Amplifier ICs
Products (796)
OP2177ARZ - Dual Precision Low Noise Op Amp | Analog Devices
The OP2177ARZ from Analog Devices is a dual, precision, low-noise operational amplifier in an 8-lead SOIC package. It features extremely low offset voltage of 60 µV maximum, very low offset voltage drift of 0.7 µV/°C maximum, and low input bias current of 2 nA maximum. The amplifier operates from dual supplies of ±2.5 V to ±15 V and draws a low supply current of 400 µA per amplifier, making it suitable for battery-powered and precision instrumentation applications. 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 in signal conditioning, filtering, and mathematical operations. The OP2177 belongs to the precision op amp category, which prioritizes low offset voltage, low drift, and low noise over speed. Precision op amps are essential in applications where accuracy and stability are critical, such as medical instrumentation, industrial process control, and precision data acquisition systems. Key features of the OP2177ARZ include a low noise density of 8 nV/√Hz typical, high common-mode rejection ratio (CMRR), power supply rejection ratio (PSRR), and open-loop gain (AVO) all greater than 120 dB minimum. The output stage is stable with capacitive loads over 100 pF, and the device is specified over the extended industrial temperature range of -40°C to +125°C. The 8-lead SOIC package is compact and widely used, facilitating easy PCB layout and manufacturing. The OP2177 uses a precision bipolar process with laser-trimmed thin-film resistors to achieve its low offset and drift. The architecture provides excellent DC performance without the need for external nulling, simplifying design. The low supply current and wide supply range make it versatile for both single-supply and dual-supply applications. The device is fully specified for operation from -40°C to +125°C, ensuring reliable performance in harsh environments. Typical applications include precision instrumentation, thermocouple and RTD signal conditioning, active filters, and precision voltage references. The low noise and low offset make it ideal for high-resolution ADC driver circuits and sensor front-ends. In these applications, the OP2177's low noise ensures minimal signal degradation, while its low offset voltage maintains accuracy over temperature. When designing with the OP2177ARZ, ensure proper power supply decoupling with 0.1 µF ceramic capacitors close to the supply pins. The input common-mode range extends to the negative rail, but for best performance, keep inputs within the specified common-mode range. The output can swing close to the rails, but avoid heavy loads that may degrade linearity.
OP2177ARZ-REEL - Dual Precision Low-Noise Op Amp | Analog Devices
The Analog Devices OP2177ARZ-REEL is a dual precision operational amplifier from the OPx177 family, featuring extremely low offset voltage, low input bias current, low noise, and low power consumption. Housed in an 8-pin SOIC (R-8) package, this general-purpose amplifier integrates two op-amp channels on a single die, delivering 1.3 MHz gain-bandwidth product and rail-to-rail output swing capability for single-supply or dual-supply operation from ±2.5 V to ±15 V. A precision operational amplifier is a specialized analog IC designed to amplify the difference between two input voltages with high accuracy, minimal added noise, and minimal input-referred offset. Within the hierarchy of integrated circuits, the op-amp sits between basic amplifiers and complex signal-conditioning ASICs, and the precision low-noise variant specifically targets instrumentation, sensor signal chains, and audio front-ends where the amplifier must add negligible error to the input signal. Key features of the OP2177ARZ-REEL include maximum offset voltage of 60 µV typical, low input bias current in the nanoampere range, 8 nV/√Hz typical input voltage noise density, and stable operation with capacitive loads exceeding 1000 pF without external compensation. Outputs are stable with capacitive loads of over 1000 pF, simplifying PCB design in mixed-technology boards. The SOIC-8 (R-8) narrow-body package supports surface-mount reflow profiles and standard tape-and-reel packaging for high-volume assembly. Architecturally, the OP2177 uses precision bipolar input stages with laser-trimmed offset adjustment, achieving 0.7 µV/°C typical offset drift. The amplifier operates from a single supply as low as 5 V up to ±15 V dual rails and includes internal ESD protection on the inputs. The 1.3 MHz unity-gain bandwidth and 0.5 V/µs typical slew rate suit audio bandwidth, instrumentation, and active-filter applications rather than high-speed signal chains. Typical applications include precision instrumentation amplifiers, strain-gauge and thermocouple signal conditioning, active filters, audio preamplifiers, motor-control current-sense amplifiers, and reference buffers for high-resolution ADCs. The dual-channel integration saves board space versus two discrete single-channel op-amps while maintaining matched channel characteristics. For instrumentation, the low input bias current minimizes error across high-impedance sensor sources. When designing with the OP2177ARZ-REEL, place the device close to the sensor to minimize noise pickup on high-impedance input traces, and add 0.1 µF decoupling capacitors close to the supply pins. For dual-supply operation, ensure common-mode input range includes ground for true zero-sensing applications. This page synthesizes distributor pricing, drop-in SOIC-8 alternatives from Analog Devices and competitors, and practical design notes not found in the manufacturer datasheet alone.
