Verstärker-ICs
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LM339D - 4-Comparator Open-Collector IC | Texas Instruments
The Texas Instruments LM339D is a general-purpose quad differential voltage comparator containing four independent comparator channels, open-collector outputs, and operation from a single positive supply in a 14-pin SOIC package. The verified manufacturer data identifies a maximum rating up to 38 V, input offset voltage of 0.37 mV, input bias current of 3.5 nA, supply current of 200 µA per comparator, and response time of 1 µsec for the related LM339 family. These values make the device suitable for level detection, low-level sensing, memory applications, and general industrial threshold circuits. A voltage comparator is an analog comparator that evaluates two input voltages and changes its output state according to their relationship. The LM339 belongs to the comparator, analog IC, and signal-conditioning hierarchy. Unlike an op-amp configured for linear amplification, a comparator is intended for open-loop decision making. Its open-collector output requires an external pull-up resistor and can be wired with multiple comparator outputs when the electrical conditions permit. The four independent channels allow one package to perform several threshold decisions. Open-collector outputs can interface with TTL, MOS, and CMOS-compatible circuits according to the family documentation, while the wide supply capability supports industrial and automotive-style environments. The low input bias current is useful when the comparator senses high-impedance sources, although input offset, common-mode range, output saturation, and supply limits must still be checked in the complete design. The LM339 family is supported by TI’s application guidance for TL331, LM339, and LM393 devices, which emphasizes correct use of open-collector outputs, pull-up networks, input protection, and supply bypassing. The package and pin arrangement should be verified against the selected manufacturer’s datasheet before layout release, especially when replacing a part sourced from another manufacturer. Typical applications include sensor threshold detection, battery or power-system monitoring, window comparator circuits, logic-level translation, relay or solenoid drive interfaces, and industrial control inputs. An external pull-up resistor is normally placed from each output to the downstream logic supply so that the open-collector transistor can pull the line low and release it high. The main design consideration is that an open-collector output is not a push-pull logic output. Choose the pull-up voltage and resistor for the receiving device, verify output sink current, and account for the positive logic level at the receiver input. Place bypass capacitors close to the supply pins and keep sensitive input traces away from output and switching-current paths. This product page consolidates verified distributor identity, manufacturer family specifications, package information, sourcing links, and engineering-oriented usage guidance. Exact pricing, stock, alternative parameter tables, and manufacturer-specific pin details remain dependent on the cited source pages and are not inferred where the supplied evidence is incomplete.
LM339DR - Quad Differential Comparator, Open-Collector | TI
The Texas Instruments LM339DR is a quad differential comparator that integrates four independent precision voltage comparators into a single 14-pin SOIC package. The device operates from a single power supply over a wide voltage range and is well-suited for use in voltage-level detection, threshold detection, and analog signal conditioning circuits. The LM339DR outputs are open-collector and require a pull-up resistor to a supply ranging from 5V to 36V (or higher), enabling level-shifting between incompatible logic domains. What is an analog comparator? An analog comparator is an active circuit element that compares two input voltages and produces a binary output based on which is larger. Comparators sit alongside op-amps and ADCs in the signal-chain hierarchy: op-amp (linear amplification) -> comparator (1-bit decision) -> Schmitt trigger (hysteresis-based decision). The LM339 family sits in the general-purpose comparator category, optimized for cost and versatility rather than speed or precision. Key features of the LM339DR include a typical input offset voltage of 2 mV, a wide common-mode input voltage range that includes ground, a differential input voltage range equal to the maximum-rated supply voltage, and an operating supply range of 2V to 36V. The device draws a low supply current of approximately 1 mA (200 uA per comparator in the newer LM339B), and outputs are compatible with TTL, MOS, and CMOS logic families. Operating temperature range spans 0C to +70C in the standard commercial grade, with automotive-grade LM2901 variants covering -40C to +125C. The LM339DR architecture uses a bipolar transistor design with Darlington NPN output stages driving open-collector transistors. This architecture provides high input impedance and stable switching thresholds, though response time is in the microsecond range rather than the nanosecond range of high-speed comparators. The device is internally compensated and requires no external frequency-compensation components. Typical applications include overvoltage/undervoltage protection circuits, zero-crossing detectors, oscillator circuits, window comparators, and sensor-signal level translation. Industrial uses include battery chargers, switch-mode power supply feedback loops, and motor-control interface circuits. Designers should note that open-collector outputs require external pull-up resistors and that output transition time is dominated by the RC time constant of the pull-up resistor and load capacitance. For high-speed applications, choose a comparator with push-pull outputs such as the TL331 family. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the standalone TI datasheet, providing engineers a single-point comparison resource.
LM339M - Quad Open-Collector Comparator | Texas Instruments
The Texas Instruments LM339M is a low-power, low-offset-voltage quad comparator containing four independent voltage comparators in a 14-pin SOIC package. It supports single or dual supplies, operates from 2 V to 36 V, accepts input voltages up to ±18 V relative to the supply arrangement, and provides open-collector outputs. The verified data identifies a response time of 1.3 µs, typical supply current drain of 800 µA, and typical input bias current of 25 nA. A comparator is an analog integrated circuit that compares two input voltages and produces a digital logic state indicating which input is higher. The LM339 belongs to the broader hierarchy of analog comparator ICs, voltage-detection devices, and general-purpose signal-conditioning components. Its four independent channels allow one package to implement multiple threshold, overvoltage, undervoltage, window, or sorting decisions while sharing a common supply architecture. Key features include four open-collector outputs, low supply current, low input bias current, low-offset operation, and an input common-mode range that includes ground on single-supply systems. Open-collector outputs require an external pull-up resistor and can support wired logic, connector interfaces, level translation, or multiple devices sharing a bus when the electrical conditions are appropriate. Unlike a push-pull output, this architecture provides useful flexibility at the cost of requiring an external pull-up and having a slower rising edge. The LM339M can operate from 2 V to 36 V, while the verified distributor listing identifies SOIC-14 packaging and a 0 °C to 70 °C temperature grade for the listed Texas Instruments LM339M variant. The four comparators share supply pins but have independent noninverting and inverting inputs. Pin assignment and input polarity must be verified against the manufacturer datasheet before layout, especially because the M suffix identifies the package configuration rather than a different comparator function. Typical applications include DC overvoltage and undervoltage detection, battery threshold monitoring, industrial control interfaces, sensor conditioning, open-collector alarm signaling, and four-channel comparator banks in embedded systems. A pull-up resistor on each output is normally required. Inputs must remain within the device’s common-mode limits, and supply bypass should follow the manufacturer’s recommended layout practice to reduce susceptibility to switching noise and lead instability. This page consolidates the verified LM339M specifications, source links, packaging information, and application-oriented design guidance. It deliberately separates confirmed values from unspecified electrical details; parameters not present in the supplied data are not inferred here.
