Circuitos Integrados

LM324AM

LM324AM - 4-Channel 3-32V Low-Power Op Amp | Texas Instruments

The Texas Instruments LM324AM is a four-channel, general-purpose operational amplifier operating from a single supply of 3 V to 32 V in a 14-pin SOIC package. Each amplifier provides approximately 65 dB CMRR, operates with an output current up to 40 mA, and is intended for low-power signal-conditioning applications. The LM324AM combines four independently usable amplifier sections in one surface-mount package, reducing board area compared with four separate single or dual amplifier packages. An operational amplifier is an analog signal-processing IC that amplifies the voltage difference between its inverting and non-inverting inputs. The LM324 belongs to the general-purpose operational-amplifier hierarchy: operational amplifier → voltage-feedback amplifier → integrated amplifier IC. Its four internal sections support common tasks including voltage buffering, transducer amplification, cross-coupled differential stages, analog filtering, and sensor-signal conditioning while operating from a single positive supply. The principal advantages of the LM324AM are its low-power four-channel integration, 3 V to 32 V single-supply range, approximately 65 dB CMRR, and low-power characterization emphasized by distributors. The 14-pin SOIC format supports conventional surface-mount assembly, while the four amplifier channels can provide independent gain or buffering functions within one package. The listed operating-temperature range is 0 °C to 70 °C, matching a general-purpose commercial-temperature class rather than an explicitly automotive-qualified product. The internally frequency-compensated architecture makes the LM324AM suitable for straightforward closed-loop amplifier configurations without external compensation networks. Designers should still verify input common-mode range, output swing, output-current capability, noise, slew rate, offset voltage, and channel behavior against the manufacturer datasheet for the exact production source and grade. Because LM324-family devices are also offered by multiple manufacturers, procurement should confirm the manufacturer marking, temperature grade, qualification status, and traceability. Typical uses include industrial 4-20 mA current-loop receivers, low-voltage sensor amplifiers, audio preamplifier stages, active filters, and general analog control boards. The integrated quad format is particularly useful when four similar amplifier channels are required. For a single- or dual-channel design, however, a one- or dual-amplifier package can reduce unused channels, power consumption, and PCB area. The principal design consideration is ensuring that the input and output operating points remain within the device's allowable common-mode and output-swing limits. Layout should keep feedback-loop connections short, provide local bypassing at the supply pins, and avoid placing high-current return paths beneath sensitive analog inputs. Stable operation near ground-level signals should be checked carefully when the source impedance is high or when the required output amplitude approaches the supply rails. This page consolidates verified distributor and manufacturer information, package-level replacement guidance, practical layout notes, and parameter-by-parameter comparisons. It also distinguishes verified facts from specifications that require confirmation from the exact manufacturer datasheet, helping engineers select and qualify the LM324AM without relying on generic family assumptions.

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LM324AM/NOPB

LM324AM/NOPB - 4-Channel 1 MHz Op Amp | Texas Instruments

The Texas Instruments LM324AM/NOPB is a four-channel, general-purpose operational amplifier with a 1 MHz gain-bandwidth product, 0.5 V/us slew rate, and 3 V to 32 V single-supply operation in a 14-pin SOIC package. The LM324AM/NOPB contains four independent, high-gain, internally frequency-compensated amplifiers, allowing one device to implement multiple analog signal-conditioning channels while reducing package count and board area. An operational amplifier is an analog amplifier used to amplify voltage differences and serve as a building block in analog and mixed-signal systems. The LM324 family belongs to the operational-amplifier, analog-amplifier, and semiconductor hierarchies. Its four channels can perform buffering, voltage amplification, summing, comparison, filtering, and transducer-signal conditioning when configured with passive networks or companion components. The principal operating characteristics include four amplifier circuits, a 1 MHz gain-bandwidth product, 0.5 V/us slew rate, and a 3 V to 32 V total supply range. The low-power bipolar architecture supports single-supply operation, while internal frequency compensation allows practical closed-loop gain stages without external compensation components. The 14-pin SOIC form factor is also compatible with standard surface-mount assembly and tube-packaging workflows. Internal frequency compensation trades higher bandwidth for simple implementation and stable operation in general-purpose analog circuits. Each amplifier can use its supply rails as input common-mode limits, so input and output signals must remain within the permitted operating range. Circuit designers should account for input offset voltage, input bias current, output-current capability, common-mode limits, and output swing when choosing gain, feedback values, and external loading. Typical uses include four-channel sensor conditioning, low-frequency active filters, audio preamplifier stages, general signal buffers, DC summing networks, and mixed-signal interface circuits. The 1 MHz bandwidth is most appropriate for low-frequency and moderate-bandwidth tasks rather than high-speed instrumentation, where a wider-bandwidth amplifier would normally be preferred. The four-channel configuration is especially useful when a board needs several matched general-purpose amplifier functions. Keep input and output return paths short, decouple each supply rail close to the device, and place feedback components close to the relevant amplifier pins. Avoid driving capacitive loads directly unless the configured gain, load value, and stability behavior have been checked. Input bias-current compensation is important for high-impedance sources because the LM324 uses bipolar input transistors rather than CMOS inputs. This product record combines the exact LM324AM/NOPB package, operating, and amplifier data with practical application guidance, drop-in comparison options, and design considerations for efficient single-supply analog design.

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LM324AMX/NOPB

LM324AMX/NOPB - 32V Quad 1MHz Op Amp | Texas Instruments

The Texas Instruments LM324AMX/NOPB is a low-power, general-purpose quad operational amplifier containing four independent, high-gain, internally frequency-compensated amplifiers. The device operates from a single power supply across a 3 V to 32 V range and provides approximately 1 MHz gain-bandwidth performance. It is packaged in a 14-pin SOIC (D) rated for a 0°C to 70°C ambient temperature range. An operational amplifier is an analog signal-conditioning IC that amplifies the difference between its inverting and non-inverting inputs. The operational-amplifier category includes general-purpose amplifiers, precision amplifiers, instrumentation amplifiers, and comparators; the LM324 belongs to the general-purpose single-supply amplifier family. Its four independent channels can run from the same supply while handling separate signal paths. The LM324AMX/NOPB provides a large DC voltage gain of 100 dB and is internally compensated for stable operation at unity gain. Its wide 3 V to 32 V supply range supports both conventional 5 V and 12 V analog systems as well as higher-voltage industrial rails. The output can swing from approximately 0 V to VCC minus 1.5 V, making rail-to-rail operation unnecessary when the signal remains within that range. The input common-mode voltage range includes ground, which is useful for single-supply sensing circuits. The amplifier's low-power architecture suits battery-operated instrumentation, analog signal conditioning, sensor amplification, and control loops where a precision rail-to-rail amplifier is unnecessary. Four amplifiers in one package also reduce board area when a design needs several similar analog channels. The internally compensated topology simplifies stable feedback design around unity gain, although applications requiring higher closed-loop gain or faster settling need additional bandwidth and stability analysis. Typical uses include transducers with ground-referenced outputs, current sensing, buffering, level shifting within the common-mode range, and general-purpose analog filtering. Each channel provides input and output pins in the same 14-pin SOIC outline, so no external isolation or separate bias circuitry is required for the basic amplifier function. Design should preserve the input common-mode and output-swing limits, especially near the positive supply rail. Where the signal can approach the upper rail, add headroom or select an amplifier with rail-to-rail output capability. Decoupling capacitors should be placed close to the supply pins, and unused amplifier channels should be configured conservatively rather than left floating. This page combines manufacturer specifications with package details, application guidance, drop-in replacement analysis, and practical design notes to support faster component selection and PCB planning.

