault information to the surrounding codec or control electronics. The MC33121P integrates several line-facing functions into one device. Battery feed supplies the line, while proper loop termination establishes the intended AC impedance seen by the subscriber. Adjustable transmit, receive, and transhybrid gains allow the surrounding system to control voice-path levels and balance. Hookswitch detection reports line activity, and separate status outputs indicate single or double faults, reducing the number of external discrete monitoring elements. Transmit and receive signals are referenced to analog ground, while digital status and control signals are referenced to digital ground. This separation simplifies interconnection with codecs, filters, and digital control logic. The hookswitch and fault outputs are compatible with TTL/CMOS, and the power-down input permits local shutdown. These interface features make the MC33121P suitable for integrated access, subscriber-line, PBX, voice codec, and central-office interface designs. Typical uses include a PBX line card, a central-office subscriber interface, a two-wire telephone-line interface, a voice codec interface, a hookswitch monitor, and a line-fault indication circuit. In each case, the IC provides the physical subscriber-line interface while external circuitry handles codec conversion, call control, supervision, and system-level power management. Because this legacy device is a through-hole 14-pin DIP, it is most practical for legacy designs, repair assemblies, and industrial or telecommunications equipment that can accommodate through-hole leaded components. Designers should preserve separate analog and digital grounding paths and connect the device to the selected codec, filter, and line-conditioning network exactly as shown in the manufacturer application material. Before production use, verify the unavailable operating voltage, temperature range, loop-current limits, external-component values, and absolute maximum ratings against the manufacturer datasheet. Those parameters are not supplied in the verified excerpts and therefore cannot be safely inferred. This page consolidates verified distributor pricing, package information, interface functions, comparison fields, and practical implementation cautions. It also distinguishes documented MC33121P characteristics from unverified alternatives, avoiding unsupported claims that a different SLIC is truly pin-to-pin compatible.

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MC33171D

MC33171D - 1.8MHz Low Power Single Op-Amp SOIC-8 | STMicroelectronics

The STMicroelectronics MC33171D is a low-power single bipolar operational amplifier fabricated with quality bipolar processing and innovative design concepts, housed in an 8-pin SOIC package. It operates at 180 uA per amplifier, delivers a 1.8 MHz gain bandwidth product and a 2.1 V/us slew rate, and supports supply operation from 3 V to 44 V single-supply (or split supplies). An operational amplifier (op-amp) is an analog building block within the broader hierarchy of amplifier ICs and linear semiconductors. It amplifies the voltage difference between its inverting and non-inverting inputs with high open-loop gain, and its behavior in a circuit is set almost entirely by external feedback components. General-purpose op-amps such as the MC33171 series sit at the entry level of this taxonomy, below precision, high-speed, and instrumentation amplifier families, yet they remain the workhorse of analog signal conditioning. Key features of the MC33171 include its exceptionally low 180 uA supply current per amplifier, which makes it attractive for battery-powered and energy-conscious designs. The bipolar fabrication (without JFET device technology) gives robust input behavior and predictable industry-standard single-op-amp pinout. The wide 3 V to 44 V supply range allows operation from single low-voltage rails or from higher industrial buses, and the device is particularly suited for single-supply operation although it can run from split supplies. Technically, the MC33171/72/74 monolithic series combines the low static current with usable AC performance: the 1.8 MHz bandwidth covers audio and low-frequency instrumentation needs, while the 2.1 V/us slew rate supports moderate-amplitude signal swings without excessive distortion at those frequencies. Typical applications include battery-powered portable instruments, sensor signal conditioning, active filters, transducer amplifiers, and low-frequency comparators or level shifters in industrial control, where low quiescent drain and wide supply tolerance matter more than ultra-high speed. A key design consideration: because it is optimized for low power rather than high speed, allow adequate settling margin in feedback networks and avoid pushing large output swings near the 1.8 MHz bandwidth limit to prevent slew-induced distortion. This page adds value beyond the manufacturer datasheet by consolidating cross-brand availability context, drop-in alternative guidance, practical design notes, and sourcing access through the Request a Quote form.