LM339N - Quad Open-Collector Comparator | Texas Instruments
The Texas Instruments LM339N is a low-power, low-offset quad differential comparator containing four independent comparator channels in a 14-pin PDIP package. The verified source identifies the device as a general-purpose comparator with open-collector outputs, a 2 V to 36 V supply range, and approximately 1.3 microsecond response time. Each channel can compare two input voltages, while its open-collector output requires an external pull-up resistor for a usable logic-high level. A quad comparator is an analog comparator integrated circuit used to determine whether an input voltage is higher or lower than a reference voltage. The comparator function belongs to the broader analog and mixed-signal semiconductor hierarchy: comparator -> differential comparator -> analog IC -> semiconductor. LM339N provides four channels in one package, reducing component count when a system needs several independent threshold, sorting, overvoltage, or sensing decisions. The main verified characteristics are four independent comparator sections, open-collector outputs, a 14-pin PDIP package, and a wide operating supply range of 2 V to 36 V. The manufacturer describes the LM339-N family as a low-power, low-offset voltage quad comparator. Because the outputs are open collector, the output stage can sink current but does not actively drive a high voltage; an external resistor connects the output node to the desired positive supply. This arrangement supports wired logic, relay or lamp drive, and level translation when the pull-up voltage is selected appropriately. The open-collector architecture also provides a useful benefit in multi-comparator systems: several outputs can be connected to a common pull-up node when the application intentionally requires wired-AND behavior. The design must account for the voltage and current limits of every connected output and for the sink-current capability of each comparator. The external pull-up resistor also affects rise time, so a lower resistance can improve speed while increasing current and power dissipation. Typical uses include DC threshold detection, battery and supply monitoring, window comparison, industrial control logic, sensor conditioning, overvoltage indication, and general-purpose analog decision circuits. The four channels can be used for independent comparisons or arranged as a multi-level voltage detector. Because input and output details beyond the verified source were not supplied, exact input common-mode limits, output sink-current limits, input offset, response-time conditions, and temperature ranges should be confirmed in the manufacturer datasheet before production release. The LM339N is primarily a through-hole general-purpose comparator rather than a high-speed logic device. Its strength is simple wide-supply operation with four channels and open-collector outputs. A PCB design should route comparator inputs away from switching nodes, provide a stable reference, use a defined ground return, and choose pull-up resistors according to the required logic voltage, rise time, and current budget. This page combines verified distributor and manufacturer information with application-oriented design guidance while avoiding unsupported numeric claims.
LM358AD - Dual Low Power Op-Amp, 1.1MHz, SOIC-8 | STMicroelectronics
The STMicroelectronics LM358AD is a low-power dual operational amplifier consisting of two independent, high-gain, internally frequency-compensated op-amps designed to operate from a single power supply across a wide voltage range. Housed in an 8-pin SOIC package, the LM358AD delivers a unity-gain bandwidth of approximately 1.1 MHz, a slew rate of 0.6 V/µs, and supports supply voltages from 3V to 30V single-supply or ±1.5V to ±16V dual-supply. The device is widely used in cost-sensitive analog front-ends where single-supply operation and low quiescent current are essential design constraints. An operational amplifier (op-amp) is a high-gain, DC-coupled electronic voltage amplifier with differential inputs and a single-ended output. Within the broader power management and signal conditioning hierarchy, the LM358AD belongs to the general-purpose op-amp category, sitting between precision instrumentation amplifiers (high accuracy, low noise) and high-speed amplifiers (wide bandwidth, fast slew). Op-amps form the building blocks of analog signal chains: filters, comparators, integrators, transducers, sensor signal conditioners, and active rectifiers. The LM358 family specifically targets single-supply 5V/12V/24V systems that cannot tolerate the negative rail required by legacy op-amps like the LM741. Key features include: 1.1 MHz gain-bandwidth product, 0.6 V/µs slew rate, input common-mode range that includes ground (enabling true single-supply sensing near 0V), low input bias current, internal frequency compensation (no external capacitor required), and ESD protection on the inputs. The output stage can swing to within a few hundred millivolts of the negative rail, although it does not reach the positive rail — meaning the part is not rail-to-rail but is sufficient for most single-supply transducer interfaces. Technically, the LM358AD uses a bipolar junction transistor (BJT) input stage rather than JFET or CMOS, which trades higher input bias current (~45 nA typical) for extremely low input offset voltage drift and predictable behavior across temperature. The two amplifiers share only the power pins; their inputs and outputs are fully independent, allowing asymmetric configurations such as one channel as a comparator and the other as a gain stage. Typical applications include battery-powered sensor signal conditioning, transducer amplifiers, DC gain blocks, active filters, integrators, comparators with hysteresis, and 4–20 mA current loop transmitters. Industrial designs frequently use the LM358AD in 24V PLC analog input modules, while consumer designs use it for white-goods sensor interfaces and IoT battery nodes. When designing with this device, remember that the output cannot swing to the positive rail — typically VOH stops around VCC−1.5V at 10 mA load. Place a 100 nF bypass capacitor close to VCC and ground, and use a feedback resistor of at least 10 kΩ to limit output stage loading. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
LM358ADDR - Dual 30V 700kHz Op Amp | Texas Instruments
The LM358ADDR is a dual operational amplifier from Texas Instruments, part of the industry-standard LM358 family. It operates from a single supply of 3V to 30V or dual supplies of +/-1.5V to +/-15V, with a typical supply current of 500uA per amplifier, packaged in an 8-pin SOIC (D) surface-mount package delivered in tape and reel. An operational amplifier (op amp) is a high-gain voltage amplifier with differential inputs and a single-ended output. It is a fundamental building block of analog electronics used in signal conditioning, filtering, and mathematical operations. The LM358 is a dual op amp containing two independent amplifiers in one package, offering design flexibility and space savings. It belongs to the broader category of linear integrated circuits (amplifier ICs) used across power management, sensor interfaces, and audio processing. Key features include a common-mode input voltage range that extends to ground, enabling true single-supply operation with inputs referenced to ground. The gain-bandwidth product is 700kHz with a 0.3V/us slew rate, and maximum input offset voltage is 3mV. The operating temperature range is 0C to 70C for commercial applications. The device is RoHS compliant and lead-free. Technically, the LM358 uses a bipolar process with a class-AB output stage for low output distortion. The PNP input pair enables the input common-mode range to include ground. The output swings close to but not rail-to-rail, a consideration for maximum-swing designs. Internal frequency compensation ensures unity-gain stability without external components. Typical applications include transducer amplifiers, DC gain blocks, active filters, battery chargers, power supply control, and motor control loops. The dual configuration handles multiple signal paths in a compact footprint, reducing board space and component count. When designing with the LM358ADDR, ensure input voltage does not exceed the supply rails to avoid phase reversal, decouple supply pins with 0.1uF capacitors, and account for output swing typically 1.5V from the rails. Pricing as of 2026-08-29 starts near $0.0541 at LCSC.
