Circuitos Integrados

MC3302P

MC3302P - Quad Single-Supply Comparator | onsemi

The onsemi MC3302P is a quad single-supply comparator with a 14-pin PDIP package. It provides four independent comparator channels for level detection, low-level sensing, memory applications, and other consumer, automotive, and industrial electronics systems. The verified product data identifies a typical input bias current of 25 nA and a typical input offset current of ±5.0 nA, while the specified comparison capability covers ±15 V and 30 V operation. Its through-hole PDIP-14 construction supports legacy industrial and automotive circuit boards that were designed around a quad comparator rather than a newer surface-mount package. A comparator is an analog integrated circuit that compares two input voltages and produces a logic-level output indicating which input is higher. The MC3302P belongs to the comparator hierarchy, which also includes voltage comparators and differential amplifiers used in control and signal-conditioning systems. As a single-supply device, it is intended for systems where the comparator must operate from one supply rail while detecting small voltage differences within that rail. The MC3302P's four channels provide practical space savings compared with four discrete comparators. Its typical 25 nA input bias current minimizes loading on high-impedance sensing nodes, while the typical ±5.0 nA input offset current supports accurate threshold decisions near the reference voltage. The device is suited to console, automotive, and industrial applications where level detection and low-level sensing must be implemented with a familiar 14-pin through-hole footprint. Each channel compares an inverting and a non-inverting input and provides an open-collector output, allowing the outputs to be pulled up as required by the host logic and to support wired logic when several outputs are combined. The open-collector architecture provides design flexibility but requires an external pull-up resistor. The output transistor can sink current when the comparator condition is met, while the pull-up establishes the inactive high voltage. Typical uses include battery threshold detection, sensor signal conditioning, window or level comparison, memory-control interfaces, and industrial control modules. Because this is a legacy-style PDIP device, it is especially relevant to maintenance of existing equipment rather than new space-constrained designs. Designers should confirm the exact pinout and output truth table against the manufacturer documentation before modifying an existing board. The principal design consideration is supply bypassing. Place the required decoupling capacitor close to the device supply pins and return each comparator input directly to its pin rather than routing it through shared analog traces. Account for input offset and bias currents when setting very small thresholds, and use a pull-up resistor compatible with the required output rise time and available sink current. This product record combines verified manufacturer and distributor information with package, application, design, and replacement guidance. It also distinguishes exact technical data from values that require confirmation, helping engineers source MC3302P parts without treating unsupported compatibility or price claims as verified facts.

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MC3302PG

MC3302PG - 4-Channel 3-36V Comparator | onsemi

The onsemi MC3302PG is a four-channel, general-purpose comparator designed for single-supply operation across a 3 V to 36 V input range. It provides CMOS and TTL-compatible open-collector outputs, a 1 mA supply current specification, and a response time of 1.3 microseconds. The device is packaged in a 14-pin PDIP package for through-hole industrial, consumer, and automotive electronics assemblies. A comparator is an analog integrated circuit that compares two input voltages and produces a logic-level indication of their relationship. The MC3302PG belongs to the comparator hierarchy within analog ICs and interface ICs. Its four independent channels allow a single package to perform multiple threshold, level-detection, low-level-sensing, or memory-interface functions while operating from one supply rail. The primary electrical features are the wide 3 V to 36 V operating range, four general-purpose comparator channels, 1.3 microsecond response time, and 1 mA supply current. CMOS and TTL output compatibility allows the open-collector outputs to interface with a broad range of digital logic. The 14-pin PDIP package also supports conventional through-hole assembly and hand prototyping without requiring a fine-pitch surface-mount footprint. Each comparator section is intended to operate from the same single supply, making the IC suitable for systems where a positive supply rail is available but split bipolar rails are not. Open-collector outputs provide a flexible output architecture, while the common-device package simplifies inventory and reduces the number of discrete comparator components required on a board. The 1.3 microsecond response time is appropriate for threshold monitoring and control functions that do not require sub-microsecond timing. Typical uses include level detection, low-level sensing, memory applications, industrial control inputs, consumer equipment, automotive signal interfaces, and digital threshold crossings. The four-channel arrangement is particularly useful when several sensed voltages must be compared against independent references or when redundant comparator decisions are needed within one package. Designers should account for the open-collector output configuration, including pull-up requirements and pull-up resistor selection. Input common-mode range, output saturation behavior, supply-current variation, and input offset must be checked against the manufacturer datasheet for the exact operating condition. Input leads should be routed away from switching nodes and noisy return paths to prevent false comparator transitions. This product page combines the core MC3302PG electrical characteristics, same-footprint replacement options, application guidance, and practical design notes. It is intended to help engineers identify the correct package, confirm logic compatibility, and plan PCB implementation before requesting a quotation for production sourcing.