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MC33171N

MC33171N - 2.1MHz Low-Power Op Amp | STMicroelectronics

STMicroelectronics MC33171N is a single bipolar operational amplifier with a 2.1 MHz gain-bandwidth product, 2 V/us slew rate, 200 uA supply current, and a DIP-8 package. It supports single-supply operation from 4 V to 44 V, while its input common-mode range extends to the lower supply rail. These characteristics make the MC33171N suitable for low-power analog signal conditioning, industrial instrumentation, sensor interfaces, and general-purpose voltage amplification. An operational amplifier is an analog integrated circuit that uses high open-loop gain to amplify differences between two input voltages. The bipolar MC33171N belongs to the operational-amplifier, analog-IC, and semiconductor hierarchy. Its rail-to-rail input common-mode capability is particularly useful in single-supply systems because the input signal can approach the lower supply rail without requiring a negative power source. The principal features are a 2.1 MHz gain-bandwidth product, a 2 V/us slew rate, and a typical supply current of 200 uA. The 2.1 MHz bandwidth provides useful bandwidth for general-purpose analog stages, while the 2 V/us slew rate limits how quickly the output can follow large voltage changes. Low 200 uA consumption supports battery-powered and distributed instrumentation designs where amplifier power can dominate the system budget. The MC33171N uses a single bipolar amplifier architecture rather than a JFET-input implementation. This architecture combines low supply consumption with moderate operating speed and makes the device appropriate for continuous analog signal processing without the static bias current associated with higher-performance precision amplifiers. Its 4 V to 44 V single-supply range allows operation from conventional 5 V and 12 V rails as well as higher industrial supply voltages. Typical applications include low-frequency instrumentation amplifiers, current-sensor signal conditioning, buffered sensor outputs, industrial control inputs, and low-power analog measurement systems. The input common-mode range extending to the lower rail is valuable in systems powered from a single positive supply, where input signals can be close to ground. Gain and bandwidth should be selected together so that the closed-loop noise gain remains compatible with the 2.1 MHz gain-bandwidth product. A key design consideration is the relationship between supply voltage, output swing, and input range. Confirm that the required signal and output remain inside the operating limits before assigning a high closed-loop gain. Keep feedback routing short, place input and supply bypass capacitors close to their relevant pins, and avoid extending high-impedance input traces where leakage and interference can degrade accuracy. This product page combines the STMicroelectronics MC33171 operating characteristics with package guidance, pin assignments, application analysis, verified drop-in alternatives, and practical circuit-design notes. It is intended to help engineers select the amplifier, confirm footprint compatibility, and plan an efficient single-supply analog implementation.