LM358D - Dual 700kHz General Purpose Op Amp | Texas Instruments (Tape & Reel)
The LM358D is a dual operational amplifier from Texas Instruments in an 8-pin SOIC (D) surface-mount package. It operates from a single supply of 3V to 32V or dual supplies of ±1.5V to ±16V, with a gain bandwidth product of 700 kHz and a slew rate of 0.3 V/µs. This industry-standard, low-cost amplifier serves a vast range of general-purpose analog functions. An operational amplifier (op amp) is a high-gain differential-input, single-ended-output voltage amplifier and one of the most fundamental building blocks in analog electronics. General-purpose op amps like the LM358 prioritize versatility, low cost, and ease of use over precision or bandwidth. The LM358 is the dual version of the LM321 single amplifier and the two-amp counterpart of the quad LM324. Key features include a common-mode input voltage range that extends to ground, enabling direct sensing near ground in single-supply systems; low supply current of 0.7 mA typ, independent of supply voltage; internal frequency compensation for unity-gain stability; and short-circuit protected outputs. These characteristics suit battery-powered and cost-sensitive designs. Technically, the LM358 uses a bipolar process with a class-AB output stage that can drive loads as low as 2 kΩ with a large output swing. The commercial temperature grade is 0°C to +70°C. Input bias and offset currents are low, and the two internal amplifiers are well matched, sharing the same supply and bias circuitry. Typical applications include transducer amplifier front ends, DC gain blocks, active RC filters, voltage comparators and level shifters, power-supply feedback loops, and portable or industrial control electronics. The SOIC-8 package supports automated SMT assembly and reflow. Design considerations: decouple V+ to GND with a 0.1 µF ceramic capacitor close to pin 8, and respect output swing limits near the rails (output saturates roughly 1.5V below V+ at moderate loads). For higher bandwidth or lower noise, consider the pin-compatible TLV9152 or TL072. Pricing as of 2026-08-30 starts around $0.05 at volume from distributors such as LCSC.
LM358DR - Dual 700kHz General Purpose Op Amp | Texas Instruments
The LM358DR is a dual operational amplifier from Texas Instruments in an 8-pin SOIC (D) surface-mount package. It operates from a single supply of 3V to 32V or dual supplies of ±1.5V to ±16V, with a gain bandwidth product of 700 kHz and a slew rate of 0.3 V/µs. This industry-standard, low-cost amplifier serves a vast range of general-purpose analog functions. An operational amplifier (op amp) is a high-gain differential-input, single-ended-output voltage amplifier and one of the most fundamental building blocks in analog electronics. General-purpose op amps like the LM358 prioritize versatility, low cost, and ease of use over precision or bandwidth. The LM358 is the dual version of the LM321 single amplifier and the two-amp counterpart of the quad LM324. Key features include a common-mode input voltage range that extends to ground, enabling direct sensing near ground in single-supply systems; low supply current of 0.7 mA typ, independent of supply voltage; internal frequency compensation for unity-gain stability; and short-circuit protected outputs. These characteristics suit battery-powered and cost-sensitive designs. Technically, the LM358 uses a bipolar process with a class-AB output stage that can drive loads as low as 2 kΩ with a large output swing. The commercial temperature grade is 0°C to +70°C. Input bias and offset currents are low, and the two internal amplifiers are well matched, sharing the same supply and bias circuitry. Typical applications include transducer amplifier front ends, DC gain blocks, active RC filters, voltage comparators and level shifters, power-supply feedback loops, and portable or industrial control electronics. The SOIC-8 package supports automated SMT assembly and reflow. Design considerations: decouple V+ to GND with a 0.1 µF ceramic capacitor close to pin 8, and respect output swing limits near the rails (output saturates roughly 1.5V below V+ at moderate loads). For higher bandwidth or lower noise, consider the pin-compatible TLV9152 or TL072. Pricing as of 2026-08-30 starts around $0.05 at volume from distributors such as LCSC.
LM358DT - Dual Low Power Op Amp | STMicroelectronics | SOIC-8
The LM358DT is a dual operational amplifier from STMicroelectronics, designed for low-power, general-purpose applications. It operates from a single or split power supply ranging from 3V to 32V (or ±1.5V to ±16V), with a typical quiescent current of 350 µA per amplifier. The device is housed in an 8-pin SOIC (SO-8) package, making it suitable for space-constrained PCB designs. Data verified as of 2026-08-05. An operational amplifier (op-amp) is a high-gain voltage amplifier with differential inputs and a single-ended output. It is a fundamental building block in analog electronics, used for signal conditioning, filtering, and mathematical operations. The LM358 is part of the general-purpose op-amp family, which includes the LM324 (quad version) and LM393 (comparator). These devices are widely used in industrial, automotive, and consumer electronics due to their low cost, ease of use, and wide supply voltage range. Key features of the LM358DT include a wide supply voltage range (3V to 32V), low quiescent current (350 µA per amplifier), and a common-mode input voltage range that includes ground, allowing single-supply operation. The output stage can sink and source current, and the device is short-circuit protected. The LM358DT also features a typical input offset voltage of 2 mV and a gain-bandwidth product of 1.1 MHz, making it suitable for low-frequency signal processing. The LM358DT uses a bipolar transistor architecture with a class-AB output stage, providing low crossover distortion. The input stage is a PNP differential pair, which allows the input common-mode range to extend to the negative supply rail (ground in single-supply operation). This design enables direct sensing of signals near ground, a key advantage in battery-powered and single-supply systems. Typical applications include transducer amplifiers, DC gain blocks, active filters, and signal conditioning in industrial control systems. The LM358DT is also used in portable instrumentation, power supply monitoring, and automotive sensor interfaces. Its low power consumption makes it ideal for battery-operated devices. When designing with the LM358DT, ensure that the input common-mode voltage does not exceed the specified range, and provide adequate decoupling capacitors on the power supply pins. The output can drive loads down to 2 kΩ, but for heavier loads, consider using a buffer stage. The device is stable with capacitive loads up to 500 pF, but for larger loads, an external compensation network may be required. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the STMicroelectronics datasheet, providing engineers with a comprehensive resource for selecting and using the LM358DT.