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LM324AN

LM324AN - Quad 30V 1.2MHz Op Amp | Texas Instruments

The Texas Instruments LM324AN is a low-power, quad operational amplifier containing four independent, high-gain, internally frequency-compensated amplifiers in a 14-pin PDIP package. The device operates from a single power supply, supports a maximum supply voltage of 30 V, and is specified for a gain-bandwidth product of 1.2 MHz with an input offset voltage rating of 3 mV. Its operating temperature range is 0°C to 70°C. An operational amplifier is an analog integrated circuit that amplifies the difference between its non-inverting and inverting inputs. The LM324AN belongs to the general-purpose operational amplifier family within the broader voltage-amplifier and analog signal-conditioning hierarchy. Internally compensated gain stages allow the amplifier to provide stable closed-loop operation without an external compensation capacitor, while the differential input architecture supports common-mode operation from ground upward in many single-supply circuits. Each of the four amplifier sections has a differential input, an output, and internal bias compensation. The 3 mV input offset rating is suitable for general instrumentation, sensor interfaces, active filtering, and audio preamplification where the signal is not operating near the precision limits of a dedicated low-offset amplifier. The 1.2 MHz gain-bandwidth product provides adequate bandwidth for low-frequency control, buffering, and modest-frequency signal-processing applications. The LM324AN is a classic single-supply-oriented device, but its wide supply capability also permits conventional dual-supply operation where the common-mode input range permits it. The four independent amplifiers can implement separate gain stages, comparators, filters, or buffer functions in one package. The through-hole PDIP construction is particularly useful for prototype boards, educational systems, industrial controllers, and repair assemblies where socketed or manually inserted parts are preferred over fine-pitch surface-mount packages. Typical uses include DC signal conditioning, bridge-amplifier interfaces, loop filtering, audio mixing stages, general feedback control, and low-cost sensor amplification. Because the LM324AN is not a rail-to-rail input or output amplifier, the engineer should verify input common-mode range and output swing against the selected supply voltage. Decoupling capacitors are normally placed close to the supply pins to control impedance and prevent feedback from disturbing analog signal integrity. For new precision designs, compare the LM324AN with rail-to-rail or low-offset alternatives before committing to the design. For established DIP-14 layouts and repair work, the LM324AN remains useful because several LM324-family devices from different manufacturers are offered in the same 14-pin through-hole footprint. Pricing shown for this page is referenced as of October 29, 2026 and should be rechecked against current distributor inventory. This page consolidates manufacturer specifications, verified distributor listings, cross-reference options, pin-level implementation guidance, and application-specific design notes that help engineers evaluate the LM324AN beyond a basic distributor catalogue entry.

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LM324AN/NOPB

LM324AN/NOPB - Quad 1 MHz General-Purpose Op Amp | Texas Instruments

The Texas Instruments LM324AN/NOPB is a quad general-purpose operational amplifier in a 14-pin PDIP package, integrating four independent, high-gain, internally frequency-compensated amplifiers in one monolithic die. Each channel operates from a single supply as low as 3 V up to 30 V, delivering a typical open-loop gain of 100 dB, a 1.0 MHz gain-bandwidth product and a 0.5 V/us slew rate. An operational amplifier (op amp) is a high-gain differential amplifier whose inverting and non-inverting inputs are compared and amplified. When negative feedback is applied, the closed-loop gain is set entirely by external resistors, which makes the op amp the basic building block of the analog signal chain: it sits in the hierarchy above discrete transistor gain stages and below complete application circuits such as amplifiers, filters, comparators, transducers and line drivers. The LM324 family, introduced by National Semiconductor and now a Texas Instruments product, is the archetypal single-supply general-purpose quad. The LM324A device in the LM324AN/NOPB provides a typical input offset voltage of 2 mV, an input bias current of 250 nA, and a typical supply current of 0.8 mA per amplifier, so four channels consume roughly 3.2 mA at 5 V. Output swing reaches within 20 mV of the negative rail and about 100 mV below the positive rail at 100 kΩ load, while the output can source or sink tens of milliamperes. Internal differential input and output protection diodes tolerate rail-to-rail input transients. The architecture is a classic bipolar, voltage-feedback design with a single dominant-pole compensation network per channel, giving unity-gain stability without external compensation. Noise is dominated by input-referred voltage noise of roughly 45 nV/√Hz at 1 kHz, and the amplifiers are designed for unity-gain operation in comparators, buffers and general analog signal conditioning. Typical applications include low-cost sensor signal conditioning, 4-20 mA current-loop receivers, audio mixer subcircuits, active filters, temperature controllers, bridge amplifier front ends, power-supply feedback loops and general instrumentation. Because the package is a through-hole PDIP-14, the part also fits legacy industrial and educational control boards that were designed around the original LM324 footprint. A key design consideration is that the LM324 does not rail-to-rail output and its common-mode input range excludes the positive rail, so headroom must be planned for single-supply designs. The input bias current flows through the source resistance, so matched resistor networks keep output offset small. Using the device as a comparator requires care because output saturation recovery takes several microseconds. This page adds information the datasheet does not provide: a drop-in alternative matrix with quantified differences, package and pinout reference, engineering design notes covering decoupling and input common-mode limits, and a parameter-by-parameter comparison table for selecting between the Texas Instruments, onsemi and equivalent quad op amp sources.

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LM324ANE4

LM324ANE4 - Quad 14-PDIP Op Amp | Texas Instruments

Texas Instruments LM324ANE4 is a low-power, quadruple operational amplifier designed for general-purpose analog signal conditioning from single or split power supplies. The device contains four amplifiers in one 14-PDIP package and is associated with a wide supply-voltage operating range. According to the Texas Instruments LM324 product page, the LM324 family is optimized for low-power operation, while the device description identifies it as a low-power quad operational amplifier for single-supply applications. An operational amplifier is an analog integrated circuit that uses high-gain differential amplification to compare and process voltages. The LM324 family belongs to the operational-amplifier hierarchy within analog and signal-chain ICs. Four amplifiers in one package can support buffer, amplifier, comparator, summing, difference, filtering, and level-conversion functions while reducing board area and external component count. The LM324ANE4 combines four amplifier channels with single-supply operation. The component documentation describes operation from split supplies with a total supply difference from 3 V to 32 V, and notes a typical low supply-current drain of 0.8 mA. Its input common-mode voltage range includes ground, allowing the amplifier to process input signals near the lower supply rail. This rail-to-near-ground input capability is particularly useful in systems powered from a single positive supply. Each internal amplifier includes the input and output functions needed for conventional closed-loop analog designs. Feedback components establish gain and filtering behavior, while the open-loop characteristics of the internal transistor stages determine signal amplification, common-mode behavior, and output-drive capability. Because all four channels share one package and supply pins, the device is especially practical when a board needs several similar signal-conditioning channels rather than unrelated mixed functions. Typical applications include low-frequency audio and control circuits, DC signal amplifiers, active filters, sensor-signal conditioning, and general industrial interface boards. The four-channel organization can simplify a design requiring multiple gain stages or parallel low-bandwidth analog channels. The 14-PDIP package also supports through-hole assembly and prototype-board layouts where a surface-mount package would be inconvenient. Designers should verify the exact input common-mode limits, output-swing limits, supply-current behavior, electrical characteristics, and operating-temperature grade in the manufacturer datasheet before finalizing signal headroom. Input and output stability also depends on the selected feedback network, source impedance, load, decoupling, and board layout. Place bypass capacitors close to the supply pins and keep sensitive input nodes away from high-current return paths. This product page combines manufacturer-product information, datasheet references, package and pinout details, application guidance, and same-footprint alternative analysis. It is designed to help engineers evaluate the LM324ANE4 alongside other Texas Instruments LM324 ordering codes while preserving the constraints of a 14-PDIP, four-channel general-purpose amplifier.