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MC33171P

MC33171P - 3-44V Low-Power Op Amp | onsemi | 8-PDIP

onsemi MC33171P is a single, general-purpose operational amplifier with a 3.0 V to 44 V supply range, low 180 uA operating current per amplifier, 1.8 MHz gain-bandwidth product, and 2.1 V/us slew rate. The device is packaged in an 8-pin plastic dual in-line package (8-PDIP). Its bipolar input stage provides a practical alternative to JFET-input amplifiers in applications that do not require JFET characteristics. An operational amplifier is an analog integrated circuit that amplifies the voltage difference between its inverting and non-inverting inputs. The MC33171 belongs to the operational-amplifier hierarchy within analog and mixed-signal semiconductors. It can operate from a single supply or split supplies, allowing it to serve as a general-purpose amplifier, buffer, comparator, or active-filter building block in industrial, instrumentation, and control circuits. Key characteristics include the wide 3.0 V to 44 V operating range, 180 uA current consumption per amplifier, 1.8 MHz gain-bandwidth product, and 2.1 V/us slew rate. These values position the device for low-power, moderate-bandwidth signal conditioning where a larger package is acceptable and through-hole assembly is preferred. The 8-PDIP format also simplifies prototyping, breadboarding, repair, and manual production processes. The bipolar fabrication approach provides the stated bandwidth and slew-rate performance without JFET-device technology. Because the operating supply extends to 44 V, the amplifier can accommodate higher-voltage systems than conventional low-voltage operational amplifiers. Designers must still verify input and output common-mode limits against the selected supply configuration before using the amplifier outside its intended operating region. Typical uses include low-frequency sensor conditioning, buffered transducer interfaces, audio preamplification, industrial control signals, power-supply feedback monitoring, and active analog filters. The 1.8 MHz gain-bandwidth product is suitable for many audio and instrumentation stages, while the 2.1 V/us slew rate supports reasonably clean responses to moderate-amplitude step inputs. When designing a board around the MC33171P, maintain adequate input and output voltage headroom, bypass the supply pins close to the device, and route high-impedance input signals with minimal leakage and contamination. Stable operation also depends on the feedback network, source impedance, output loading, and application-specific settling requirements. This product page combines the manufacturer's MC33171 family documentation, distributor package information, search-focused technical data, and practical design guidance. It also distinguishes verified drop-in alternatives from broader equivalents that may require different packages, supply ranges, or performance checks before substitution.

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MC33172D

MC33172D - Low-Power Dual Op Amp | STMicroelectronics

The STMicroelectronics MC33172D is a low-power dual bipolar operational amplifier with two amplifier circuits, a gain-bandwidth product of 1.8 MHz, and an 8-pin SOIC package. It is designed for general-purpose signal conditioning applications where two independent amplifiers are useful in a single package. An operational amplifier is a voltage-controlled differential amplifier that compares two input voltages and amplifies their difference. Operational amplifiers form part of the broader analog IC and active-signal-processing hierarchy. The MC33172D uses bipolar transistor input stages and is suitable for functions such as buffering, gain amplification, comparisons, filtering, and instrumentation interfaces when configured with suitable external resistors and capacitors. Each MC33172D channel provides a practical combination of low power consumption and general-purpose signal handling. The device contains two amplifier circuits in one 8-SOIC package, reducing component count and board area in designs requiring paired amplification. Its listed maximum input offset voltage is 6.5 mV, while its unity-gain bandwidth is 1.8 MHz. These characteristics suit signal paths that do not require the very low offset, very high bandwidth, or very low noise associated with specialized precision amplifiers. The bipolar architecture is appropriate for low-frequency control, measurement, and conditioning circuits where the amplifier operates mainly in a closed-loop configuration. Noise, offset, input common-mode range, output swing, supply current, and stability characteristics must be checked against the actual signal amplitude and frequency before the device is used. Negative feedback, adequate output loading, and input-referenced compensation should follow the manufacturer's recommended application circuits. Typical applications include dual-axis sensor signal conditioning, active filtering, audio preamplification, threshold detection, low-frequency instrumentation, and general industrial control. Two channels can also implement differential or complementary signal processing when their inputs and outputs are configured appropriately. The 8-SOIC package is easy to assemble with conventional surface-mount production equipment and can simplify upgrades compared with discrete single-amplifier packages. Designers should verify the supported supply voltage, common-mode input range, output swing, input bias current, and operating temperature against the manufacturer's datasheet. Input and output voltages must remain within the electrical limits, and unused amplifier inputs should be biased rather than left floating. Stable feedback-network values are essential at higher frequencies. This product page combines package details, searchable technical questions, application guidance, and a drop-in comparison focused on practical amplifier selection. It helps engineers distinguish the dual bipolar MC33172D from higher-speed rail-to-rail alternatives before committing a circuit board to an 8-SOIC footprint.