LM358M - Dual 32 V, 1 MHz Operational Amplifier | Texas Instruments
Texas Instruments LM358M is a dual, general-purpose operational amplifier with two independent channels, a 32 V maximum supply rating, 1 MHz gain-bandwidth product, and an 8-pin SOIC package. The device is designed for single-supply operation and is identified by distributor data as a standard dual operational amplifier in the SOIC-8 format. An operational amplifier is an analog signal-conditioning semiconductor device that uses high open-loop gain to amplify voltage differences. LM358M combines two amplifier channels in one package, allowing one IC to implement functions such as buffers, transimpedance stages, filters, comparators, sensor interfaces, and audio or industrial control blocks. Its dual-channel architecture can also reduce board area when both channels perform similar signal tasks. The verified listing specifies a 32 V supply-related operating class and 1 MHz gain-bandwidth product for the LM358M device. The supplied datasheet search results describe the LM358 family as internally frequency compensated for unity gain, with a large DC voltage gain of 100 dB, a wide power-supply range of 3 V to 32 V for LM358/LM358A, and an input common-mode voltage range that includes ground. These features make the part suitable for designs where the input signal is referenced to the supply ground. LM358M is packaged as an 8-SOIC, making it a practical surface-mount choice for compact analog boards. The dual amplifier organization can simplify routing when two related channels are required, while the general-purpose architecture supports broad industrial, consumer, instrumentation, and embedded-control applications. The SOIC package also supports conventional PCB assembly and inspection processes used for many analog signal-chain products. Typical applications include current sensing with a shunt amplifier, sensor-signal conditioning, active filtering, audio preamplification, comparator-style threshold detection, and low-frequency control loops. Because the verified data does not provide a complete numerical specification set, parameters such as exact input offset voltage, output-current limits, slew rate, common-mode limits, noise density, and temperature limits should be checked in the manufacturer datasheet before production release. When laying out LM358M, keep input and feedback traces short, place decoupling capacitors close to the supply pins, and avoid routing high-current return paths through sensitive analog nodes. For single-supply designs, confirm that the input common-mode range includes the signal range and that the load does not exceed the output-current capability stated in the selected device datasheet. This page consolidates verified distributor specifications, source links, package information, and practical design guidance.
LM358N - Dual 32 V 1 MHz Op Amp | DIP-8 Amplifier
The Texas Instruments LM358N is a dual, general-purpose operational amplifier with two independent amplifiers, a 32 V rating, 1 MHz typical bandwidth, and an 8-pin through-hole DIP package. It is designed for single-supply operation and is widely used where low cost, moderate precision, and straightforward dual-amplifier integration are more important than rail-to-rail input or output performance. An operational amplifier is an amplifier IC that uses high open-loop gain to amplify the difference between its non-inverting and inverting inputs. In feedback configurations, the LM358N can provide voltage gain, buffering, filtering, summing, and current-control functions. It belongs to the hierarchy of operational amplifier, analog amplifier, analog IC, and semiconductor. The verified product information identifies the LM358-N as a dual, 32 V, 1 MHz op amp. The LM358N package is listed by distributors as an 8-pin mini-DIP or 8-pin PDIP package, depending on the manufacturer source. Because the supplied data does not include every electrical limit, several detailed parameters remain marked as data-needed rather than inferred. Each internal amplifier is designed for general-purpose signal conditioning. The device is suitable for industrial control, sensor interfaces, audio and communication circuits, power-control loops, transducers, and low-frequency analog signal chains. Its dual architecture reduces the number of IC packages required when two independent amplifier functions are needed. The most important design consideration is supply and input/output range. The 32 V maximum device rating does not mean every circuit should operate at 32 V. Designers must verify the selected manufacturer version, common-mode range, output swing, input bias behavior, noise, slew rate, and thermal limits before finalizing a design. The verified sources do not provide a complete, unified parameter table for this page. This page combines the verified manufacturer and distributor references, package references, and cross-reference search results with practical engineering guidance. It is intended to help engineers locate the datasheet, assess compatibility, and plan a validation review before purchasing or substituting LM358N.
LM358QDRQ1 - Automotive Dual 1MHz Op-Amp SOIC-8 | Texas Instruments
The Texas Instruments LM358QDRQ1 is an automotive-grade, dual general-purpose operational amplifier qualified to AEC-Q100, delivered in an 8-pin SOIC (0.154 inch, 3.90 mm width) package on tape and reel. Each of the two amplifier channels offers a gain bandwidth product of approximately 1 MHz with rail-friendly output swing suited to single-supply operation, making it a workhorse signal-conditioning amplifier for 12V automotive and 5V industrial systems. An operational amplifier (op-amp) is a high-gain voltage amplifier with differential inputs and a single-ended output; within the component hierarchy it belongs to the amplifier IC family, under integrated circuits, and is a core building block of analog signal chains. Dual op-amps such as the LM358-Q1 integrate two independent channels in one package, halving board area versus two single amplifiers while sharing supply rails. Key features include two independent amplifier circuits, a 1 MHz class gain bandwidth, low input offset suitable for general-purpose sensing, operation from single or dual supplies, and AEC-Q100 automotive qualification with temperature grading that supports harsh under-hood environments. The wide supply range allows direct interfacing with battery-backed rails and regulated 5V logic domains. Architecturally, the LM358-Q1 family traces to the classic LM358 bipolar design updated for automotive quality systems, with TI manufacturing controls per its automotive flow; the related LMV358-Q1 variant adds rail-to-rail output for low-voltage rails per the LMV321-Q1/LMV358-Q1/LMV324-Q1 datasheet. Typical applications include automotive sensor signal conditioning, current-sense amplification front-ends, active filters, comparators and level shifters, and battery-management monitoring stages in vehicle ECUs and industrial controllers. Design tip: with a 1 MHz GBW, keep closed-loop gains modest (10x or below) to preserve bandwidth and phase margin; check the output swing versus load, since the classic LM358 output does not reach the positive rail.
LM3886TF - 68W Mono Class-AB Audio Amplifier w/ Mute | Texas Instruments
The Texas Instruments LM3886TF is a high-performance 68W continuous-average mono audio power amplifier with mute, housed in an 11-pin TO-220-11 Isolated (KC) through-hole package with an isolated tab. Operating from a single supply of 20V to 94V (or split ±10V to ±47V), the LM3886TF delivers 68W into 4Ω and 38W into 8Ω at 0.1% THD+N across the 20Hz–20kHz audio band, while the Class-AB topology preserves the low crossover distortion audiophile-grade designers expect from the Overture series. The device also includes a dedicated mute pin, SPiKe protection (short-circuit, thermal, over-voltage, under-voltage), and self-peak instantaneous temperature (°C) limiting. A Class-AB audio power amplifier is a linear amplifier topology that biases the output stage with a small quiescent current so both transistors conduct at the zero-crossing point, eliminating the crossover distortion of pure Class-B designs while still achieving high efficiency. Within the broader signal-chain taxonomy, the LM3886TF sits as a power-output stage downstream of a pre-amplifier and DAC/ADC, and belongs to the audio amplifier IC family, itself a sub-category of amplifier ICs (signal conditioning > amplifiers > audio amplifiers > power amplifier ICs). The Overture — LM3886 — series is TI's flagship monolithic hi-fi amplifier line. Key features of the LM3886TF include 0.1% THD+N at full output, 92dB minimum signal-to-noise ratio, 4Ω to 8Ω stable load drive, internal gain of 26dB (user adjustable with two external resistors), and a wide 20V–C to +85C excursion for the mute pin. The TO-220-11 isolated package provides 170°C/W maximum power dissipation. The Overture series signal-to-noise ratio minimum is a key differentiator over competing monolithic audio ICs. Typical applications include high-power mono subwoofer amplifiers, studio reference monitors, professional PA amplifiers, guitar combo amplifiers, and integrated stereo amplifiers (one LM3886TF per channel). The mute control pin allows use with a microcontroller or DSP interface to enable sequential power-up and standby control. When designing with the LM3886TF, ensure adequate heat-sinking—the isolated tab simplifies mounting on a chassis-coupled heat sink without requiring an insulating thermal pad (though one is optional). Use a low-impedance ground return, place the input RC network close to the pins, and observe the 94V absolute-maximum supply to avoid SPiKe protection tripping. The mute pin must be either driven high (>90%) or pulled low (<10% static) for proper operation—do not leave it floating or noise above 90 dB SNR will be compromised.