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MC3303D

MC3303D - Quad 30V 1MHz Op Amp | Texas Instruments

The Texas Instruments MC3303D is a quad general-purpose operational amplifier designed for single-supply operation, with a 30 V maximum supply rating, approximately 1 MHz unity-gain bandwidth, and a 14-pin SOIC package. The four amplifiers share a common package while providing separate differential input and output connections for independent analog signal conditioning. An operational amplifier is a voltage-feedback amplifier used to amplify, buffer, filter, compare, or reshape analog signals. Quad operational amplifiers combine four amplifier channels in one package, reducing board area and simplifying designs that need multiple analog functions. The MC3303D belongs to the broader hierarchy of operational amplifier, analog amplifier, analog IC, and semiconductor. Key verified features include four amplifier circuits, single-ended circuit configuration, a 30 V supply rating for the Texas Instruments MC3303D, and a unity-gain bandwidth of 1 MHz. The onsemi MC3303D listing additionally describes a voltage-feedback architecture, 0.6 V/µs slew rate, nominal 14 V supply, and an operating-temperature range from -40 °C to 85 °C. Because MC3303D is used by more than one manufacturer, engineers should confirm the manufacturer-specific orderable datasheet before release. The MC3303D combines four high-voltage-capable amplifiers in a 14-terminal SOIC-14 package. Its approximately 1 MHz bandwidth is suitable for general-purpose signal processing, including audio-frequency stages, control loops, sensor interfaces, and active filtering. The available verified data does not state input offset voltage, input bias current, noise density, common-mode input range, output swing, or short-circuit current for the Texas Instruments version. Typical uses include four-channel sensor conditioning, low-frequency active filters, instrumentation stages, audio preamplification, comparator-style threshold circuits, and general analog buffers. Because four independent channels are integrated, a design can also use the amplifiers for mixed functions such as gain, filtering, level shifting, and output buffering without using four separate packages. Designers should verify input common-mode range, output swing, input offset, bias current, noise, stability, and compensation requirements against the exact manufacturer datasheet. The verified web results identify different electrical details for the Texas Instruments, onsemi, and STMicroelectronics versions sharing the MC3303D suffix, so package compatibility alone does not prove specification compatibility. This page combines verified manufacturer and distributor information with practical procurement guidance, explicitly identifies unavailable electrical parameters, and distinguishes same-package drop-in candidates from broader functional equivalents. It is intended to support engineering selection without treating devices with identical suffixes from different manufacturers as automatically interchangeable.

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MC3303DG

MC3303DG - 4-Channel 1 MHz Op Amp | onsemi | 14-SOIC

The onsemi MC3303DG is a four-channel general-purpose operational amplifier with true differential inputs, 1 MHz gain-bandwidth product, and 0.6 V/us slew rate, housed in a 14-pin SOIC package. Designed for single-supply operation from 3 V to 36 V, the device also supports split-supply operation, making it suitable for industrial control, instrumentation, sensor conditioning, and general analog signal-processing systems. Each amplifier includes internal frequency compensation, low input bias current, and short-circuit protection, allowing stable operation without external compensation networks in typical closed-loop configurations. An operational amplifier is an analog integrated circuit that amplifies the voltage difference between its inverting and non-inverting inputs. In the product taxonomy, the MC3303DG belongs to the operational-amplifier and instrumentation-amplifier hierarchy, then to the broader amplifier IC and semiconductor categories. Its internally compensated architecture simplifies design by fixing the gain-bandwidth relationship while preserving a practical combination of supply flexibility, low power consumption, and general-purpose functionality. The principal electrical features include four independent amplifiers, 1 MHz gain-bandwidth product, 0.6 V/us slew rate, and 8 mV input offset voltage as listed for the industrial-temperature version. The device operates from 3 V to 36 V under a single supply, while dual-supply operation remains possible when the total supply span is adequate. A class AB output stage supports practical drive into typical feedback networks, and true differential inputs help reject common-mode signals when both inputs are biased within the common-mode range. The MC3303 architecture is intended as a cost-conscious alternative to the uA741-class quad amplifier while adding advantages for modern single-supply systems. Internal frequency compensation removes the need for a dominant-pole compensation capacitor in most closed-loop applications. Designers must still account for output swing, input common-mode range, bias current, noise, stability, and supply bypassing when using the amplifier in precision or high-frequency circuits. Typical applications include industrial control loops, transducer and sensor signal conditioning, audio preamplification, analog measurement front ends, power-supply feedback networks, and low-frequency communications equipment. Four amplifiers in one package can reduce board area in designs requiring multiple independent analog channels, although common supply routing and decoupling remain critical. The most important design practice is to place input, output, and bypass connections for short, low-impedance paths while keeping sensitive input traces away from power outputs and switching nodes. Verify the exact input and output voltage limits, bias-current behavior, load capability, and noise specifications against the manufacturer datasheet before finalizing a precision application. This page consolidates verified distributor information, package-specific alternatives, technical comparisons, and practical design guidance for engineers evaluating the MC3303DG. It emphasizes what is confirmed from supplied sources and explicitly marks unavailable electrical details rather than estimating them, supporting more reliable procurement and design decisions.