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MC33172N

MC33172N - Dual 44V Low-Power Op Amp | STMicroelectronics

The STMicroelectronics MC33172N is a dual bipolar operational amplifier designed for low-power signal conditioning from single or dual supplies. It provides two amplifiers in an 8-pin PDIP package, operates from +4 V to +44 V, or equivalently from ±2 V to ±22 V, and is specified for approximately 200 µA per amplifier. The device offers 2.1 MHz gain-bandwidth product and a 2 V/µs slew rate for a practical balance of speed, power consumption, and operating range. An operational amplifier is an analog signal-processing IC that amplifies the voltage difference between its two inputs while using feedback to control gain, bandwidth, and output behavior. The dual-amplifier configuration places two independent amplifiers in one package, reducing board area in audio, instrumentation, industrial control, and sensor-interface circuits. MC33172N belongs to the bipolar operational-amplifier family within the broader voltage-regulator-free analog IC and semiconductor hierarchy. The headline electrical characteristics are its dual-amplifier architecture, 2.1 MHz gain-bandwidth product, 2 V/µs slew rate, and low supply current of approximately 200 µA per amplifier. These specifications make the device suitable for signals that require more bandwidth than a micropower-only amplifier but do not demand the very high speed or rail-to-rail performance of newer CMOS families. Its wide supply range also allows operation from conventional ±15 V and ±22 V analog rails. The MC3x172 series uses a bipolar input and output architecture rather than JFET input. This family construction supports operation from very low positive supplies through relatively high industrial voltage rails. Because the amplifiers are specified for both single- and dual-supply operation, the same device can be used in grounded single-supply designs, where the signal is biased around the midpoint of the supply, or in conventional dual-rail systems. Typical applications include low-frequency audio amplification, instrumentation-amplifier input stages, industrial sensor buffers, general-purpose signal conditioning, and power-supply feedback or monitoring circuits. The 8-pin PDIP package is mechanically straightforward for through-hole assembly and prototype work. The relatively low 200 µA-per-amplifier supply current is particularly useful when each active channel must remain powered continuously within a multi-channel measurement system. The principal design consideration is common-mode and output-range behavior. Designers should calculate signal swing, input bias requirements, and the effect of load current before fixing external resistor values. Because this is a bipolar amplifier rather than a rail-to-rail CMOS amplifier, input and output headroom must be checked against the selected supply voltage. Stable operation also depends on correct feedback topology and suitable output-load isolation. This product page combines the manufacturer datasheet with practical guidance for supply selection, signal conditioning, PCB implementation, and replacement assessment. It also distinguishes true pin-and-footprint-compatible options from broader functional equivalents so engineers can make a replacement decision without treating a similar amplifier as an automatic drop-in substitute.

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MC33174D

MC33174D - Low-Power Quad Bipolar Op Amp | STMicroelectronics

STMicroelectronics MC33174D is a low-power quad bipolar operational amplifier with 200 uA supply current per amplifier, 2.1 MHz gain-bandwidth product, and 2 V/us slew rate. The device is offered in a 14-pin SOIC package and supports single-supply operation from +4 V to +44 V. Its input common-mode range extends to the lower supply rail, making it useful in low-side sensing and single-supply signal chains. An operational amplifier, or op amp, is a high-gain analog building block used to amplify, buffer, filter, compare, and control voltage signals. MC33174D belongs to the broader amplifier IC, analog IC, and semiconductor hierarchies. Unlike an amplifier built around JFET input devices, this bipolar implementation combines low supply consumption with useful low-frequency bandwidth and slew performance for general-purpose analog signal conditioning. The four amplifiers provide flexible circuit partitioning for industrial instrumentation, sensor interfaces, active filters, and control loops. Key characteristics include 200 uA supply current per amplifier, 2.1 MHz gain-bandwidth product, and 2 V/us slew rate. The input common-mode range reaches the lower supply rail, which simplifies designs powered from a single positive rail while the signal approaches the lower operating limit. Operation from +4 V to +44 V gives the device broad supply-voltage flexibility. The 14-pin SOIC package supports conventional surface-mount assembly, while the quad channel count consolidates four amplifiers into one component. The manufacturer datasheet identifies the MC3x174 family as low-power bipolar operational amplifiers that combine low consumption with improved speed compared with basic general-purpose bipolar alternatives. Typical uses include low-side current sensing, buffered sensor outputs, precision signal conditioning, sample-and-hold circuits, active filters, and low-frequency control loops. The extended lower-rail common-mode capability is particularly valuable when a measurement begins near ground and the circuit has only one positive supply. Split-supply operation remains possible where bipolar signals or output swing are required. Designers should verify input and output voltage limits, common-mode range, output-load capability, and stability requirements against the manufacturer datasheet for the operating condition. Decoupling capacitors should be placed close to the supply pins, and each amplifier stage should be checked for output saturation during startup and overload transients. This page organizes the MC33174D specifications, package information, verified sourcing context, drop-in alternatives, comparison parameters, and application guidance into one engineering-focused reference. It also identifies the limits of the available cross-reference information so replacement decisions can be made without treating merely similar amplifier families as confirmed drop-in devices.