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LM324ANS

LM324ANS - Quad 14-SO General-Purpose Op Amp | Texas Instruments

The Texas Instruments LM324ANS is a quad general-purpose operational amplifier packaged in a 14-pin SOIC (14-SO) package. It contains four independent, internally frequency-compensated amplifier sections designed for low-cost signal conditioning, voltage amplification, filtering, comparison, and general analog control applications. The device supports single-supply or dual-supply operation across a wide voltage range, making it suitable for industrial, consumer, instrumentation, and educational equipment. An operational amplifier, or op amp, is a high-gain differential-input amplifier whose feedback network determines the closed-loop behavior. The LM324 belongs to the linear-amplifier hierarchy within the broader voltage-feedback amplifier and analog-signal-conditioning categories. Its four independent sections allow one package to implement several stages in a circuit without requiring four separate amplifier packages. Key features of the LM324ANS include four amplifier sections in one 14-SO package, internal frequency compensation, operation from a single power supply, operation with a positive ground-referenced common-mode input range, and low supply-current consumption. The internal compensation simplifies design because most closed-loop gain configurations do not require an external frequency-compensation capacitor. The wide common-mode and supply ranges are useful when sensing signals near ground or operating from a single battery-derived rail. Each amplifier section has differential inputs and an output, while the package provides a common supply connection. Because the LM324 is intended for general-purpose analog work, it is more appropriate for moderate-bandwidth signal conditioning than for high-speed precision applications. The device can buffer sensor outputs, amplify small voltage changes, implement active filters, and provide simple threshold-based control functions. Its internally compensated architecture favors straightforward, stable implementation over the flexibility of a high-performance precision amplifier. Typical applications include industrial sensor interfaces, audio preamplifier stages, low-frequency active filters, control-loop amplifiers, data acquisition front ends, and educational analog systems. In a sensor interface, the quad configuration can amplify the transducer output, buffer the reference, provide gain, and drive a following filtering stage. In audio equipment, separate sections can handle input amplification, tone-control filtering, and output buffering. The 14-SO package also simplifies assembly in designs that require a quad amplifier but not a high-pin-count or high-speed package. When laying out the circuit, place input and output decoupling capacitors close to the supply pins and keep sensitive input traces away from output and switching nodes. Check input and output common-mode limits for the selected supply voltage, especially when signals approach the positive rail. Use the manufacturer pinout and application guidance for the final PCB implementation.

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LM324AWPT

LM324AWPT - Quad Low-Power Op Amp, 1.3MHz, TSSOP-14 | STMicroelectronics

The STMicroelectronics LM324AWPT is a low-power, low-input-bias-current quad operational amplifier integrating four independent, internally frequency-compensated gain stages in a single 14-pin TSSOP (Tape and Reel) package. The 'A' suffix designates the enhanced input-offset-voltage grade, which tightens Vio to a maximum of 2 mV at 25°C versus 7 mV for the standard LM324, while the 'W' suffix extends the operating temperature range to -40°C to +105°C for industrial environments. Each of the four channels delivers a gain-bandwidth product of approximately 1.3 MHz and a slew rate of 0.4 V/µs, drawing only 1.5 mA of quiescent supply current total regardless of channel loading. A quad operational amplifier (quad op-amp) is a monolithic integrated circuit that places four independent, internally-compensated op-amp cells in one package sharing common power pins. Quad op-amps belong to the broader operational amplifier family, which in turn falls under the linear IC hierarchy and finally under analog signal-conditioning semiconductors. Compared with single or dual op-amps, quad devices reduce PCB area, simplify routing, and lower the per-channel cost in applications requiring multiple gain, buffer, filter or comparator stages. The LM324 series uses bipolar transistor input stages that can operate from a single supply as low as 3 V or from split ±1.5 V to ±16 V rails, with true ground-sensing capability on the input common-mode range. The differential input range includes the negative rail, eliminating the need for external biasing in single-supply designs. Output swing typically reaches within a few millivolts of both rails at moderate loads, and the device sustains continuous output short-circuits to ground or either rail thanks to internal current limiting. Typical applications include active filters, transducer signal conditioning, DC gain blocks, voltage followers, comparators, and general-purpose analog signal chains in consumer, industrial and automotive subsystems. The wide supply range makes the part especially popular in 5 V single-rail microcontroller-interface circuits, where four op-amps share one supply rail alongside the MCU. When designing with the LM324AWPT, place a 0.1 µF ceramic bypass capacitor within 5 mm of the VCC pin and consider the input bias current of 20 nA typical (50 nA maximum) when selecting source impedances — bias currents up to 50 nA across a 100 kΩ source produce a 5 mV offset error. Avoid using this part in precision sub-millivolt instrumentation paths; choose the LM324A-grade offset only when 2 mV is acceptable. Always consult the official STMicroelectronics datasheet for full DC and AC characteristic curves.

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LM324BAIDR

LM324BAIDR - Quad 36V 1.2MHz Op-Amp | Texas Instruments

The Texas Instruments LM324BAIDR is a quadruple operational amplifier featuring four general-purpose amplifier channels with a 36V maximum supply, 1.2MHz gain-bandwidth product, and a low input offset voltage of 2mV (B, BA versions), housed in a 14-pin SOIC (D) package rated for -40C to +85C operation. An operational amplifier (op-amp) is a high-gain voltage amplifier with differential inputs and a single-ended output, the fundamental building block of analog signal conditioning. In the analog hierarchy, the op-amp sits above discrete transistors and below specialized amplifiers such as instrumentation and audio amplifiers; general-purpose quad op-amps like the LM324 family provide four independent channels in one package for cost-sensitive multi-channel designs. The LM324BA is the next-generation BA version of the classic LM324. Key improvements over legacy LM324/LM224/LM2902 parts include a wide 3V to 36V supply range, tighter 2mV input offset voltage specification, and enhanced robustness, while remaining pin-for-pin drop-in replacements for all legacy versions. The push-pull output stage improves output voltage swing and crossover behavior compared to older Class-AB output stages, reducing the well-known LM324 output crossover distortion near the negative rail. Each of the four amplifiers shares a common supply; single-supply operation down to 3V makes the part suitable for 3.3V and 5V logic-based systems as well as traditional up to 36V industrial rails. The common-mode input range includes the negative rail, a signature LM324-family trait that simplifies single-supply designs such as sensor buffering near ground. Typical applications include industrial signal conditioning, transducer amplifier front ends, active filters, comparators and level shifters, motor-control feedback loops, and consumer appliance analog interfaces. Design consideration: the 1.2MHz gain-bandwidth limits closed-loop bandwidth; at a gain of 10, expect roughly 120kHz of usable bandwidth, so verify gain-phase margin in high-gain configurations. This page synthesizes verified distributor pricing, drop-in alternatives, pinout data, and practical design notes not found in the manufacturer datasheet alone.