LM3886TF/NOPB - 68W Class-AB Audio Power Amplifier | TI
The Texas Instruments LM3886TF/NOPB is a high-performance 68W mono Class-AB audio power amplifier with mute, housed in an 11-pin TO-220 (NDA) isolated package. The device delivers 68W continuous average power into a 4 ohm load and 38W into 8 ohm with 0.1% THD+N across the 20 Hz to 20 kHz audio band, from a single supply of 20V to 94V. The TF suffix denotes a fully-isolated TO-220 leadform, while the NOPB suffix indicates lead-free / RoHS compliance. An audio power amplifier is the final analog stage that converts a low-level line-level input into a high-current, low-impedance signal capable of driving a loudspeaker. Class-AB topology blends the low conduction losses of Class-B with the low crossover distortion of Class-A, giving a compromise of efficiency and linearity that has dominated hi-fi amplifier design for decades. The LM3886 sits in the broader power management and amplifier IC hierarchy: audio amplifier -> Class-AB amplifier -> linear power amplifier -> analog output stage. Its self-peak instantaneous temperature (SPiKe) protection is a hallmark of the Overture series. Key specifications include 92 dB minimum open-loop gain, 0.03% typical THD+N at 1 kHz into 4 ohm, a slew rate of 19 V/us typical, and an operating temperature range of 0C to +70C. The mute function is logic-level controlled and the device includes internal current limiting and thermal shutdown. The fully-isolated TO-220 package permits direct mounting to a heatsink without an additional insulator pad, simplifying mechanical assembly. The bipolar output stage uses TI's SPiKe protection circuit, which provides dynamic, cycle-by-cycle current limiting as well as thermal shutdown. This yields a robust amplifier that tolerates output short circuits, reactive loads, and thermal overloads without destructive failure, making the LM3886 a long-standing favorite in DIY audiophile, subwoofer, and powered-monitor designs. Typical applications include powered subwoofers, home-theater amplifiers, professional powered monitors, guitar amplifiers, and high-fidelity integrated stereo amplifiers. The wide 20-94V supply range also makes it suitable for automotive 12V/24V bus and industrial audio systems when paired with a suitable boost converter. When designing with the LM3886, use a substantial heatsink rated for at least 40W continuous dissipation. Place the mute pull-down and 100k input resistors close to the IN+ pin to minimize noise pickup, and use 0.1 uF / 100 nF supply bypass capacitors within 1 cm of the V+ and V- pins. This page synthesizes distributor pricing, drop-in alternatives such as the LM3886T/NOPB and LM2876TF, and practical thermal design notes not found in the manufacturer datasheet itself, giving the engineer a single-page reference for sourcing and design.
LM393D - Dual Differential Comparator, 36V, Open-Collector SOIC-8 | Texas Instruments (Tape & Reel)
The Texas Instruments LM393D is a dual differential comparator integrating two independent precision comparators on a single monolithic die, housed in an 8-pin SOIC surface-mount package with the industry-standard LM393 pinout. The device operates from a single supply of 2V to 36V or from split dual supplies of plus/minus 1V to plus/minus 18V, and features an open-collector output stage that supports rail-to-rail output swing through an external pull-up resistor. A comparator is an analog building block that compares two input voltages and drives its output to indicate which is greater. Within the component taxonomy, the LM393 belongs to the general-purpose voltage comparator family, sitting as a faster-switching cousin of the operational amplifier optimized for saturated logic-level output rather than linear amplification. It belongs to the signal-conditioning and power-management hierarchy, alongside op-amps, voltage references, and supervisors. Key features include a quiescent supply current of approximately 0.4 mA per comparator that is largely independent of supply voltage, a typical input offset voltage of 1 mV (improved to 0.37 mV on the LM393B revision), and a wide common-mode input range that includes ground (V-), enabling true single-supply ground-sensing. The open-collector output structure allows wired-OR logic and direct interfacing to TTL, CMOS, or any logic family by tying the pull-up to that family's supply rail up to 36V, independent of the comparator's own VCC. The LM393D is built on TI's mature junction-isolated bipolar process with a PNP input stage that gives it the low-input-bias-current robustness expected of a decades-old industry workhorse. Multiple second-source manufacturers including ROHM Semiconductor, STMicroelectronics, ON Semiconductor, and Diodes Incorporated produce pin-compatible LM393D variants, providing true multi-source resilience. The improved LM393B/2903B silicon offers drop-in compatibility with better DC precision and 1 microsecond response time. Typical applications include voltage-level detection, zero-crossing detectors, relaxation oscillators, window comparators, battery undervoltage/overvoltage monitors, and limit comparators in industrial, automotive, and consumer systems. It is also a staple in switched-mode power supply feedback, sensor threshold detection, and as a building block in PWM and 555-style timer circuits. Design consideration: every open-collector output requires a pull-up resistor (typically 1 kOhm to 100 kOhm). Add a few millivolts of positive-feedback hysteresis to prevent output chattering when the input signal transitions slowly through the threshold.
LM393DR - Dual Differential Comparator, 36V, Open-Collector SOIC-8 | Texas Instruments
The Texas Instruments LM393DR is a dual differential comparator integrating two independent precision comparators on a single monolithic die, housed in an 8-pin SOIC surface-mount package with the industry-standard LM393 pinout. The device operates from a single supply of 2V to 36V or from split dual supplies of plus/minus 1V to plus/minus 18V, and features an open-collector output stage that supports rail-to-rail output swing through an external pull-up resistor. A comparator is an analog building block that compares two input voltages and drives its output to indicate which is greater. Within the component taxonomy, the LM393 belongs to the general-purpose voltage comparator family, sitting as a faster-switching cousin of the operational amplifier optimized for saturated logic-level output rather than linear amplification. It belongs to the signal-conditioning and power-management hierarchy, alongside op-amps, voltage references, and supervisors. Key features include a quiescent supply current of approximately 0.4 mA per comparator that is largely independent of supply voltage, a typical input offset voltage of 1 mV (improved to 0.37 mV on the LM393B revision), and a wide common-mode input range that includes ground (V-), enabling true single-supply ground-sensing. The open-collector output structure allows wired-OR logic and direct interfacing to TTL, CMOS, or any logic family by tying the pull-up to that family's supply rail up to 36V, independent of the comparator's own VCC. The LM393DR is built on TI's mature junction-isolated bipolar process with a PNP input stage that gives it the low-input-bias-current robustness expected of a decades-old industry workhorse. Multiple second-source manufacturers including ROHM Semiconductor, STMicroelectronics, ON Semiconductor, and Diodes Incorporated produce pin-compatible LM393DR variants, providing true multi-source resilience. The improved LM393B/2903B silicon offers drop-in compatibility with better DC precision and 1 microsecond response time. Typical applications include voltage-level detection, zero-crossing detectors, relaxation oscillators, window comparators, battery undervoltage/overvoltage monitors, and limit comparators in industrial, automotive, and consumer systems. It is also a staple in switched-mode power supply feedback, sensor threshold detection, and as a building block in PWM and 555-style timer circuits. Design consideration: every open-collector output requires a pull-up resistor (typically 1 kOhm to 100 kOhm). Add a few millivolts of positive-feedback hysteresis to prevent output chattering when the input signal transitions slowly through the threshold.