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MC33174N

MC33174N - Low Power Quad Bipolar Op-Amp, 2.1MHz | STMicroelectronics

The STMicroelectronics MC33174N is a quad bipolar operational amplifier in a 14-pin PDIP package, combining a low supply consumption of 200 uA per amplifier with a gain-bandwidth product of 2.1 MHz and a slew rate of 2 V/uS, while operating from a single +4 V to +44 V rail. The input common-mode range extends down to the lower supply rail, which allows the four amplifiers to be used directly in single-supply systems where the signal sits near 0 V. An operational amplifier (op-amp) is a voltage-amplifier building block whose gain, bandwidth and accuracy are shaped by negative feedback around a high-gain differential input stage. The MC3x174 family is built with monolithic bipolar fabrication and provides four amplifiers in a single package, making it a member of the analog amplifier IC hierarchy: op-amp -> quad operational amplifier -> analog amplifier IC -> analog semiconductor. Because four amplifiers share one package, a quad device reduces board area, decoupling capacitor count and total part count compared with four discrete single amplifiers. Key features of the MC33174N include the 200 uA low-consumption bias current that suits battery-fed and low-leakage measurement systems, the 2.1 MHz gain-bandwidth product that supports audio-band and general instrumentation signal paths, and the 2 V/uS slew rate that limits large-signal distortion on fast transients. The wide +4 V to +44 V supply span covers industrial 24 V rails, telecom 48 V style environments and split-supply laboratory setups from a single part family, and the rail-to-rail-referenced input stage avoids the need for a mid-supply bias network. Technically, the MC33171/72/74 series uses quality bipolar fabrication with high open-loop gain and 2.1 V/uS slew rate without relying on JFET input devices, which keeps input bias current low and stable while preserving moderate input impedance. The monolithic quad arrangement also means a common die and a common bias network, so all four channels track closely in offset and bandwidth. Because the package is a through-hole PDIP-14 with generous lead spacing, the part is easy to prototype on perfboard and to socket in legacy industrial equipment where surface-mount footprints are impractical. Typical applications include low-power sensor signal conditioning on 24 V industrial loops, battery-powered portable instrumentation, active filters and audio input stages, and general-purpose amplification inside test and measurement equipment. The 44 V maximum supply also allows the part to sit directly behind a protected 24 V or 36 V field wiring with additional headroom for transients. When designing with the MC33174N, note that the amplifier is intended for single-supply operation from +4 V, and while the common-mode input range reaches the lower rail, the output swing and offset behavior near that rail still deserve checking against the signal range you need. Decouple the supply pins close to the package, keep feedback resistors in the same range so noise and offset match, and confirm the input common-mode window in your specific gain configuration before relying on signals close to ground. This page consolidates the manufacturer datasheet parameters, package and pinout detail, plus drop-in replacement candidates and practical design notes, so that you can qualify the MC33174N for a new design or an obsolescence-driven substitution without hunting through multiple documents.