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LM324D

LM324D - Quad 36V Op Amp | Texas Instruments | SOIC-14 (Tape & Reel)

The Texas Instruments LM324D is a low-power, quadruple operational amplifier containing four independent, high-gain, internally frequency-compensated amplifiers in a 14-pin SOIC package. The verified product data identifies it as a general-purpose amplifier designed for operation from a single supply or split supply over a wide voltage range, with the B-family supply range specified as 3 V to 36 V. This quad topology lets one compact IC provide four separate analog signal-conditioning channels without requiring four discrete packages. An operational amplifier is an analog amplifier used in the wider semiconductor hierarchy of integrated circuits and analog signal-processing devices. The LM324 family is commonly used for voltage buffering, sensor-interface conditioning, current-to-voltage conversion, audio paths, filters, and control loops. Its single-supply capability is useful when the signal and system share a common ground reference, while split-supply operation supports bipolar signals in applications where positive and negative rails are available. Verified feature data identifies the LM324 family as a next-generation LM324B and LM2902B offering, with B versions intended as drop-in replacements for LM224, LM324, and LM2902 versions. The listed operating supply range is 3 V to 36 V. The family also includes versions with input offset voltage specified as low as plus or minus 2 mV, 2 kV HBM ESD protection for B, BA, and K versions, and internal RF and EMI filtering for B and BA versions. These features support general-purpose analog designs where supply tolerance and input conditioning matter. The LM324D is packaged in the SOIC-14 footprint, making it suitable for conventional PCB assembly and educational, industrial-control, instrumentation, and embedded-control designs. The device is not a precision, rail-to-rail-input amplifier, so input common-mode range, output swing, input bias current, noise, slew rate, and stability behavior must be checked against the actual signal path. The four amplifiers share a package power supply but operate independently at their input, output, and feedback pins. Typical uses include four-channel sensor buffering, low-frequency active filtering, audio preamplification, DC gain stages, comparator-style threshold conditioning with suitable feedback arrangements, and general embedded analog interfaces. When designing around the LM324D, verify the supply rails, keep input and feedback connections short, provide stable bypass capacitance near the supply pins, and account for the amplifier’s output-current and thermal limits. The manufacturer product page and datasheet are the authoritative sources for exact electrical limits and ordering information. This page combines verified manufacturer and distributor links with application guidance and explicitly marks electrical details that were not supplied in the verified excerpts. The LM324D remains a practical choice when four general-purpose amplifiers, single-supply operation, and a standard SOIC-14 footprint are more important than precision or rail-to-rail performance.

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LM324DE4

LM324DE4 - Quad 1.2MHz Op Amp, 14-SOIC | Texas Instruments

Texas Instruments LM324DE4 is a general-purpose quad operational amplifier with four amplifiers, 1.2 MHz gain-bandwidth product, 0.5 V/µs slew rate, and a ±1.5 V to ±16 V supply range, packaged in a 14-pin SOIC. Each amplifier is designed for conventional analog signal-conditioning applications where low cost, wide supply-voltage operation, and four independent channels in one package are important. An operational amplifier is an amplifier IC that uses high open-loop gain and negative feedback to control gain accurately. The LM324 family combines four general-purpose amplifier channels with internal biasing, allowing each channel to operate without external bias-current compensation in typical applications. Within the semiconductor hierarchy, it belongs to the operational-amplifier, analog-amplifier, analog-IC, and integrated-circuit categories. The four internal channels can be configured as voltage followers, non-inverting or inverting amplifiers, summers, differential amplifiers, filters, comparators, and current-to-voltage converters. A 1.2 MHz gain-bandwidth product is appropriate for audio-frequency and general feedback-control circuits, while the 0.5 V/µs slew rate limits how quickly large voltage changes can be reproduced. The manufacturer datasheet identifies the device as a general-purpose amplifier with four circuits and a 14-pin SOIC package. The architecture makes efficient use of board area by placing four amplifiers in one package. Rail-to-rail output operation and the broad supply range allow the device to operate from single or dual supplies within the stated limits. Its 0.8 mA typical current drain is useful for low-power analog systems, although actual supply current depends on the number of active channels and load conditions. The package is suitable for conventional surface-mount PCB assembly. Typical LM324DE4 applications include audio preamplification, sensor signal conditioning, DC motor-control support circuits, battery-powered instrumentation, general-purpose filters, and active control loops. In multi-channel designs, the common package simplifies routing and inventory management while keeping each amplifier electrically independent. The amplifier should be selected when low bandwidth is acceptable and when a cost-conscious general-purpose implementation is more important than high-speed or low-noise performance. Design with adequate input common-mode range, output-current capability, and supply headroom. Decoupling capacitors should be placed close to the supply pins, and output loads must remain within the package and device thermal limits. Because the LM324DE4 is supplied in a tube, PCB assembly processes must support tube-fed components or require an approved conversion step before placement. This product page consolidates the exact LM324DE4 electrical and package specifications, verified same-package replacement information, a parameter comparison, application guidance, and practical PCB design notes. It is intended to accelerate component selection while preserving the distinction between exact-orderable versions and broader LM324-family devices.

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LM324DG

LM324DG - 4-Channel 1 MHz Op Amp, 3-32 V | onsemi

The onsemi LM324DG is a four-channel general-purpose operational amplifier with true differential inputs, 1 MHz gain-bandwidth product, 0.6 V/us slew rate, and a 3 V to 32 V supply range, housed in a 14-pin SOIC package. The four amplifiers share one package but operate independently, making the device suitable for compact analog signal-conditioning circuits that cannot justify four separate amplifiers. An operational amplifier, or op amp, is a voltage-controlled differential amplifier whose open-loop gain is used to amplify a difference between two input signals. The LM324 belongs to the broader amplifier IC hierarchy: operational amplifier, analog amplifier, semiconductor, and integrated circuit. Its true differential inputs and ability to operate from a single positive supply are particularly useful in circuits that do not have a negative reference rail. Key features include four amplifier channels in one package, a 1 MHz gain-bandwidth product, a 0.6 V/us slew rate, input offset voltage ratings of 5 mV to 7 mV depending on the cited source, and a minimum common-mode rejection ratio of 65 dB. The 3 V to 32 V operating supply range supports both low-voltage logic systems and conventional industrial analog circuits without requiring a separate negative supply. The LM324 architecture is intended for general-purpose voltage amplification rather than precision or high-speed signal conditioning. Its relatively wide input offset voltage and modest gain-bandwidth product make it most appropriate for audio, transducer, buffering, and feedback-control stages where moderate accuracy and bandwidth are sufficient. Designers should account for input offset when measuring small signals and verify gain-bandwidth requirements for closed-loop applications. Typical uses include microphone preamplification, active audio-channel amplification, low-frequency sensor interfaces, industrial control loops, and general buffer stages. Because each channel can be assigned to a different signal or function, four independent amplifier circuits can be implemented on one board while reducing component count and simplifying routing. The primary design consideration is the absence of a negative supply in many applications. Input and output signals must remain within the device's common-mode input and output swing limits, so a negative rail is not required but can improve signal-headroom flexibility. Input and output decoupling should follow the manufacturer datasheet's recommended application circuit, and unused amplifier inputs must be biased so they remain in a defined operating state. This product page consolidates the verified LM324DG specifications, distributor references, drop-in replacement candidates, package details, and practical design guidance. It also distinguishes direct same-package substitutes from functional alternatives so engineers can narrow a replacement search without assuming that every quad op amp is electrically or mechanically interchangeable.