OP2177ARZ-REEL7 - Dual Precision Low Noise Op Amp 1.3MHz | ADI
The Analog Devices OP2177ARZ-REEL7 is a dual, precision low-noise operational amplifier from the OPx177 family, offered in an 8-pin SOIC package on a 7-inch tape-and-reel. It features a 1.3 MHz gain-bandwidth product, 0.7 V/us slew rate, 15 uV typical input offset voltage, and 7.9 nV/rt(Hz) voltage noise density at 1 kHz. The amplifier operates from dual supplies of +/-2.5 V to +/-15 V. An operational amplifier (op amp) is a high-gain, differential-input, single-ended-output voltage amplifier that serves as a fundamental building block in analog electronics. Op amps are categorized by parameter emphasis into general-purpose, precision, low-noise, high-speed, and low-power families. The OP2177 belongs to the precision low-noise family, which optimizes DC accuracy (Vos, Ib, drift) alongside low spectral noise density for high-resolution measurement systems where both linearity and signal-to-noise ratio matter. Key features include an input offset voltage drift of 0.1 uV/degree C, a typical input bias current of 0.5 nA, and 500 uA quiescent current per amplifier. The bipolar input stage uses laser-trimmed thin-film resistors to achieve sub-100 uV offset without external nulling. Outputs are stable with capacitive loads exceeding 100 pF, which simplifies buffer and cable-driving designs by eliminating the need for isolation resistors. The OP2177 architecture pairs a precision bipolar input pair with a class AB output stage, delivering 10 mA minimum output current while keeping supply current below 1 mA per channel. The result is an amplifier suitable for low-power instrumentation that must still drive moderate loads such as ADC reference ladders, audio line outputs, and active-filter capacitors. Typical applications include precision data-acquisition front ends, thermocouple and RTD signal conditioning, precision active filters, and four-wire sensor current sensing. The 8-pin SOIC pinout is industry-standard, simplifying PCB retrofits into legacy OP-213 / OP-2177 sockets. When designing with this device, place 0.1 uF decoupling capacitors within 5 mm of pins 4 and 8, and keep input traces short. For best noise performance, choose low-impedance feedback networks (under 10 kohm) and avoid high-impedance nodes exposed to EMI. This page integrates distributor pricing, drop-in alternatives, and practical design notes beyond the manufacturer's datasheet to accelerate component selection and BOM optimization.
OP27AJ/883C - Low Noise Precision Op Amp | Analog Devices
The OP27AJ/883C is a low-noise, precision operational amplifier from Analog Devices, packaged in a hermetic TO-99-8 metal can. It combines the low offset and drift of the OP07 with high speed and low noise, making it ideal for precision instrumentation. Key specifications include a gain-bandwidth product of 8 MHz, a slew rate of 2.8 V/µs, and a maximum input offset voltage of 25 µV with a drift of 0.6 µV/°C. The device operates over a wide supply range and is specified for the military temperature range (-55°C to +125°C), reflecting its 883C military-grade qualification. 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 in signal conditioning, filtering, and mathematical operations. Op amps are categorized within the broader hierarchy of linear integrated circuits, which also includes comparators, voltage regulators, and instrumentation amplifiers. The OP27 belongs to the precision op amp subcategory, distinguished by low offset voltage, low drift, and low noise, essential for high-accuracy measurement systems. Key features of the OP27AJ/883C include ultra-low input noise voltage density of 3 nV/√Hz at 1 kHz, ensuring minimal signal degradation in sensitive applications. The device also offers a high open-loop gain of 1.8 million (125 dB), providing excellent linearity and accuracy. Its bipolar input stage with input bias current cancellation achieves low offset and drift without the need for external trimming. The TO-99-8 hermetic package provides robust environmental protection, suitable for harsh military and aerospace environments. Technically, the OP27 uses a classic bipolar process with a precision laser-trimmed thin-film resistor network to achieve its low offset and drift. The input stage is designed for low noise, with a noise voltage of 3 nV/√Hz and a current noise of 0.4 pA/√Hz. The device is internally compensated for unity-gain stability, simplifying design. It can operate from dual supplies ranging from ±4 V to ±18 V, or single supplies from 8 V to 36 V, offering flexibility in various circuit configurations. Typical applications include precision instrumentation amplifiers, thermocouple and strain-gauge signal conditioning, active filters, and data acquisition systems. The OP27's low noise and high gain make it suitable for medical instrumentation, such as ECG and EEG amplifiers, where signal integrity is critical. Its military-grade qualification ensures reliable operation in avionics and defense systems. When designing with the OP27AJ/883C, consider its input bias current of ±40 nA, which may require balancing resistors in high-impedance circuits. Additionally, the TO-99 metal can package requires careful handling to avoid damage to the leads. Proper decoupling of the power supply pins with 0.1 µF capacitors is recommended to maintain stability and reduce noise.