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MC33178D

MC33178D - Low-Power Low-Noise Dual Op Amp | onsemi

onsemi MC33178D is a low-power, low-noise dual operational amplifier designed for audio and data-signal processing applications. It is a monolithic bipolar amplifier using high-frequency PNP input transistors, an architecture selected to provide low input offset voltage, low noise, and low distortion. The device is offered in an 8-pin SOIC package and contains two amplifier circuits, allowing it to support common signal-conditioning tasks in compact analog designs. An operational amplifier is a voltage-amplifying component that uses negative feedback to create controlled gain, filtering, buffering, and signal-conditioning functions. The dual-amplifier configuration places two amplifiers in one package, reducing board area and simplifying designs that require two related channels. Within the broader semiconductor hierarchy, MC33178D belongs to the operational-amplifier family, which is part of the wider analog integrated-circuit and signal-processing categories. The MC33178/9 family combines bipolar transistor implementation with PNP input devices and an NPN output stage. This combination is particularly relevant to audio and general-purpose data processing because the input architecture is intended to reduce offset and distortion while maintaining a practical low-noise operating approach. Its dual-channel organization also makes the device applicable to small-signal amplification, filtering, buffering, and related analog front-end functions. The part can be used where two amplifier channels are needed at the same signal level or operating condition. Typical use cases include audio signal conditioning, low-level sensor amplification, active filtering, buffering, and general analog signal processing. The low-noise characteristic makes it relevant to designs in which the amplifier must preserve a small input signal without adding substantial unwanted noise, while the low-distortion architecture supports cleaner waveform reproduction. When designing around MC33178D, begin by confirming the required input common-mode range, output swing, gain-bandwidth behavior, input offset voltage, input bias current, and supply-current limits against the manufacturer datasheet. Decoupling capacitors should be placed close to the supply pins, and sensitive-input routing should avoid nearby switching nodes and high-current return paths. This page combines the manufacturer family information with package, sourcing, comparison, and design guidance to support initial component evaluation and PCB planning. MC33178D is therefore suited to engineers seeking a compact, dual-channel, low-power bipolar op amp for audio or data-signal processing. Its strongest differentiators are the combined low-noise and low-distortion architecture, dual amplifier integration, and 8-pin SOIC implementation. Confirm the exact electrical limits and environmental ratings for the finished design before release to production.

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MC33199D

MC33199D - ISO 9141 Automotive K-Line Interface | NXP

The NXP MC33199D is an ISO 9141 automotive diagnostic serial interface circuit with one driver and one receiver, designed for a 4.5 V to 5.5 V supply and packaged in a 14-SOIC. The device connects a vehicle microcontroller to the special K and L lines of an ISO diagnostic port. It provides a bidirectional K-line driver, an L-line receiver used during wake-up sequences, short-circuit protection for the K line, and over-temperature protection. An ISO 9141 interface is a dedicated diagnostic communication interface within the broader automotive network. ISO 9141 uses separate K and L conductors rather than a conventional multidrop CAN bus. The K line carries the main diagnostic communication waveform, while the L line helps establish the wake-up sequence. The MC33199D functions as the physical-layer interface between a microcontroller UART and these vehicle-network lines. Key specifications include 1 driver and 1 receiver, a 4.5 V to 5.5 V operating supply range, ISO 9141 protocol support, and a 14-SOIC package measuring 3.90 mm wide. The K-line driver is bidirectional and protected against short circuits and excessive temperature. The L-line receiver supports the diagnostic wake-up sequence, allowing the host controller to recognize and respond to bus activity. The MC33199D simplifies implementation of an ISO 9141 diagnostic port because the MCU can communicate through ordinary serial logic levels while the IC handles the vehicle K and L lines. Its single-driver, single-receiver arrangement is appropriate for one diagnostic channel. Protection of the K-line output reduces the risk of damage from an inadvertent bus short, although the external vehicle wiring, pull-up network, connector, and transient environment still require careful engineering. Typical applications include automotive diagnostic interfaces, engine-control units, transmission controllers, body-control modules, garage-door and service-tool testers, and other embedded systems that emulate or access ISO 9141 diagnostic ports. The device is most appropriate for legacy diagnostic systems rather than new designs centered on CAN, CAN FD, or LIN. When designing around the MC33199D, verify the K-line and L-line interface network, supply decoupling, grounding, and protection required by the vehicle platform. The 5 V supply range excludes direct 3.3 V operation. Because the part is identified as obsolete in the available replacement information, engineers should also evaluate the NXP-recommended MC33660B replacement against footprint, protocol, timing, and protection requirements before committing to a redesign. This product summary consolidates the verified protocol, electrical, package, lifecycle, replacement, pricing-reference, and design information for engineers evaluating the MC33199D. It also distinguishes verified values from specifications that require confirmation from the manufacturer datasheet, avoiding unsupported assumptions about pin assignments or unqualified substitutes.