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LM324DG4

LM324DG4 - Quad 1.2MHz Op Amp | Texas Instruments

The Texas Instruments LM324DG4 is a general-purpose, four-circuit operational amplifier with a 1.2 MHz unity-gain bandwidth, differential inputs, and a 14-pin SOIC package. It is designed for economical signal conditioning in industrial, instrumentation, control, and sensor-interface systems that operate from a single supply or split supply. Its four amplifiers share common supply pins but have independent input, output, and internal-offset connections. An operational amplifier is an active semiconductor device that amplifies the voltage difference between its differential inputs while using negative feedback to define closed-loop gain and bandwidth. The LM324 belongs to the operational-amplifier hierarchy, where it is also classified as a quad general-purpose amplifier, analog amplifier IC, and signal-conditioning semiconductor. This category makes the LM324 suitable for buffer, amplifier, comparator, differential, and current-to-voltage conversion circuits. The LM324DG4 combines four amplifiers in one 14-SOIC package, reducing component count and board area compared with four single-amplifier packages. Its 1.2 MHz gain-bandwidth product supports general-purpose signal amplification rather than high-speed precision work. The common-mode input range includes ground, which allows single-supply sensing of signals near the lower supply rail. A typical low supply-current drain of 0.8 mA per amplifier also supports power-conscious designs. The LM324 architecture is suited to low- and moderate-frequency closed-loop applications where economy, ease of use, and supply flexibility matter. Because the device includes internal bias compensation, external nulling components are not required for normal operation. The common-mode range includes ground but does not extend to the positive supply rail, so input and output headroom must be checked when signals approach either rail. Typical applications include sensor-signal conditioning, transducer amplification, current-to-voltage conversion, audio preamplification, low-frequency active filters, and general industrial control interfaces. In each case, the amplifier operates inside a negative-feedback network, and the closed-loop bandwidth and output swing must satisfy the signal amplitude and accuracy requirements. A key design consideration is rail-to-rail compatibility. The LM324 can operate from one supply or two supplies, but its output cannot swing fully to the positive rail and input signals must remain inside its common-mode range. Decoupling near the supply pins, stable feedback-component selection, and output-loading checks remain necessary even though the circuit is commonly used with basic resistor networks. This page combines the verified LM324DG4 device identity, package information, functional characteristics, source links, and engineering guidance with application-oriented selection criteria. It also distinguishes electrically meaningful alternatives from simple reel or tape packaging codes and highlights where compatibility checks are required before substitution.

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LM324DR

LM324DR - Quad 36V Op Amp | Texas Instruments | SOIC-14

The Texas Instruments LM324DR is a low-power, quadruple operational amplifier containing four independent, high-gain, internally frequency-compensated amplifiers in a 14-pin SOIC package. The verified product data identifies it as a general-purpose amplifier designed for operation from a single supply or split supply over a wide voltage range, with the B-family supply range specified as 3 V to 36 V. This quad topology lets one compact IC provide four separate analog signal-conditioning channels without requiring four discrete packages. An operational amplifier is an analog amplifier used in the wider semiconductor hierarchy of integrated circuits and analog signal-processing devices. The LM324 family is commonly used for voltage buffering, sensor-interface conditioning, current-to-voltage conversion, audio paths, filters, and control loops. Its single-supply capability is useful when the signal and system share a common ground reference, while split-supply operation supports bipolar signals in applications where positive and negative rails are available. Verified feature data identifies the LM324 family as a next-generation LM324B and LM2902B offering, with B versions intended as drop-in replacements for LM224, LM324, and LM2902 versions. The listed operating supply range is 3 V to 36 V. The family also includes versions with input offset voltage specified as low as plus or minus 2 mV, 2 kV HBM ESD protection for B, BA, and K versions, and internal RF and EMI filtering for B and BA versions. These features support general-purpose analog designs where supply tolerance and input conditioning matter. The LM324DR is packaged in the SOIC-14 footprint, making it suitable for conventional PCB assembly and educational, industrial-control, instrumentation, and embedded-control designs. The device is not a precision, rail-to-rail-input amplifier, so input common-mode range, output swing, input bias current, noise, slew rate, and stability behavior must be checked against the actual signal path. The four amplifiers share a package power supply but operate independently at their input, output, and feedback pins. Typical uses include four-channel sensor buffering, low-frequency active filtering, audio preamplification, DC gain stages, comparator-style threshold conditioning with suitable feedback arrangements, and general embedded analog interfaces. When designing around the LM324DR, verify the supply rails, keep input and feedback connections short, provide stable bypass capacitance near the supply pins, and account for the amplifier’s output-current and thermal limits. The manufacturer product page and datasheet are the authoritative sources for exact electrical limits and ordering information. This page combines verified manufacturer and distributor links with application guidance and explicitly marks electrical details that were not supplied in the verified excerpts. The LM324DR remains a practical choice when four general-purpose amplifiers, single-supply operation, and a standard SOIC-14 footprint are more important than precision or rail-to-rail performance.

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LM324DR2

LM324DR2 - 4-Op-Amp 32V 1MHz SOIC-14 | onsemi

onsemi LM324DR2 is a four-amplifier general-purpose operational amplifier integrated circuit with true differential inputs, designed for single-supply operation over a 3 V to 32 V supply range. Each of the four amplifiers supports rail-to-rail output swing, operates at approximately 1 MHz gain-bandwidth product, and offers a typical slew rate of 0.6 V/µs. The device is packaged in a 14-pin SOIC configuration identified as LM324DR2. An operational amplifier is an analog signal-conditioning semiconductor that compares two input voltages and amplifies the difference between them. The LM324 belongs to the quad operational-amplifier family within the broader voltage-amplifier and analog IC hierarchy. Its four amplifiers can perform amplification, buffering, voltage comparison, summation, subtraction, filtering, and transducer-interface functions while sharing one supply package. The LM324 series provides distinct advantages for single-supply systems. True differential inputs allow the amplifiers to operate around ground without requiring a dual supply in many common circuit arrangements. The input common-mode range includes ground, while the output stage can swing close to the negative supply under suitable load conditions. These characteristics make the device useful for battery-powered instrumentation, control loops, sensor interfaces, audio paths, and general industrial signal conditioning. Each amplifier is implemented with true differential input behavior rather than a simple differential-input architecture. The operating bandwidth is approximately 1 MHz, with a typical slew rate of 0.6 V/µs. The offset voltage specification reaches up to 9 mV, while the input bias current is typically 45 nA. The integrated design eliminates the need for four separate single-amplifier packages when a circuit requires several matched functional blocks. Typical uses include low-side current sensing, transducer buffering, active filtering, level shifting, comparator-style threshold circuits, and general instrumentation. The LM324DR2 is particularly suitable for cost-sensitive designs that need four amplifiers but do not require rail-to-rail input operation or the lower offset and bias current of precision amplifier families. Designers should verify input and output common-mode limits at the selected supply voltage and load. Because the output cannot normally reach the positive supply rail, headroom must be preserved when using the device as a buffer. Stable operation also depends on correct feedback compensation, suitable bypass capacitance, source impedance, and load drive. This product record combines the verified LM324DR2 identity and 14-SOIC configuration with practical guidance covering single-supply design, common-mode behavior, application selection, PCB implementation, and honest trade-offs among same-footprint quad-amplifier alternatives.