OP284FSZ-REEL7 - Dual 4MHz Rail-to-Rail Op Amp | ADI
The Analog Devices OP284FSZ-REEL7 is a dual-channel precision operational amplifier featuring rail-to-rail input and output swing, 4 MHz unity-gain bandwidth, and 4 V/us slew rate, all delivered from a single 8-pin SOIC_N package with tape-and-reel packaging for high-volume assembly. Each of the two amplifier channels operates from a single supply of 3 V to 36 V (or split +/-1.5 V to +/-18 V) and is rated for industrial temperature ranges of -40C to +125C. A precision rail-to-rail operational amplifier (often shortened to RRIO op amp) is a linear amplifier whose input common-mode and output swing can traverse both supply rails, enabling maximum dynamic range in low-voltage single-supply systems. The OP284 belongs to the broader hierarchy of operational amplifiers -> amplifiers -> analog ICs -> signal conditioning, where it is positioned for applications that demand both ac precision (wide bandwidth, low distortion) and dc precision (low offset, low bias current) in one device. Key features of the OP284FSZ-REEL7 include 4.25 MHz gain-bandwidth product, 4 V/us typical slew rate, 65 uV maximum input offset voltage, and rail-to-rail input and output operation on a single 3 V to 36 V supply. It is also characterized for low distortion and low noise, making it well suited for driving audio-class signal chains directly from low-impedance battery or USB rails. The OP284 uses a bipolar transistor input stage combined with a complementary output stage to deliver true rail-to-rail input and output performance. Per the manufacturer datasheet, the part is specified for operation across the full industrial temperature range and is fabricated on ADI's precision bipolar process, which trades slightly higher input bias current for very low input offset voltage drift over temperature. Typical applications include battery-powered instrumentation, portable audio front-end buffers, ADC and DAC driver circuits, active filter stages on a single supply, signal conditioning for industrial sensors (4-20 mA loops, strain gauges), and replacement of legacy OP-27-style amplifiers in modern single-rail designs. Its rail-to-rail swing also makes it attractive for multichannel data-acquisition front ends where every millivolt of headroom matters. Designers should bias the unused channel in a dual part (tie the non-inverting input to mid-supply and let the output sit at the rail) to minimize quiescent current draw and to prevent the unused section from oscillating and injecting noise into adjacent channels. This page synthesizes distributor pricing, same-brand and cross-brand drop-in alternatives, and practical design notes that go beyond the manufacturer datasheet alone to accelerate component selection.
OP295GSZ-REEL - Dual 85kHz Rail-to-Rail Op Amp | Analog Devices
The Analog Devices OP295GSZ-REEL is a dual, CBCMOS rail-to-rail operational amplifier in an 8-pin SOIC package (8-SOIC, 0.154" / 3.90 mm width), supplied on a 2500-piece tape-and-reel. The device delivers 75 uV max offset, 85 kHz gain-bandwidth product, and 0.03 V/us slew rate from a +/-1.5 V to +/-18 V (or single 3 V to 36 V) supply, drawing only 375 uA of supply current per amplifier. A rail-to-rail op amp (operational amplifier) is an analog amplifier whose output voltage swing reaches both the positive and the negative supply rails. Unlike a conventional op amp whose output can only approach within ~1-2 V of either rail, the rail-to-rail topology enables full dynamic range use of low-voltage supplies. Rail-to-rail amps sit in the broader hierarchy of op amps -> amplifiers -> analog ICs -> signal conditioning -> mixed-signal semiconductors, and they are essential building blocks whenever the signal swing must span the full supply range of a 5 V or 3.3 V system. Key features of the OP295 include true bipolar front-end stages combined with CMOS output stages (the CBCMOS architecture), which yield lower voltage noise (15 nV/sqrt(Hz) typical) and higher DC accuracy than pure-CMOS rail-to-rail parts. The OP295 output swings to within 5 mV of either rail at 10 kohm load and within 10 mV at 2 kohm load, while the input common-mode range includes both rails, providing true zero-in/zero-out capability for single-supply 3.3 V and 5 V systems. The CBCMOS architecture combines a bipolar input differential pair with CMOS output drivers, preserving the low offset drift (5 uV/C max) and low bias current (20 nA max) of precision bipolar amplifiers while delivering the rail-to-rail output swing that pure bipolar parts cannot. This makes the OP295 well suited for instrumentation buffers, sensor signal chains, and audio pre-amplifiers operating from a single low-voltage rail. Typical applications include portable instrumentation, precision signal conditioning for sensors, low-voltage single-supply data acquisition front-ends, audio pre-amplifier stages, and battery-powered transducer amplifiers. The wide supply range (3 V to 36 V single-supply) also allows the part to operate directly from industrial 24 V buses with no additional regulation. When designing with the OP295, remember that the input common-mode range extends to both rails, but the input stage uses bipolar transistors, so input bias current (~20 nA max) flows even when the inputs are near either rail. A 10 kohm feedback resistor network is a practical starting point; lower impedances waste quiescent current, higher impedances invite leakage and pickup.