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MC33201D

MC33201D - 12V Rail-to-Rail Operational Amplifier | onsemi

The onsemi MC33201D is a single-circuit, low-voltage, rail-to-rail input and output operational amplifier packaged in an 8-pin SOIC. It operates from a maximum 12 V supply, accepts input voltages up to 200 mV beyond either supply rail without output phase reversal, and produces an output that can swing to within 50 mV of each rail. These characteristics allow analog signals to use nearly the complete supply-voltage range. A rail-to-rail operational amplifier is an analog signal-conditioning amplifier whose input common-mode range and output voltage range extend close to the positive and negative supply rails. In the broader semiconductor hierarchy, an operational amplifier belongs to the amplifier IC and analog signal-processing categories. It can amplify sensor signals, buffer high-impedance sources, compare voltages, or integrate feedback networks around a single analog signal path. The MC33201D combines rail-to-rail input operation with low-noise, high-output-drive characteristics. Its input stage accepts common-mode signals beyond the nominal supply rails by as much as 200 mV without reversing the output polarity. Its output stage can approach each supply rail within 50 mV, improving usable output swing in low-voltage systems where conventional fixed-range amplifiers leave little headroom. The device is designed for low-voltage analog systems in which common-mode and output range are more important than using a larger, higher-voltage amplifier. Rail-to-rail behavior is particularly useful when a sensor output can move close to a low supply rail, when an ADC or DAC must be driven near the end of its input range, or when a bipolar signal must be handled with a single positive supply. The manufacturer documentation identifies the MC33201, MC33202, MC33204, NCV33201, NCV33202, and NCV33204 as members of the same operational-amplifier family. Typical uses include portable instrumentation, sensor interfaces, low-voltage audio paths, ADC input conditioning, current monitoring, and general-purpose signal amplification. In each case, the designer should verify input bias current, offset voltage, bandwidth, output-current capability, noise, stability, and operating-temperature limits against the manufacturer datasheet before fixing the circuit. The most important design consideration is to preserve the amplifier's stability and rail-to-rail performance. Keep feedback components close to the device, avoid excessive capacitive loading on the output, and account for common-mode behavior in the region where the input stage transitions between internal transistors. Decoupling capacitors should be connected directly between each supply pin and the appropriate ground reference. This product record combines the manufacturer family information with package, function, commercial, comparison, and application guidance. It also identifies same-footprint family options for designs that can tolerate their different input-offset characteristics, while making clear that final substitution requires electrical verification in the target circuit.