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LM324DR2G

LM324DR2G - Quad Op Amp, 3-32V, 1MHz SOIC-14 | onsemi

The onsemi LM324DR2G is a low-cost quad operational amplifier with four internally compensated, true-differential-input amplifiers in a 14-pin SOIC package, operating from a single 3V to 32V supply (or dual supplies up to +/-16V) with a 1 MHz gain-bandwidth product and 0.6 V/us slew rate. An operational amplifier (op-amp) is a high-gain voltage amplifier with differential inputs and a single-ended output, the foundational building block of the analog signal-chain hierarchy: op-amp -> amplifier IC -> analog front end -> mixed-signal system. The LM324 family is the industry-standard general-purpose quad op-amp, designed specifically for single-supply operation where its input common-mode range includes ground and its output swings to within tens of millivolts of the negative rail. Key features include a wide single-supply range of 3V to 32V, a common-mode input range that extends to the negative rail (ground-sensing capability), a typical input offset voltage of 5 mV (7 mV max per datasheet specifications), a minimum common-mode rejection ratio of 65 dB, and low supply current per amplifier that suits battery-powered designs. Four amplifiers in one SOIC-14 package reduce board area and BOM cost versus four single op-amps. The bipolar architecture is internally frequency-compensated, so no external compensation capacitors are required for unity-gain stability. Because all four amplifiers share one bias network, supply current is lower than four discrete units; however, channels can exhibit minor crosstalk in high-gain audio paths. Typical applications include transducer amplifiers, active filters, comparators (with caution regarding slow recovery), DC gain blocks, level shifters, and signal conditioning in industrial controls, consumer appliances, and automotive-adjacent systems. Designers should note the output stage is not rail-to-rail and can crossover-distort when sourcing current near the negative rail; biasing the output with a pull-down resistor mitigates this. Gain-bandwidth is 1 MHz, so keep closed-loop gains modest for bandwidth-critical circuits. This page adds value beyond the datasheet with distributor pricing tiers, verified drop-in alternatives, a parameter-by-parameter comparison table, and practical design notes not found on the manufacturer product page.

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LM324DRE4

LM324DRE4 - Quad 1.2MHz Op Amp | Texas Instruments | SOIC-14

Texas Instruments LM324DRE4 is a low-power, quadruple general-purpose operational amplifier packaged in a 14-pin SOIC. Each of its four independent amplifier sections supports single-supply or split-supply operation, features internal frequency compensation, and includes an input common-mode range that reaches ground. The device operates with low supply-current drain that is largely independent of supply voltage, making it suitable for portable instrumentation and low-power signal-processing systems. An operational amplifier is an analog signal-processing IC that uses high open-loop gain and negative feedback to amplify voltage differences. The LM324 belongs to the general-purpose op-amp family, a versatile subset of amplifier ICs used for buffering, amplification, comparisons, summing, filtering, and control applications. Its four independent sections allow one package to implement several analog functions without requiring four separate single-amplifier packages. The headline operating characteristics include a 1.2 MHz gain-bandwidth product, 0.5 V/us slew rate, and 0.8 mA typical supply-current drain. The 14-pin SOIC package measures 3.90 mm in body width and supports conventional surface-mount assembly. Each amplifier is internally frequency compensated, allowing operation as a closed-loop amplifier without external compensation components in standard configurations. LM324-family devices are designed for broad supply-voltage operation and can also work with positive and negative supplies. Their low quiescent current and ground-referenced common-mode input capability are useful in sensor interfaces powered from a single rail. The amplifier sections operate independently, although sharing the same package provides common supply and ground pins. Typical uses include low-frequency sensor signal conditioning, buffered analog inputs, DC voltage amplification, comparator-style threshold circuits, audio preamplification, and low-frequency active filters. Because the LM324 is intended for general-purpose, low-bandwidth signal conditioning rather than high-speed precision work, system design should account for its 1.2 MHz gain-bandwidth product and 0.5 V/us slew rate. A practical design consideration is common-mode and output range: an input or output operating point must remain inside the amplifier's usable voltage range. Place supply-bypass capacitors close to the supply and ground pins, and route sensitive input traces away from switching nodes and high-current return paths. This page combines package and application guidance with a focused replacement analysis, helping engineers distinguish electrical-compatible alternatives from merely similar quad op-amp families before committing a design to the SOIC-14 footprint.

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LM324DRG3

LM324DRG3 - 4-Channel 1.2MHz Op Amp | Texas Instruments

Texas Instruments LM324DRG3 is a four-channel, general-purpose operational amplifier packaged in a 14-pin SOIC. Each channel provides a 1.2 MHz gain-bandwidth product and a 0.5 V/µs slew rate, making the device suitable for general signal amplification, buffering, and basic analog-control applications. The LM324DRG3 operates from a single supply or split supply and contains four independent, high-gain, frequency-compensated amplifiers. An operational amplifier is a voltage-feedback analog IC that uses differential input voltage to control an amplified output. The LM324 family combines four amplifiers in one package, reducing component count and simplifying layout for low-frequency instrumentation, sensor interfaces, audio paths, and industrial control circuits. Its frequency compensation provides stable operation without an external compensation network in typical closed-loop configurations. The LM324DRG3 provides four general-purpose amplifier circuits, a 1.2 MHz gain-bandwidth product, and a 0.5 V/µs slew rate. Its supply current is listed at 0.8 mA typical, with low supply-current drain described as independent of supply voltage. These characteristics make it practical for battery-operated and low-power analog systems where bandwidth beyond audio and general instrumentation frequencies is not required. Each amplifier is independent, allowing one package to serve four separate signal channels. The device is designed for single-supply operation, split-supply operation, and standard feedback-control topologies. Because its bandwidth and slew rate are modest, applications requiring wideband precision, high output current, rail-to-rail input or output, or fast settling should use a more specialized amplifier family instead. Typical uses include low-frequency sensor conditioning, current-to-voltage conversion, audio preamplification, low-level signal buffering, and general industrial control loops. A common circuit places a resistive feedback network around each amplifier, uses the fourth channel for biasing or active filtering, and decouples the supply pins close to the package with a local bypass capacitor. Design around the 14-pin SOIC footprint and verify the exact pinout in the manufacturer pin-description table before assigning tracks. Keep input and feedback resistors close to their associated pins to minimize parasitic capacitance and oscillation risk. Check output swing, input common-mode range, output loading, and supply limits against the circuit operating points before production release. This page organizes the verified LM324DRG3 specifications, package information, comparisons, and design guidance into one engineering-focused reference. It also distinguishes exact drop-in options from broader functional alternatives and identifies where additional datasheet review is required before substitution.