OP297GSZ - Dual Precision Op Amp, 50µV Offset, SOIC-8 | Analog Devices
The Analog Devices OP297GSZ is a dual low-bias-current precision operational amplifier that combines precision performance with low power consumption in the industry-standard 8-pin SOIC package. It features a maximum input offset voltage under 50µV and offset drift below 0.6µV/°C, delivering precision previously reserved for larger packages. Each amplifier channel operates with extremely low input bias current (typically below 100pA), making the OP297 suitable for high-impedance sensor front-ends. An operational amplifier is a high-gain DC-coupled electronic voltage amplifier with differential inputs and a single-ended output, used as the fundamental building block of analog signal conditioning. Precision op amps extend this baseline with low offset, low drift, low noise, and high open-loop gain, enabling accurate amplification of millivolt-level signals without introducing errors. The OP297 belongs to the precision amplifier family within integrated circuits, sitting between general-purpose op amps (such as the LM358) and chopper-stabilized specialty amplifiers. Key specifications include a 500 kHz gain-bandwidth product, 150 mV/µs slew rate, open-loop gain exceeding 2000 V/mV, and supply current of typically 625 µA per amplifier. The device operates from ±2V to ±20V dual supplies (or +5V to +40V single supply), supporting both battery-powered and industrial ±15V analog systems. Its input stage is laser-trimmed for low offset, eliminating the need for external nulling in most applications. The OP297 employs a bipolar input stage optimized for picoampere-level bias currents, achieving precision levels that previously required JFET or chopper-stabilized inputs. Internal compensation provides stable unity-gain operation without external components, while the dual matched design ensures channel-to-channel tracking for instrumentation and differential amplifier circuits. Typical applications include precision strain-gauge and thermocouple signal conditioning, medical instrumentation amplifiers, active filters, precision integrators, and high-impedance sensor interfaces. The 8-pin SOIC footprint allows direct replacement of general-purpose dual op amps such as the LM358 or TL082 in precision upgrades without board re-layout. When designing with the OP297, observe the standard ±20V maximum supply limit and ensure input common-mode voltage stays within the specified range. The low input bias current means standard PCB cleanliness practices suffice, eliminating the Teflon standoff requirements of older electrometer-grade amplifiers. This page synthesizes distributor pricing, drop-in SOIC-8 alternatives from the OP297 family, and practical analog design notes not found in the manufacturer datasheet alone.
OP42ARC/883C - Fast Precision JFET Op Amp | Analog Devices
The OP42ARC/883C is a fast precision JFET-input operational amplifier from Analog Devices, designed for high-speed, high-accuracy signal conditioning. It delivers a symmetric 58 V/µs slew rate and is internally compensated for unity-gain stability, making it ideal for applications requiring fast settling and wide bandwidth. The device operates from a supply voltage of ±15 V and features a low input bias current of 20 nA, a common-mode rejection ratio of 94 dB, and a wide full-power bandwidth of 900 kHz. Housed in a 20-lead ceramic leadless chip carrier (CLCC-20), it is specified for the military temperature range of -55°C to +125°C, ensuring reliable performance in harsh environments. An operational amplifier (op amp) is a high-gain voltage amplifier with differential inputs and a single-ended output, used to perform mathematical operations such as addition, subtraction, integration, and differentiation in analog circuits. The OP42 belongs to the JFET-input op amp family, which offers very high input impedance and low input bias current, making it suitable for precision instrumentation and sensor interfaces. As a linear integrated circuit, it is a fundamental building block in analog signal processing, bridging the gap between sensors and analog-to-digital converters. Key features of the OP42ARC/883C include its symmetric slew rate of 58 V/µs, which ensures symmetrical large-signal response, and a fast settling time of 800 ns to 0.01%, enabling accurate acquisition in high-speed data acquisition systems. The device also offers a supply current of less than 6 mA, making it power-efficient for its speed class. Its JFET input stage provides low input bias current and high input impedance, reducing loading on high-impedance sources. The device is internally compensated for unity-gain operation, simplifying design and ensuring stability without external components. Technically, the OP42 uses a JFET input stage followed by a precision bipolar output stage, achieving a balance between speed and DC accuracy. The device is designed to upgrade circuits using the AD544, AD611, AD711, and LF400 by direct replacement, and it conforms to the standard 741 pinout with nulling to V-. This pin compatibility allows for easy upgrades in existing designs. The device's wide full-power bandwidth of 900 kHz and fast settling time make it suitable for high-frequency signal processing, while its low offset voltage and drift ensure precision in DC applications. Typical applications include high-speed data acquisition systems, precision instrumentation, active filters, and fast servo control loops. The OP42's high slew rate and settling time make it ideal for driving analog-to-digital converters (ADCs) and sample-and-hold circuits, where fast and accurate signal acquisition is critical. Its JFET input stage is also well-suited for photodiode amplifiers and other high-impedance sensor interfaces. When designing with the OP42ARC/883C, consider the supply voltage and decoupling. Use 0.1 µF ceramic capacitors close to the supply pins to minimize high-frequency noise. For optimal performance, ensure the input common-mode voltage stays within the specified range and provide adequate output load isolation if driving capacitive loads.