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MC33202D

MC33202D - Dual Rail-to-Rail Op Amp | onsemi

The onsemi MC33202D is a dual rail-to-rail operational amplifier designed for low-voltage operation from 1.8 V to 12 V, supplied in an 8-pin SOIC package. The MC33202D contains two amplifier channels, supports rail-to-rail operation at both the input and output stages, and is specified for an ambient temperature range of -40°C to +105°C. These characteristics position it for compact, low-voltage signal-conditioning systems requiring one package to implement two analog channels. An operational amplifier is an analog integrated circuit that compares an input signal with a feedback-defined reference and amplifies the difference between them. In the broader hierarchy, the MC33202D belongs to the operational-amplifier class, then to the amplifier-IC category, and ultimately to the semiconductor and signal-processing markets. Rail-to-rail input operation allows the input common-mode range to extend toward the supply rails, while rail-to-rail output operation improves dynamic range when the output must approach either supply limit. The primary headline features are the 1.8 V to 12 V supply range, dual-channel configuration, and rail-to-rail input and output capability. The 8-pin SOIC package provides a conventional surface-mount footprint suitable for standard PCB assembly methods. Its -40°C to +105°C temperature range makes it relevant to industrial, instrumentation, communications, and consumer applications that require operation across an extended temperature span. MC33202D belongs to the MC33201/MC33202/MC33204 family of low-voltage, rail-to-rail operational amplifiers. The family architecture is intended for low-voltage analog systems in which signal levels may occupy much of the available supply range. Because the device is supplied in a dual amplifier configuration, a complete two-channel circuit can be implemented without selecting two separate single-channel packages, reducing board area and simplifying component procurement. Typical applications include sensor-signal conditioning, low-voltage audio and communications paths, transducer amplification, general-purpose voltage amplification, and dual-channel filtering or feedback networks. For instrumentation applications, the rail-to-rail input characteristic can reduce the need for additional mid-supply biasing when signals vary over a broad range. In communications systems, the low operating voltage can simplify compatibility with modern low-voltage supply rails. Design the surrounding decoupling, input common-mode range, output load, and stability network carefully. Place the power-bypass capacitor close to the supply pins, maintain the device within its specified supply-voltage and temperature limits, and verify the intended feedback topology across the required signal bandwidth. The manufacturer datasheet should be used as the controlling reference for electrical characteristics, limit values, and test conditions. This page organizes the MC33202D datasheet information, pin-compatible replacement candidates, package details, and engineering guidance in a form that helps designers evaluate the amplifier, compare drop-in options, and plan an 8-pin SOIC implementation without relying on generic amplifier-selection advice.

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Подкатегории

Товары (39.000+)

MC3303PG - Quad 1 MHz Operational Amplifier | onsemi | 14-PDIP

MC3303PT - Quad 1 MHz Low-Power Op Amp | STMicroelectronics

MC3303PW - 30V 1MHz Quad Op Amp | Texas Instruments

MC33071D - 44V Single-Supply Op Amp, 4.5MHz GBW | onsemi

MC33071P - 3-44V Single Operational Amplifier | onsemi

MC33077P - 37 MHz Low-Noise Dual Op Amp | onsemi

MC33078D - Dual Low-Noise 15MHz Op Amp | Texas Instruments

MC33078N - Dual Low-Noise 15MHz Op Amp | STMicroelectronics

MC33078P - Dual 16MHz Low-Noise Op Amp | Texas Instruments

MC33079D - 15 MHz Low-Noise Quad Op Amp | onsemi

MC33079N - Low-Noise Quad Op Amp | STMicroelectronics | Audio

MC33102P - Dual 100nA 1.7V/us Operational Amplifier | Onsemi

MC33121P - Low-Voltage SLIC Interface | Motorola | PBX

MC33171D - 1.8MHz Low Power Single Op-Amp SOIC-8 | STMicroelectronics

MC33171N - 2.1MHz Low-Power Op Amp | STMicroelectronics

MC33171P - 3-44V Low-Power Op Amp | onsemi | 8-PDIP

MC33172D - Low-Power Dual Op Amp | STMicroelectronics

MC33172N - Dual 44V Low-Power Op Amp | STMicroelectronics

MC33174D - Low-Power Quad Bipolar Op Amp | STMicroelectronics

MC33174N - Low Power Quad Bipolar Op-Amp, 2.1MHz | STMicroelectronics

MC33178D - Low-Power Low-Noise Dual Op Amp | onsemi

MC33199D - ISO 9141 Automotive K-Line Interface | NXP

MC33201D - 12V Rail-to-Rail Operational Amplifier | onsemi

MC33202D - Dual Rail-to-Rail Op Amp | onsemi