LM393DT - Dual Low-Power Voltage Comparator | STMicroelectronics
The LM393DT is a dual low-power voltage comparator from STMicroelectronics, designed for general-purpose applications requiring precise voltage comparison with minimal power consumption. It operates from a single supply voltage ranging from 2V to 36V or dual supplies from ±1V to ±18V, with a typical supply current of only 0.4 mA per comparator. The device features an open-collector output stage that can sink up to 16 mA, allowing direct interface with TTL, CMOS, and other logic families. The LM393DT is available in the SOIC-8 package, making it suitable for space-constrained PCB designs. Data verified as of 2026-08-05. A voltage comparator is an electronic circuit that compares two input voltages and outputs a digital signal indicating which is higher. The LM393DT is a dual comparator, meaning it contains two independent comparators in a single package. Comparators are fundamental building blocks in analog and mixed-signal systems, used in applications such as threshold detection, zero-crossing detection, and waveform shaping. They are part of the broader category of linear ICs, which also includes operational amplifiers and voltage regulators. The LM393DT's low power consumption and wide supply range make it a versatile choice for battery-powered and industrial applications. Key features of the LM393DT include a low input offset voltage of 2 mV (typical), a low input bias current of 25 nA (typical), and a response time of 1.3 µs (typical) for a 5V overdrive. The open-collector output allows wired-OR connections and level shifting, and the device can operate from a single supply as low as 2V, making it suitable for low-voltage systems. The SOIC-8 package provides a compact footprint with a thermal resistance of 150 °C/W, enabling reliable operation in moderate temperature environments. The LM393DT uses a bipolar transistor architecture with a differential input stage and an open-collector output. This design provides high input impedance and stable operation over a wide temperature range (-40°C to +105°C). The device includes internal ESD protection and is designed to meet JEDEC standards for reliability. The open-collector output requires an external pull-up resistor, which allows the output voltage to be set to any level up to the maximum supply voltage, providing flexibility in interfacing with different logic families. Typical applications for the LM393DT include window comparators, level shifters, oscillator circuits, and analog-to-digital converters. In a window comparator, the dual comparators are used to detect whether an input signal is within a specified voltage range, which is useful in battery monitoring and overvoltage protection. The low power consumption makes it ideal for portable devices, while the wide supply range supports industrial control systems operating from 24V rails. When designing with the LM393DT, ensure that the pull-up resistor is selected to limit the output sink current to within the 16 mA maximum rating. For high-speed applications, minimize parasitic capacitance on the output node to achieve the specified response time. The input common-mode range extends from ground to VCC-1.5V, so ensure that input signals remain within this range for proper operation. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the STMicroelectronics datasheet, providing a comprehensive resource for engineers selecting and using the LM393DT.
LM393M - Dual Open-Collector Comparator | Texas Instruments
The Texas Instruments LM393M is a dual differential comparator in an 8-pin SOIC package, with two independent comparator channels and open-collector outputs. The verified distributor listing identifies it as a standard general-purpose comparator supporting single-supply or dual-supply operation, with a 2 V to 36 V total supply range and comparator response time listed as 1.4 microseconds. Its open-collector outputs require an external pull-up resistor, allowing the output stage to be wired for wired-AND behavior, level translation, or interface to a higher-voltage logic system. What is a dual differential comparator? A comparator is an analog integrated circuit that compares two input voltages and produces a binary high-or-low result according to their relationship. A differential comparator includes both a non-inverting and an inverting input. The LM393M contains two such channels, making it useful for independent threshold decisions in one package. It belongs to the comparator, analog IC, and semiconductor hierarchy rather than being an amplifier; the output intentionally indicates which input is higher instead of reproducing an analog signal. The key verified feature set includes two differential comparators, an 8-SOIC surface-mount package, open-collector outputs, a 1.4 microsecond response time, and a 2 V to 36 V comparator supply specification. The distributor comparison material also lists differential input and output-current information, while the supplied search results identify the device as suitable for general-purpose comparison. Because the output transistor is open collector, output high level depends on the pull-up resistor and supply rail, not on a push-pull output driver. The two channels are independent, allowing the device to compare two separate sensor or control signals. The common open-collector output architecture can be useful in power-monitoring circuits where several comparator outputs must combine logically, provided the system uses suitable pull-up resistors and does not exceed the device's electrical limits. The SOIC-8 package supports conventional surface-mount assembly, while the dual channel count can reduce board area compared with two single comparators. Typical applications include battery and power-supply monitoring, overvoltage and undervoltage protection, sensor threshold detection, industrial control logic, window or level monitoring, and general digital control systems. The 2 V to 36 V comparator supply range provides useful flexibility for industrial and embedded systems, although the complete operating conditions must be checked against the manufacturer datasheet. A key design consideration is the open-collector output. Add a pull-up resistor to each output, choose its value with the required sink-current and rise-time limits in mind, and ensure that the downstream device accepts the resulting logic level. Do not assume that the output can source current independently. The input common-mode range, output saturation levels, supply current, and absolute maximum ratings are not fully specified in the supplied verified data and must be confirmed before design release. This page combines the verified distributor identity, package information, comparator function, search-result specifications, available cross-reference sources, and practical design guidance. It does not invent unprovided offset, temperature, response-current, or compliance details; unavailable parameters are identified for engineering follow-up.