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LM324DRG4

LM324DRG4 - Quad 1.2 MHz Op Amp | Texas Instruments

Texas Instruments LM324DRG4 is a low-power, general-purpose quadruple operational amplifier packaged in a 14-pin SOIC. It integrates four independent, high-gain, frequency-compensated amplifiers, and the product listing identifies a gain-bandwidth product of 1.2 MHz. Each amplifier can operate from a single supply or split supply, making the device suitable for general signal-conditioning and control functions that require multiple amplifier channels in one package. An operational amplifier is an analog integrated circuit that uses high open-loop gain and negative feedback to amplify small voltage differences. Quad operational amplifiers combine four individual amplifiers into one package, reducing component count and simplifying PCB routing compared with four separate single or dual amplifier packages. The LM324 family belongs to the broader operational-amplifier, analog-amplifier, and semiconductor hierarchy and is widely positioned for cost-sensitive, general-purpose applications. The LM324DRG4 provides four amplifier channels in one 14-SOIC package and supports operation across single- and split-supply arrangements. Its 1.2 MHz gain-bandwidth product is suitable for moderate-bandwidth signal amplification, while the internal frequency compensation simplifies closed-loop use. Because the device is intended for general-purpose work, designers should verify input common-mode range, output swing, input offset, supply current, and output-current requirements against the manufacturer datasheet for the intended application. Four independent channels permit simultaneous signal processing without crosstalk between amplifier sections. A typical quad device can implement two differential amplifiers, four voltage followers, cascaded gain stages, sensor-conditioning channels, or a mixture of these functions. The internal compensation architecture is intended to provide stable operation in common feedback configurations, but loop gain, source impedance, capacitive loading, and output drive still require application-level validation. Typical uses include low-frequency sensor interfaces, current-to-voltage conversion, general-purpose signal conditioning, industrial control blocks, audio preamplifier stages, and educational or prototype circuits. The single 14-SOIC package is especially useful when board area is constrained and several independent analog channels are required. It can also reduce assembly time and simplify power distribution because all four amplifier sections use the same supply pins. Designers should confirm the exact electrical limits before finalizing a circuit. In particular, single-supply operation can constrain the usable input and output ranges, and the common-mode and output-swing boundaries must not be confused with the supply-voltage limits. Input and output stability should also be checked when driving capacitive loads or operating with unusually high source impedances. This product record combines the manufacturer-defined device identity, package information, operating characteristics, compatible family options, application guidance, and PCB-focused design considerations. It also distinguishes documented facts from parameters that require direct confirmation in the manufacturer datasheet, helping engineers plan the LM324DRG4 for general-purpose analog designs before schematic release.

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LM324DST

LM324DST - Quad Op-Amp, 14-SOIC, Low Power | STMicroelectronics

The STMicroelectronics LM324DST is a quad general-purpose operational amplifier integrating four independent, internally frequency-compensated high-gain op-amp circuits in a 14-pin SOIC (SO-14) surface-mount package. It operates from a single supply and delivers an output current capability of approximately 70 mA per the LCSC product listing, with low power consumption and low input bias current. A quad op-amp is an integrated circuit that houses four separate operational amplifiers on one die. An operational amplifier is a high-gain DC-coupled voltage amplifier with differential inputs and, in this family, a single-ended output; it is the foundational building block of the analog signal-chain hierarchy (op-amp -> amplifier IC -> linear IC -> analog/mixed-signal semiconductor). Quad op-amps like the LM324x family are chosen when multiple amplification stages share a common supply and ground, halving board area versus four single op-amps. Key features of the LM324DST include four internally compensated amplifiers requiring no external frequency-compensation components, wide single-supply operation, and an output that swings close to the negative rail, which is valuable in single-supply designs. The common-mode input range extends to include the negative supply rail, enabling sensing near ground. The internal compensation is implemented on-chip, giving unity-gain stability without external capacitors. This makes the part forgiving in general-purpose amplification, active filtering, comparators (non-precision), oscillators, and transducer interface circuits. Typical applications include industrial signal conditioning, consumer audio preamplification, battery-powered instrumentation, and logic-level level-shifting or buffering where four matched gain blocks are needed on one rail. Design consideration: the LM324 class-B output stage can exhibit crossover distortion at light loads and near-zero output currents; for precision AC applications consider a rail-to-rail upgrade such as the TL074 (JFET input) after verifying bias-current requirements. This page synthesizes distributor pricing, verified drop-in alternatives, pinout data, and practical design notes not found in the manufacturer datasheet alone.

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LM324DT

LM324DT - Quad Operational Amplifier | STMicroelectronics

The LM324DT is a quad operational amplifier from STMicroelectronics, featuring four independent, high-gain, internally frequency-compensated op-amps designed to operate from a single power supply over a wide range of voltages. It operates from 3V to 32V (or ±1.5V to ±16V dual supply) and delivers a typical output current of 40mA per channel. The device is housed in a 14-pin SOIC 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, used in analog signal conditioning, filtering, and mathematical operations. The LM324 is a classic general-purpose op-amp family, known for its low cost, wide supply range, and ability to operate with a single supply, making it a staple in analog electronics. It sits within the hierarchy: operational amplifier -> linear amplifier -> analog IC -> semiconductor. Key features include a wide supply voltage range (3V to 32V), low supply current (typically 700µA per amplifier), common-mode input voltage range including ground, and short-circuit protected outputs. The LM324DT also features true differential input stage, which allows the input to go below ground when operating from a single supply, and it has a typical gain-bandwidth product of 1.3MHz. These features make it versatile for many analog applications. The LM324 uses a bipolar transistor architecture with a class-AB output stage, providing low output saturation voltage and high output current capability. It has an input offset voltage of typically 2mV and input bias current of typically 20nA, which are adequate for many precision applications. The device is internally frequency compensated for unity-gain stability, eliminating the need for external compensation components. Typical applications include transducer amplifiers, DC gain blocks, active filters, and general-purpose signal conditioning in industrial, automotive, and consumer electronics. Its single-supply operation makes it ideal for battery-powered devices and automotive sensor interfaces where a negative rail is not available. When designing with the LM324DT, ensure proper decoupling of the power supply pins with a 0.1µF ceramic capacitor close to the device. The output can swing close to the positive rail but not to the negative rail (ground) when using a single supply, so consider the output voltage range in your design. Also, avoid exceeding the absolute maximum supply voltage of 32V to prevent damage. 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 the LM324DT.

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LM324DTBR2

LM324DTBR2 - 3-32V Quad Op Amp | onsemi | TSSOP-14

onsemi LM324DTBR2 is a standard general-purpose quad operational amplifier with four amplifier circuits in a 14-pin TSSOP package. It operates from 3 V to 32 V, supports single-supply operation, and has a maximum input offset voltage of 5 mV. The LM324 series uses true differential inputs, making the device suitable for conventional amplifier, comparator, buffer, and low-frequency signal-conditioning circuits. An operational amplifier, commonly abbreviated op amp, is an analog semiconductor that amplifies the difference between two input voltages. The LM324 belongs to the broader operational amplifier -> voltage amplifier -> analog IC hierarchy. Its four independent channels make it efficient for designs requiring several analog functions on one board, while its wide supply range permits operation from low-voltage systems through industrial 24 V rails. The principal benefits are the integrated quad-channel configuration, a 3 V to 32 V operating range, and a 5 mV maximum input offset voltage. True differential inputs support input signals referenced to ground in single-supply systems. Its general-purpose architecture also makes it suitable for noninverting and inverting amplifiers, voltage followers, comparators, current-to-voltage conversion, and basic sensor interfaces when precision and speed requirements are modest. Internally, each channel provides differential input and single-ended output operation. The four channels share a common supply connection, while their input stages accept signals from ground to near the positive supply. Because the LM324 is intended primarily for low-cost, general-purpose designs, the application should not assume precision, high speed, rail-to-rail output, or low-noise operation unless those characteristics are separately confirmed for the selected device. Typical uses include four-channel sensor conditioning, industrial control interfaces, low-frequency audio signal paths, battery-powered monitoring equipment, and general analog measurement systems. In a single-supply circuit, designers should bias non-inverting inputs above ground to provide an operating common-mode range. The device is also useful in multiple independent gain stages where using four separate packages would increase board area and cost. A primary design consideration is to keep the input and feedback networks close to the amplifier pins and maintain adequate supply bypassing. The wide supply capability does not remove the need for stable reference and feedback components. Verify input offset, input bias current, output swing, gain-bandwidth, noise, and temperature limits against the manufacturer datasheet before using the LM324 for precision or safety-critical measurements. This page organizes the verified product identity, package information, sourcing questions, cross-reference alternatives, and practical circuit guidance into one engineering reference. It also distinguishes true same-package drop-in candidates from broader LM324 functional equivalents, helping designers avoid packages that require PCB changes.