OP42AZ - High Speed Precision JFET Op Amp | Analog Devices
The OP42AZ is a high-speed, fast-settling precision operational amplifier from Analog Devices, featuring a JFET input stage for low input bias current and high input impedance. It is housed in an 8-pin CERDIP package and operates from dual supplies up to ±18V. The device delivers a symmetric slew rate of 58V/µs and is internally compensated for unity-gain stability, making it suitable for high-speed signal conditioning and data acquisition systems. An operational amplifier (op amp) is a high-gain voltage amplifier with differential inputs and a single-ended output, used to perform mathematical operations like addition, subtraction, integration, and filtering in analog circuits. The OP42AZ belongs to the class of precision JFET-input op amps, which combine low offset voltage and drift with very low input bias current, ideal for high-impedance sources. In the hierarchy of analog ICs, it sits under linear amplifiers, which are fundamental building blocks in signal processing chains. Key features of the OP42AZ include a gain-bandwidth product of 10MHz, a fast settling time of 1.2µs to 0.01%, and a low input bias current of 100pA. The device also offers a wide full-power bandwidth of 900kHz and operates with a supply current of less than 6mA, balancing speed with power efficiency. Its precision specifications, such as low offset voltage and low noise, make it suitable for demanding applications. Technically, the OP42AZ uses a JFET input stage to achieve high input impedance and low bias current, while a bipolar output stage provides high output drive capability. The amplifier is internally compensated, simplifying design by eliminating external compensation components. The symmetric slew rate ensures equal positive and negative signal handling, reducing distortion in high-speed waveforms. Typical applications include fast settling sample-and-hold circuits, high-speed integrators, active filters, and precision instrumentation amplifiers. The OP42AZ is also used in audio and video signal processing where high slew rate and low distortion are critical. Its 8-pin CERDIP package provides hermetic sealing for enhanced reliability in harsh environments. When designing with the OP42AZ, ensure proper power supply decoupling with 0.1µF ceramic capacitors close to the supply pins. The input common-mode range extends to the negative rail, but for best performance, keep inputs within the specified common-mode voltage range. Also, consider the thermal characteristics of the CERDIP package, which has a higher thermal resistance than plastic packages, and provide adequate heat sinking if power dissipation is significant.
OP42AZ/883 - Fast Precision JFET Op Amp | Analog Devices
The OP42AZ/883 is a high-speed, precision JFET-input operational amplifier from Analog Devices, designed for applications requiring fast settling and low noise. It features a symmetric slew rate of 58 V/µs and is internally compensated for unity-gain stability. The device operates over the full military temperature range of -55°C to +125°C and is packaged in a hermetic 8-pin CERDIP, ensuring reliability in harsh environments. 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 in signal conditioning, filtering, and instrumentation. The OP42AZ/883 belongs to the family of precision op amps, which prioritize accuracy and stability over raw speed, making them suitable for high-performance analog signal processing. Key features of the OP42AZ/883 include a 10 MHz gain-bandwidth product, a 58 V/µs slew rate, and a supply current of less than 6 mA. It offers a common-mode rejection ratio (CMRR) of 94 dB and a minimum voltage gain of 80,000, ensuring excellent accuracy in precision applications. The JFET input stage provides high input impedance and low input bias current, typically 80 pA, which is critical for high-impedance sensor interfaces. The OP42AZ/883 is internally compensated for unity-gain operation, simplifying design and ensuring stability without external components. Its fast settling time and low distortion make it ideal for data acquisition systems, active filters, and precision instrumentation. The device operates from dual supplies up to ±18 V, providing flexibility in various circuit configurations. Typical applications include high-speed data acquisition, precision analog-to-digital converter (ADC) drivers, and active filters in communication systems. The OP42AZ/883's military-grade temperature rating and hermetic package make it suitable for aerospace and defense applications where reliability is paramount. When designing with the OP42AZ/883, ensure proper decoupling of the power supply pins with 0.1 µF ceramic capacitors placed close to the device. The high slew rate can cause ringing if the output load is capacitive; a small series resistor may be needed to maintain stability.
OP42GSZ - High Speed Precision Op Amp | Analog Devices
The OP42GSZ is a high-speed, precision operational amplifier from Analog Devices, featuring a JFET input stage and a single amplifier in an 8-pin SOIC package. It offers a gain-bandwidth product of 10 MHz and a slew rate of 50 V/µs, making it suitable for fast signal processing applications. The device operates from dual supplies ranging from ±8V to ±20V, providing flexibility in various analog circuits. 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 in signal conditioning, filtering, and instrumentation. Op amps are categorized by parameters such as bandwidth, slew rate, input offset voltage, and noise. The OP42GSZ belongs to the precision amplifier family, optimized for accuracy and speed, and is commonly used in data acquisition, test equipment, and audio systems. Key features of the OP42GSZ include a fast settling time of 800 ns to 0.01%, a wide full-power bandwidth of 900 kHz, and a supply current of less than 6 mA. The JFET input provides high input impedance and low bias current, which is essential for high-impedance sensor interfaces. The device is internally compensated for unity-gain stability, simplifying design. Technically, the OP42GSZ uses a JFET-input architecture that combines the benefits of low noise and high speed. The symmetric slew rate of 50 V/µs ensures balanced performance for both positive and negative signal transitions. The device is designed to drive capacitive loads without oscillation, making it robust in practical applications. Typical applications include fast precision integrators, sample-and-hold circuits, and active filters. Its high slew rate and bandwidth make it ideal for video and RF signal processing, while its precision characteristics suit instrumentation and control systems. When designing with the OP42GSZ, ensure proper power supply decoupling with 0.1 µF ceramic capacitors close to the supply pins. The input common-mode range extends to the negative rail, but for best performance, keep inputs within the specified range. The device is RoHS compliant and available in tape and reel packaging.