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MC3303DR

MC3303DR - Quad 30V 1MHz Operational Amplifier | Texas Instruments

The Texas Instruments MC3303DR is a quad, 30-V, 1-MHz operational amplifier packaged in a 14-pin SOIC (D). The device combines four amplifiers on one die, supports single-supply operation from 3 V to 36 V, and includes a class AB output stage, true differential inputs, internal frequency compensation, and short-circuit protection. Its four-amplifier arrangement reduces board area in instrumentation, buffering, and general-purpose analog signal-processing circuits. An operational amplifier, or op amp, is a high-gain differential amplifier that uses feedback to control gain, impedance, bandwidth, and output behavior. The MC3303 belongs to the general-purpose amplifier hierarchy: operational amplifier, voltage-feedback amplifier, analog amplifier, and integrated circuit. Its low-power quad configuration is intended for cost-sensitive designs requiring several independent amplifier channels on a compact PCB footprint. The primary performance characteristics include a 1-MHz gain-bandwidth product, a 30-V maximum operating rating in the product designation, and operation from a 3-V to 36-V single supply. Split-supply operation is also possible when the total supply range is respected. A class AB output stage supports linear operation, while true differential inputs provide the conventional non-inverting and inverting input arrangement expected by general-purpose amplifier designs. Internal frequency compensation removes the need for an external dominant compensation capacitor in ordinary closed-loop applications. Short-circuit protection improves robustness when an output is driven into a low-impedance load. These features simplify implementation, but the amplifier still requires careful common-mode, output-swing, stability, and supply-decoupling analysis for each specific circuit. Typical uses include four-channel sensor conditioning, instrumentation buffering, low-frequency active filtering, general signal amplification, and industrial control interfaces. The MC3303DR is particularly appropriate when a quad low-power package, wide single-supply range, and moderate 1-MHz bandwidth are more important than rail-to-rail input or output operation. During PCB design, place input, output, and supply bypass components close to their associated pins. Keep sensitive input traces away from switching nodes and high-current return paths. Verify output-voltage headroom, common-mode range, load stability, and power dissipation across temperature before treating the nominal supply limits as usable design limits. This product data combines manufacturer information, package and lifecycle details, practical design guidance, and same-footprint replacement options. It also identifies the electrical checks engineers should perform before replacing the MC3303DR in an existing instrumentation or control design.