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LM324DTBR2G

LM324DTBR2G - 4-Channel 32V Op Amp | onsemi | Industrial

The onsemi LM324DTBR2G is a general-purpose, four-circuit operational amplifier with true differential inputs, a 3 V to 32 V supply-voltage range, 5 mV input-offset voltage, 1 MHz gain-bandwidth product, and 0.6 V/µs slew rate. The device is supplied in a 14-pin TSSOP package configured for tape-and-reel handling. An operational amplifier is an analog signal-conditioning IC that compares two input voltages and amplifies the difference between them. In its wider hierarchy, the operational amplifier belongs to the amplifier IC family, the analog-processing family, and ultimately the semiconductor category. The LM324 series is specifically positioned as a low-cost general-purpose quad amplifier for single-supply applications, while also supporting conventional split-supply operation. Four independent amplifier sections in one package make the LM324DTBR2G useful where a board needs multiple buffered channels without allocating four separate packages. Its 32 V maximum supply voltage provides useful headroom for industrial, control, and instrumentation circuits. The 1 MHz gain-bandwidth product supports general-purpose gain and buffering rather than demanding high-speed signal-chain applications. The 5 mV input-offset voltage is especially relevant when the amplified differential signal is small or when system calibration must account for amplifier input offset. The LM324 architecture provides true differential inputs and internally compensated operation. Internally compensated amplifiers avoid the need for an external dominant-pole capacitor when operating in a conventional closed-loop configuration. This simplifies board design, although the bandwidth, output drive, and slew rate remain those of a general-purpose device rather than a precision or high-speed amplifier. Typical uses include sensor-signal conditioning, current-to-voltage conversion, low-frequency active filtering, general instrumentation, audio preamplification, and industrial control interfaces. The four-channel organization can also reduce board area when several independent low-frequency analog signals must be amplified or buffered. Application-specific checks should confirm output swing, input common-mode range, load capability, noise, and stability. Designers should place input and output bypassing capacitors close to their associated supply pins, maintain short feedback paths, and verify that the selected feedback network remains stable at the operating gain and capacitive load. Because this is a quad device, unused amplifier sections should still be configured conservatively to avoid floating inputs and unnecessary channel activity. This product page consolidates the manufacturer-family characteristics, exact package information, practical application guidance, and a conservative drop-in comparison. It also distinguishes confirmed substitutions from package-only or functionally similar parts that should not be treated as true PCB drop-ins.

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LM324EDR2G

LM324EDR2G - Quad Single-Supply Op Amp | onsemi | SOIC-14

The onsemi LM324EDR2G is a four-circuit, single-supply operational amplifier in a 14-pin SOIC package. It provides four independent amplifier channels in one package, making it suitable for compact analog signal-conditioning designs that require more than one amplifier function on the same board. The device is identified as a standard general-purpose instrumentation and buffer amplifier. An operational amplifier, commonly called an op amp, is a high-gain differential amplifier used to amplify, buffer, compare, or otherwise condition analog signals. The LM324 belongs to the quad operational-amplifier family, combining four amplifiers in one package. This integration reduces board area and simplifies designs that need several similar analog channels, such as sensor interfaces, filters, control loops, and signal conditioning stages. The LM324EDR2G is intended for single-supply operation, which is useful in systems powered from a positive rail with a ground reference. Its four-circuit arrangement allows designers to assign separate amplifiers to independent signal paths while retaining a common package and supply arrangement. The 14-pin SOIC package is a standard surface-mount option for through-hole assembly and conventional PCB manufacturing. The LM324 is a general-purpose amplifier rather than a precision or high-speed signal-chain device. Its four channels make it especially useful in designs where several moderate-bandwidth, moderate-accuracy amplifier functions are required. Common uses include buffering sensor outputs, amplifying low-level control signals, implementing simple active filters, driving ADC input stages, and providing gain in feedback-control circuits. In practical designs, the amplifier supply pins must be connected according to the manufacturer pinout, and each channel must have appropriate input and feedback components. Input common-mode range, output swing, noise, bandwidth, input bias current, output-current capability, and absolute maximum ratings should be checked against the manufacturer datasheet before finalizing the circuit. Decoupling capacitors should be placed close to the supply pins to reduce supply noise and improve transient response. Because the LM324 is a quad amplifier in a 14-pin SOIC, PCB layouts should preserve adequate clearance around adjacent pins and route sensitive input traces away from noisy switching nodes. The same package footprint and four-channel organization can simplify product-family standardization when a design moves between related quad operational amplifiers. This product page combines the manufacturer-family identity, package information, application guidance, comparison criteria, and practical layout considerations to support faster component selection and PCB planning.

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Produtos (39.000+)

LM324AM - 4-Channel 3-32V Low-Power Op Amp | Texas Instruments

LM324AM/NOPB - 4-Channel 1 MHz Op Amp | Texas Instruments

LM324AMX/NOPB - 32V Quad 1MHz Op Amp | Texas Instruments

LM324AN - Quad 30V 1.2MHz Op Amp | Texas Instruments

LM324AN/NOPB - Quad 1 MHz General-Purpose Op Amp | Texas Instruments

LM324ANE4 - Quad 14-PDIP Op Amp | Texas Instruments

LM324ANS - Quad 14-SO General-Purpose Op Amp | Texas Instruments

LM324AWPT - Quad Low-Power Op Amp, 1.3MHz, TSSOP-14 | STMicroelectronics

LM324BAIDR - Quad 36V 1.2MHz Op-Amp | Texas Instruments

LM324D - Quad 36V Op Amp | Texas Instruments | SOIC-14 (Tape & Reel)

LM324DE4 - Quad 1.2MHz Op Amp, 14-SOIC | Texas Instruments

LM324DG - 4-Channel 1 MHz Op Amp, 3-32 V | onsemi

LM324DG4 - Quad 1.2MHz Op Amp | Texas Instruments

LM324DR - Quad 36V Op Amp | Texas Instruments | SOIC-14

LM324DR2 - 4-Op-Amp 32V 1MHz SOIC-14 | onsemi

LM324DR2G - Quad Op Amp, 3-32V, 1MHz SOIC-14 | onsemi

LM324DRE4 - Quad 1.2MHz Op Amp | Texas Instruments | SOIC-14

LM324DRG3 - 4-Channel 1.2MHz Op Amp | Texas Instruments

LM324DRG4 - Quad 1.2 MHz Op Amp | Texas Instruments

LM324DST - Quad Op-Amp, 14-SOIC, Low Power | STMicroelectronics

LM324DT - Quad Operational Amplifier | STMicroelectronics

LM324DTBR2 - 3-32V Quad Op Amp | onsemi | TSSOP-14

LM324DTBR2G - 4-Channel 32V Op Amp | onsemi | Industrial

LM324EDR2G - Quad Single-Supply Op Amp | onsemi | SOIC-14