LM393N - Dual Comparator 2-36V Open-Collector | 8-PDIP
The LM393N is a classic dual low-power low-offset-voltage comparator from the LM193/LM393/LM2903 family originally introduced by National Semiconductor and now multi-sourced by Texas Instruments, Fairchild (onsemi), Motorola, NXP, and others. It integrates two independent precision voltage comparators in an 8-pin PDIP (through-hole, DIP-8) package, designed to operate from a single supply rail of 2 V to 36 V or from split supplies of ±1 V to ±18 V. Each comparator features an open-collector output that can sink up to 16 mA and drives loads referenced to ground or any positive rail up to 36 V, making it ideal for level translation between incompatible logic domains. A comparator is an analog decision element that compares two input voltages and produces a logic-level output indicating which input is larger. The LM393N fits within a hierarchy of: comparator -> analog comparator -> signal-conditioning IC -> semiconductor. Within the broad comparator category, the LM393N belongs to the low-power, low-offset, open-collector-output class (synonym: voltage comparator), distinct from the LM339 quad family and the more modern CMOS comparators such as the LMV393 and LM393LV. Key specifications of the LM393N include: input offset voltage as low as 2 mV maximum (LM193/LM193A series; typical LM393 spec is ±5 mV), input bias current of 25 nA typical, common-mode input range that includes ground, and a propagation delay of approximately 1.3-1.5 microseconds. The open-collector output stage requires a pull-up resistor (typically 2-10 kohm from output to the positive logic rail). The device operates across a -40 C to +85 C ambient temperature range and is widely used in battery-powered systems thanks to its low quiescent current draw (typically 0.4 mA per comparator). Typical applications of the LM393N include zero-crossing detectors for AC line signals, battery voltage monitors and low-battery cutoff circuits, window comparators, over-voltage and over-current protection circuits, square-wave/relaxation oscillators, voltage level shifters (e.g., 5 V CMOS to 12 V relay logic), and analog sensor threshold detectors for photodiodes, thermistors, and Hall-effect sensors. The wide supply range and ground-sensing input make it especially useful in single-rail automotive and industrial 12 V/24 V systems. When designing with this device, remember that the open-collector output cannot actively source current - you must provide a pull-up resistor on each output. Also, the input common-mode range is limited to 0 V to VCC-1.5 V; inputs that approach the upper rail may saturate the input stage. For low-voltage (<5 V) battery applications where lower quiescent current is critical, consider the LMV393 (CMOS) or LM393LV as direct upgrades.
LM393P - Dual Comparator, 2V-36V, Open-Collector, 8-PDIP | Texas Instruments
The Texas Instruments LM393P is a dual-channel differential comparator with open-collector outputs, housed in an 8-pin PDIP (P) through-hole package. The device contains two independent precision voltage comparators designed to operate from a single supply over a 2V to 36V range, or from dual supplies of ±1V to ±18V, with a typical response time of approximately 1.3 us and a propagation delay of 300 ns. A voltage comparator is a fundamental analog building block that compares two input voltages and produces a digital logic-level output indicating which input is larger. Comparators belong to the broader category of analog comparators -> signal conditioning ICs -> amplifiers and comparators -> analog ICs -> semiconductors. The LM393 family is one of the industry's longest-standing and most widely second-sourced comparator designs, making the LM393P a staple in through-hole commercial, industrial, and educational designs. Open-collector outputs allow the user to define the output high level via an external pull-up resistor to any reference voltage, including a logic level different from VCC, enabling level shifting and OR-wired multi-comparator topologies. Key features include a maximum input offset voltage of ±5 mV, an input bias current of 25 nA typical, a quiescent supply current of 0.4 mA typical (independent of supply voltage), and an open-collector output capable of sinking up to 16 mA. The wide supply range (2V to 36V single supply) and low input bias current make the LM393P well suited to direct interfacing with sensors, op-amp outputs, and TTL/CMOS logic families without additional level translation. Each comparator channel consists of a low-offset differential input stage followed by an open-collector NPN output transistor. The output transistor is OFF when the non-inverting (+) input is at lower potential than the inverting (-) input, and saturates to pull the output LOW when + exceeds -. Designers commonly add an external pull-up resistor (typically 10 kohm to VCC) to establish the HIGH level, which is critical because an open-collector output cannot actively drive HIGH. Typical applications include zero-crossing detectors, over/under-voltage monitors, battery low-detection circuits, window comparators, oscillators, Schmitt triggers, and sensor signal conditioning for industrial, automotive, and consumer designs. The LM393P's through-hole PDIP package supports breadboard prototyping, educational labs, and legacy through-hole PCB designs where surface-mount variants (LM393D, LM393DR) are unsuitable. When designing with the LM393P, place a 0.1 uF bypass capacitor as close as possible to the VCC pin and ensure the pull-up resistor value is sized against the desired output rise time and load capacitance. Avoid driving the output above the maximum collector-emitter voltage of 36V and respect the absolute maximum input common-mode range of -0.3V to VCC to prevent input stage damage. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, with verified values drawn from TI product page, DigiKey catalog, and the LM393B/LM2903B datasheet family specification table.
LM4871MX/NOPB - 3W Mono Class-AB Audio Amp | Texas Instruments
The LM4871MX/NOPB is a mono bridged audio power amplifier from Texas Instruments, part of the Boomer series, capable of delivering 3W of continuous average power into a 3Ω load with less than 10% THD when powered by a 5V supply. It operates from a 2V to 5.5V supply, making it ideal for battery-powered portable devices. The device features a shutdown mode that reduces quiescent current to minimize power consumption when not in use. Housed in an 8-pin SOIC (D) package, it is designed for surface-mount assembly and operates over a temperature range of -40°C to 85°C. An audio power amplifier is an electronic amplifier that amplifies low-power audio signals to a level suitable for driving loudspeakers. The LM4871 is a Class-AB amplifier, which offers a good compromise between efficiency and linearity, providing low distortion while consuming moderate power. In the hierarchy of audio electronics, it falls under audio amplifiers, which are a subset of analog ICs used in consumer electronics, portable devices, and multimedia systems. Key features include a shutdown mode with low quiescent current (6.5mA typical), a wide supply voltage range of 2V to 5.5V, and a maximum output power of 3W into 3Ω. The device also offers thermal shutdown protection and is available in a lead-free (NOPB) version, compliant with RoHS. Its differential output architecture eliminates the need for output coupling capacitors, reducing external component count and board space. The LM4871 uses a bridged-tied load (BTL) configuration, which effectively doubles the voltage swing across the load compared to a single-ended amplifier, maximizing output power without increasing supply voltage. This architecture, combined with a low-noise design, ensures clean audio reproduction. The device is designed for simplicity, requiring only a few external components, making it easy to integrate into compact designs. Typical applications include portable speakers, mobile phones, MP3 players, and other battery-powered audio devices where high efficiency and low power consumption are critical. Its small SOIC package and minimal external component requirement make it suitable for space-constrained designs. When designing with the LM4871, ensure proper PCB layout with adequate ground plane and decoupling capacitors close to the supply pins to minimize noise and improve thermal performance. The shutdown pin can be used for power management to extend battery life.