OP42GSZ-REEL7 - Fast Precision JFET Op Amp | Analog Devices
The OP42GSZ-REEL7 is a fast precision JFET-input operational amplifier from Analog Devices, offered in an 8-pin SOIC package. It delivers a symmetric 58 V/µs slew rate and is internally compensated for unity-gain operation, making it suitable for high-speed signal conditioning. The device operates from dual supplies up to ±20 V and draws a supply current of less than 6 mA, balancing speed with power efficiency. An operational amplifier (op amp) is a high-gain voltage amplifier with differential inputs and a single-ended output, used in analog circuits for amplification, filtering, and signal conditioning. Op amps are fundamental building blocks in analog electronics, forming the basis of active filters, comparators, integrators, and many other circuits. The OP42 belongs to the JFET-input op amp family, which offers high input impedance and low input bias current, ideal for interfacing with high-impedance sources. Key features include a gain-bandwidth product of 10 MHz, a wide full-power bandwidth of 900 kHz, and a fast settling time of 800 ns to 0.01%. The input offset voltage is 5 mV maximum, and the common-mode rejection ratio is 94 dB nominal. The device is specified for industrial temperature grades and is RoHS compliant, ensuring suitability for a wide range of applications. The OP42 uses a bipolar process with JFET input stage, providing low noise and high speed. Its symmetric slew rate ensures balanced positive and negative signal transitions, reducing distortion in high-frequency applications. The unity-gain stability simplifies design, eliminating the need for external compensation components. Typical applications include high-speed data acquisition, precision instrumentation, active filters, and buffer amplifiers. The OP42 can directly replace devices such as the AD544, AD611, AD711, and LF400, offering an upgrade path for existing designs. Its fast settling time makes it ideal for sample-and-hold circuits and DAC output buffering. When designing with the OP42, ensure proper decoupling of the power supply pins with 0.1 µF ceramic capacitors placed close to the device. The input common-mode range extends to the negative rail, but for best performance, keep inputs within the specified range. The output can drive capacitive loads up to 100 pF without oscillation, but for larger loads, add a series resistor.
OP470GSZ - 5nV/√Hz Quad Op-Amp, 16-SOIC | Analog Devices
The Analog Devices OP470GSZ is a high-performance monolithic quad operational amplifier featuring exceptionally low voltage noise of 5 nV/√Hz maximum at 1 kHz, housed in a 16-pin SOIC (wide-body, 0.295 inch / 7.50 mm) package. It integrates four independently compensated op-amps on a single die, delivering precision comparable to the industry-standard OP27 while reducing board area and power. The device operates over ±4.5 V to ±18 V dual supplies with a typical gain-bandwidth product of 6 MHz and a 2 V/µs slew rate. An operational amplifier is a high-gain DC-coupled electronic voltage amplifier with differential inputs and a single-ended output, used as a building block in nearly every analog signal chain. The OP470 belongs to the precision op-amp sub-category (hypernym hierarchy: operational amplifier → amplifier IC → analog IC → semiconductor device), characterized by ultra-low noise, low offset voltage, and high open-loop gain. It is produced on a bipolar process that yields the combination of very low input-referred voltage noise, low input bias current, and high DC accuracy required for instrumentation applications. Key features include a maximum input offset voltage of 0.4 mV (typical 0.1 mV), an offset voltage drift of 2 µV/°C maximum, an open-loop gain of 1000 V/mV minimum, and a common-mode rejection ratio (CMRR) of 110 dB minimum. The quad topology, low quiescent current per amplifier, and absence of crossover distortion support use in low-noise audio, active filter, and multi-channel instrumentation designs that demand channel-to-channel matching. The OP470 architecture uses laser-trimmed thin-film resistors and a thermally balanced layout to minimize offset and drift. Its low noise density and high gain make it suitable for amplifying low-level transducer signals, while the 6 MHz GBW comfortably handles audio-bandwidth and modest servo-loop applications. The output stage is class A/AB and swings within approximately 2 V of each rail on heavy loads, preserving headroom in ±15 V systems. Typical applications include professional audio mixing consoles and microphone preamplifiers, precision multi-channel data-acquisition front ends, active filters and equalizers, medical instrumentation such as ECG and patient-monitoring analog front ends, and industrial process-control signal conditioning where four matched low-noise channels reduce circuit complexity. Industrial sensor signal conditioning and strain-gauge amplification also benefit from the quad precision topology. When designing with this part, bias-current-cancellation paths must be considered at the inputs because the OP470 is a bipolar device. Source impedances above a few tens of kilo-ohms can introduce offset errors that exceed the datasheet spec unless cancellation is added. Decouple each supply pin with a 0.1 µF ceramic plus a bulk tantalum/electrolytic capacitor placed as close to the package as possible. This page synthesizes distributor pricing, drop-in cross-references, and practical design notes for the OP470GSZ, extending the manufacturer datasheet with selection guidance and comparisons not found at a single OEM source.