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MC3303DT

MC3303DT - 1MHz Low-Power Quad Op Amp | STMicroelectronics

STMicroelectronics MC3303DT is a low-power, quad bipolar operational amplifier featuring four amplifiers, true differential inputs, internally compensated operation, and a 1 MHz gain-bandwidth product. The device operates from single +3 V to +36 V supplies or from dual ±18 V supplies and is packaged in a 14-pin SOIC. Each amplifier is designed for general-purpose signal conditioning using its Class AB output stage and short-circuit-protected outputs. An operational amplifier is a voltage-gain element that compares its inverting and non-inverting inputs and drives its output toward a voltage representing the difference between them. The quad configuration belongs to the operational-amplifier family within analog integrated circuits and amplifier ICs. MC3303DT provides four independent amplifiers in one package, reducing board area compared with four single or dual amplifier packages when a system requires four similar signal-processing channels. The principal features include a 1 MHz gain-bandwidth product, operation from 3 V to 36 V, low input bias current of 500 nA maximum, internal frequency compensation, and short-circuit-protected outputs. Its Class AB output stage is intended to provide a practical compromise between output drive capability and power dissipation compared with a pure Class A stage. The low-power operating point makes the device suitable for industrial control, instrumentation, sensor interfaces, and general analog signal-conditioning systems. MC3303DT differs from the closely related UA741-family architecture through its improved suitability for single-supply operation. It accepts a positive supply as high as 36 V or dual supplies of ±18 V, allowing operation from industrial 24 V rails when the total supply and input/output signal limits are observed. Internally compensated amplifiers simplify closed-loop gain selections when unity-gain stability is appropriate for the selected circuit and load. Typical uses include four-channel sensor amplification, differential input conditioning, active filtering, comparator-style threshold functions, and general instrumentation. The four amplifiers may also process separate channels or be combined in wider-bandwidth or higher-gain configurations where the resulting feedback network remains stable. Designers should account for input common-mode range, output swing, noise, and load capability at their intended supply voltage. A key design consideration is power: each amplifier contributes to total quiescent current, so four channels require more supply current than one or two channels. Input and output stability should be verified with the intended source impedance, load, supply decoupling, and feedback network. Input and output pin functions are published in the manufacturer datasheet, which should be checked against the final 14-pin PCB footprint. This page combines verified distributor data, manufacturer-document references, application guidance, package details, and same-footprint replacement considerations. It also identifies where current sourcing information remains unavailable so engineers can distinguish documented facts from data requiring confirmation before production release.

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MC3303N

MC3303N - Quad 30V 1MHz Op Amp | Texas Instruments

The Texas Instruments MC3303N is a quad, low-power bipolar operational amplifier specified for a 30 V maximum supply and 1 MHz unity-gain bandwidth, housed in a 14-pin PDIP package. It provides four amplifiers in one package for general-purpose signal conditioning, transducer interfaces, analog summing, filtering, and feedback-control circuits. An operational amplifier is a voltage-amplified differential-input device whose external feedback network determines its behavior. MC3303 belongs to the operational-amplifier hierarchy: quad low-power op amp, bipolar linear amplifier, analog signal-conditioning IC, and semiconductor. Four independent amplifiers in one 14-pin package reduce board area compared with four separate single or dual amplifier packages, although users must preserve adequate spacing and decoupling for stable low-noise operation. Verified manufacturer information identifies the MC3303N as a standard general-purpose four-circuit amplifier in a 14-pin PDIP package, with a 30 V supply rating and 1 MHz gain-bandwidth product. The family is intended for single-supply or split-supply operation when the electrical limits specified by the manufacturer are met. Because the target uses a through-hole PDIP package, it also supports prototype repair and conventional leaded-board assembly rather than requiring a fine-pitch SMT footprint. The integrated amplifier count makes the device useful when a board needs multiple similar signal paths. Typical uses include four sensor channels, four analog-control loops, dual-channel buffering with spare amplifier capacity, or small active-filter sections. Designers should check common-mode range, output swing, input bias behavior, supply current, noise, slew rate, stability, and temperature limits against the manufacturer datasheet before fixing the operating conditions. The MC3303N should be placed near the supported decoupling network, with power and ground return paths arranged to minimize resistance and switching noise. Input and feedback components should be positioned to reduce parasitic capacitance at the high-frequency nodes. Do not infer exact bias-current, noise, slew-rate, common-mode, or temperature values from the search summaries; those parameters require the official manufacturer datasheet before release to production. This page combines verified product identity, source links, package information, application guidance, and explicitly marked data gaps. The comparison section is limited to candidates that the provided evidence supports as MC3303N equivalents; any claimed drop-in substitution must still be checked against pin assignment, electrical limits, supply requirements, and the intended operating conditions.

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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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Subcategorias

Produtos (39.000+)

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MC3303D - Quad 30V 1MHz Op Amp | Texas Instruments

MC3303DG - 4-Channel 1 MHz Op Amp | onsemi | 14-SOIC

MC3303DR - Quad 30V 1MHz Operational Amplifier | Texas Instruments

MC3303DT - 1MHz Low-Power Quad Op Amp | STMicroelectronics

MC3303N - Quad 30V 1MHz Op Amp | Texas Instruments

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