LM4875M/NOPB - 750mW Mono Audio Amplifier w/ DC Volume | TI
The Texas Instruments LM4875M/NOPB is a 750 mW mono bridged audio power amplifier with DC voltage volume control and headphone switch, housed in an 8-pin SOIC package. It operates from a 2.7 V to 5.5 V supply, delivers 750 mW continuous average power into an 8 ohm load at less than 1% THD+N when powered from 5 V, and integrates a mono Class-AB output stage with a dedicated single-ended headphone channel. The die combines the speaker amplifier, headphone amplifier, depop circuitry, and a digitally-controlled analog volume interface in a single 8-pin SOIC footprint. An audio power amplifier IC is an integrated circuit that delivers sufficient low-distortion current to drive a loudspeaker or headphone transducer from a low-voltage analog source. Within the power management hierarchy, the LM4875M/NOPB belongs to the analog amplifier family, which is a sub-category of signal-chain ICs alongside op-amps, line drivers, and codecs. Class-AB amplifiers such as the LM4875 bias their output transistors with a small quiescent current, achieving higher efficiency than Class-A designs while avoiding the crossover notch distortion of Class-B push-pull stages. The bridged (BTL) topology doubles the voltage swing across the load without requiring a DC blocking capacitor or split supply, simplifying single-rail portable designs. Key features of the LM4875M/NOPB include 750 mW output into 8 ohm at 5 V with 0.5% THD+N, an integrated DC voltage volume control pin that sets gain in 32 steps, an automatic bridged-mode / headphone-mode sense pin, click-and-pop suppression on enable and mode transitions, and thermal shutdown protection. The supply range of 2.7 V to 5.5 V supports both single-cell Li-ion (3.7 V nominal) and USB-powered (5 V) rails, making the part well suited to handheld consumer audio. The 8-pin SOIC (M) package is JEDEC MS-012 standard with a thermal pad absent, so most dissipation is handled through the PCB copper pours on pins 4 and 5. The device uses a fully differential Class-AB output stage with internal feedback networks, plus a switched headphone amplifier that engages when a jack is sensed. Volume is set by a DC voltage on the VOL pin rather than a logarithmic taper potentiometer, eliminating the need for a mechanical pot and allowing software or hardware mute. The depop circuit controls the output common-mode voltage during power-up and headphone insertion, suppressing the audible transient that plagues many low-cost amplifiers. Typical applications include portable media players, USB-powered speakers, MP3 docking stations, laptop and tablet audio outputs, point-of-sale and kiosk audio prompts, and intercom / doorbell audio. The wide 2.7-5.5 V supply range and small 8-pin SOIC footprint make it a strong fit for any battery- or bus-powered design that needs more volume than a codec headphone amp can deliver. When designing with this part, ensure the input coupling capacitors are sized for the lowest desired bass response (47 nF gives roughly -3 dB at 300 Hz into the internal 20 kohm input impedance). Provide adequate ground copper on pins 4 and 5, and keep the HP-SENSE trace short to avoid false mode switching. This page synthesizes DigiKey/Mouser distributor pricing, drop-in same-package alternatives, and application-specific design notes not aggregated in the manufacturer datasheet, giving engineers a faster path to a verified BOM.
LM7321MFX/NOPB - 32V 20MHz RRIO Op Amp SOT-23-5 | TI
The Texas Instruments LM7321MFX/NOPB is a single-channel, rail-to-rail input and output (RRIO) operational amplifier delivering 20-MHz unity-gain bandwidth, 18-V/us slew rate, and up to 65 mA of output current from a compact 5-pin SOT-23 (DBV) package. It operates from supplies of 2.5V to 32V (up to +/-16V dual supply) while drawing only about 1 mA of supply current per amplifier. An operational amplifier (op amp) is a high-gain voltage amplifier used in the analog signal chain hierarchy: amplifier IC -> general-purpose op amp -> precision analog front end. The LM7321 belongs to the rail-to-rail op amp class, whose input and output stages swing to within millivolts of both supply rails, maximizing dynamic range in low-voltage and single-supply systems. Key differentiating features include unlimited capacitive load stability - the output drives large capacitive loads directly without external compensation - plus the high 65-mA output current that allows the device to drive heavy loads such as coaxial cables, ADC inputs, and actuator drivers. The rail-to-rail I/O architecture maintains performance across the full 2.7V, +/-5V, and +/-15V operating points specified by TI, and the wide temperature range of -40C to +125C supports industrial and automotive-adjacent designs. Internally, the LM732xx family uses a complementary input stage that seamless transfers near the rails, preserving bandwidth and phase margin across the common-mode range. The combination of 20-MHz bandwidth with only 1-mA quiescent current yields an excellent bandwidth-to-power figure compared with general-purpose parts such as the LM358. Typical applications include video and coaxial cable drivers, ADC input buffering, active filters, piezo and capacitive load drivers, test-and-measurement signal conditioning, and battery-powered portable instrumentation. The NOPB suffix indicates RoHS-compliant, lead-free terminations. Design tip: while capacitive load stability is essentially unlimited, keep supply decoupling close to the pins (100 nF per rail) and beware of thermal limits when sourcing 65 mA continuously at high output voltage swing.
LM741-MIL - General-Purpose Operational Amplifier | Texas Instruments
The Texas Instruments LM741-MIL is a general-purpose operational amplifier intended for a wide range of analog applications. Its verified product information identifies improved performance over industry standards such as the LM709, while the listed package and detailed electrical values are not supplied in the retrieved web data. The device is associated with the LM741 series, a classic single-amplifier architecture used in integrator, summing-amplifier, and general-feedback circuits. An operational amplifier is an integrated circuit that uses high-gain differential amplification with negative feedback to create predictable closed-loop behavior. The LM741 family belongs to the broader operational-amplifier, analog-amplifier, signal-conditioning, and semiconductor categories. Its general-purpose positioning makes it relevant to educational circuits, laboratory instruments, audio signal paths, analog control systems, filters, amplifiers, and legacy equipment where an established 741-family pinout and application ecosystem may be important. According to the verified Texas Instruments product-page information, the LM741-MIL provides improved performance relative to the LM709 and is a direct plug-in replacement for the 709C, LM201, MC1439, and 748 in most applications. The same source states that its high gain and wide operating-voltage range support integrator, summing-amplifier, and general-feedback applications. Exact supply voltage, input common-mode range, output swing, gain-bandwidth product, slew rate, input bias current, offset voltage, noise, and temperature-range values are not included in the supplied evidence and therefore must be verified from the manufacturer datasheet before design use. The verified Mouser result further describes the LM741-MIL as an operational amplifier for wide-ranging analog applications. The retrieved sources also identify the manufacturer as Texas Instruments and provide links to the product page and datasheet. Because the supplied data does not establish a precise orderable package suffix, pin count, lead-free status, automotive qualification, lifecycle classification, or distributor price, those fields remain data-needed rather than inferred. Typical circuit uses include closed-loop non-inverting and inverting amplifiers, analog summing networks, active filters, integrators, transducers, and general feedback control blocks. Designers should preserve the package and pinout of the installed circuit, confirm the applicable electrical limits, and verify stability, biasing, output swing, and compensation requirements before substituting a modern amplifier. This page summarizes only verified web information and avoids adding undocumented electrical claims. For a new high-precision design, compare the LM741-MIL against modern rail-to-rail input and output amplifiers, because the LM741’s historical architecture is not automatically the best choice for low-voltage or high-speed systems. For an existing legacy board, use the verified direct-plug-in-replacement claim only after checking the exact package and pin arrangement against the current schematic and datasheet.