OP470GSZ-REEL - Quad Low-Noise 6MHz Op Amp | Analog Devices
The Analog Devices OP470GSZ-REEL is a high-performance monolithic quad operational amplifier (4-channel op amp) supplied in a 16-pin SOIC wide-body package delivered on a 7-inch tape-and-reel carrier. It delivers 5 nV/√Hz maximum input voltage noise at 1 kHz, a gain-bandwidth product of 6 MHz, and a slew rate of 2 V/µs while operating from ±4.5 V to ±18 V dual supplies. A quad operational amplifier integrates four independent, internally-compensated op amps on a single silicon die. Belonging to the linear IC family (operational amplifiers -> amplifiers -> analog ICs -> integrated circuits), the quad topology is the standard building block for signal conditioning stages that need matched channels - instrumentation buffers, active filters, multi-channel ADC front-ends, and audio pre-amplifiers - while saving board area versus four discrete op amps. Key features include 0.4 mV maximum input offset voltage, 2 µV/°C maximum offset voltage drift, 1000 V/mV minimum open-loop gain, 110 dB outstanding common-mode rejection, and four channels of low-noise amplification per package. The OP470 conforms to the industry-standard 14-pin DIP quad pinout and is pin-compatible with OP11, LM148/149, HA4741, HA5104, and RM4156 quad op amps, allowing drop-in upgrades of legacy designs. The internal architecture uses bipolar junction transistor (BJT) input stages that yield 5 nV/√Hz spectral noise density and stable unity-gain behavior without external compensation capacitors. The very-high open-loop gain (1000 V/mV min) and 110 dB CMRR translate into excellent DC accuracy and rejection of power-supply common-mode noise, making the OP470 well-suited for precision instrumentation and professional audio front-ends. Typical applications include high-quality audio pre-amplifiers and mixing consoles, precision instrumentation amplifiers, multi-pole active filters, industrial process control signal chains, and ADC driver stages that demand low noise and low offset simultaneously. When designing with the OP470, ensure input common-mode voltage stays within the supply rails, allow adequate PCB ground-plane area near the exposed paddle region, and place 100 nF ceramic supply-bypass capacitors within 5 mm of each supply pin. For lowest offset, use the offset-null pins or select the OP470FY/OP470GP grades that are pre-trimmed. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes beyond the manufacturer datasheet.
OP90ARC/883C - Micropower Precision Op Amp | Analog Devices
The OP90ARC/883C is a high-performance, micropower operational amplifier from Analog Devices, designed for single-supply operation from 1.6 V to 36 V or dual supplies from ±0.8 V to ±18 V. Housed in a 20-lead ceramic leadless chip carrier (CLCC), this general-purpose op amp delivers precision performance with extremely low power consumption, making it ideal for battery-powered and portable instrumentation. An operational amplifier (op amp) is a high-gain voltage amplifier with differential inputs and a single-ended output, used in signal conditioning, filtering, and mathematical operations. The OP90 belongs to the family of micropower op amps, which are optimized for low quiescent current while maintaining adequate bandwidth and precision. This category sits within linear amplifiers, which are fundamental building blocks in analog signal processing chains. Key features of the OP90ARC/883C include its wide supply range, low supply current, and high precision. The device operates from a single supply as low as 1.6 V, enabling use in low-voltage systems. Its micropower design ensures minimal power drain, extending battery life in portable devices. The 883C suffix indicates compliance with MIL-STD-883, a military standard for microcircuits, ensuring high reliability and extended temperature range operation. Technically, the OP90 uses a bipolar process with a precision input stage that provides low offset voltage and drift. The amplifier is internally compensated for unity-gain stability, simplifying design. Its output stage can swing close to the rails, maximizing dynamic range in single-supply applications. The device also features low input bias current, making it suitable for high-impedance sensor interfaces. Typical applications include battery monitoring, portable medical devices, sensor signal conditioning, and industrial control systems. The wide supply range and low power make it versatile for both 3 V and 5 V systems, as well as industrial 24 V rails. The military-grade version ensures operation in harsh environments. When designing with the OP90ARC/883C, consider its bandwidth and slew rate limitations for high-frequency applications. For precision DC applications, the low offset and drift are advantageous. Proper decoupling and layout are essential to maintain performance.
OP90GSZ-REEL7 - Micropower Precision Op Amp | Analog Devices
The OP90GSZ-REEL7 is a precision, micropower operational amplifier from Analog Devices, offered in an 8-pin SOIC package on a 7-inch tape and reel. It operates from a single supply of 1.6V to 36V or dual supplies of ±0.8V to ±18V, with a typical supply current of only 20 µA maximum, making it ideal for battery-powered and portable instrumentation. The input voltage range includes ground, enabling true single-supply operation with signals down to 0V. The amplifier features a gain bandwidth product of 20 kHz and a slew rate of 0.012 V/µs, optimized for low-frequency precision applications rather than high-speed signal processing. 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 sensor interface circuits. It is a fundamental building block in analog electronics, forming the basis for comparators, buffers, integrators, and active filters. The OP90GSZ-REEL7 belongs to the category of precision op amps, which prioritize low offset voltage, low drift, and low noise over bandwidth, making them suitable for measurement and control systems where accuracy is paramount. Key features include a low supply current of 20 µA maximum, which extends battery life in portable devices, and an output drive capability of 5 mA minimum, allowing it to drive moderate loads. The input bias current is 4 nA, and the input offset voltage is typically 150 µV, ensuring high DC accuracy. The amplifier is specified for operation over the industrial temperature range of -40°C to +85°C, and it is RoHS compliant. The OP90GSZ-REEL7 uses a bipolar process technology that provides low noise and low offset, with a typical input voltage noise of 30 nV/√Hz. Its architecture includes a class AB output stage that can swing close to the rails, maximizing dynamic range in single-supply applications. The device is internally compensated for unity-gain stability, simplifying design. Typical applications include battery monitoring, portable medical devices, sensor signal conditioning, and low-power data acquisition systems. Its ability to operate down to 1.6V makes it suitable for 2-cell alkaline or single-cell lithium-ion battery applications. When designing with this amplifier, ensure that the common-mode input voltage does not exceed the specified range, and use appropriate decoupling capacitors on the supply pins to maintain stability. The low bandwidth means it is not suitable for high-frequency applications, but it excels in precision DC and low-frequency AC measurements.
OPA131U - 4MHz 50pA FET Op Amp | Texas Instruments
The Texas Instruments OPA131U is a single, general-purpose FET-input operational amplifier with 4 MHz gain-bandwidth product, 50 pA maximum input bias current, 750 µA power consumption, and an 8-pin SOIC package. It is designed for general-purpose signal conditioning where low input bias, low offset, and good dynamic performance are important. An operational amplifier, or op amp, is an analog integrated circuit that amplifies the voltage difference between its inverting and non-inverting inputs. The OPA131 belongs to the FET-input operational-amplifier family, where the input stage uses field-effect-transistor biasing rather than a bipolar input stage. This topology is useful when the source presents high impedance, because input bias current can disturb the source voltage and distort the measurement. The OPA131U combines a 4 MHz bandwidth with a 10 V/µs slew rate, according to the retrieved OPA131 data. Its maximum input offset voltage is 750 µV, and its input bias current is specified at no more than 50 pA. The wide supply range supports operation from ±18 V, while the low 750 µA power specification helps reduce system power when the amplifier operates across a broad range of analog signals. The device is available in an 8-pin SOIC package and is part of the broader OPAx131 family, which also includes dual and quad versions in industry-standard pinouts. Its general-purpose characteristics make it suitable for sensor interfaces, transimpedance amplification, audio signal conditioning, instrumentation, and buffering. The 10 V/µs slew rate supports faster signal transitions than a low-bandwidth precision-only amplifier, while the 4 MHz bandwidth is useful for moderate-frequency analog paths. OPA131U design decisions should focus on input-source impedance, supply voltage, output swing, noise requirements, and stability with capacitive loads. Because a single amplifier must be checked for bias-current effects and offset error, source resistance and bias-network resistance should be considered during input-stage design. The manufacturer product page and datasheet should be consulted for the complete electrical limits, pinout, and test conditions. This product data combines verified manufacturer and distributor information with application guidance and source citations. Pricing, availability, lifecycle status, and detailed comparison values must be confirmed against the latest distributor records before purchasing or releasing a production design.
OPA132U - 8MHz FET-Input Op Amp, Single, 8-SOIC | Texas Instruments
The Texas Instruments OPA132U is a single-channel, high-speed FET-input operational amplifier in an 8-pin SOIC package, providing 8 MHz of bandwidth, 20 V/µs slew rate, and 5 pA maximum input bias current. It operates from ±2.25 V to ±18 V dual supplies (or 4.5 V to 36 V single supply) and is specified over the -40 °C to +85 °C industrial temperature range. An operational amplifier (op amp) is a high-gain differential voltage amplifier that uses external feedback components to set closed-loop behavior such as gain, filtering, and signal conditioning. FET-input op amps use a junction field-effect transistor at the input stage rather than a bipolar transistor, delivering input bias currents orders of magnitude lower than their BJT counterparts. The OPA132 belongs to the SoundPlus audio op-amp family and sits in the broader hierarchy of linear ICs → amplifiers → operational amplifiers → precision audio op amps. Key features include a 130 dB open-loop gain (600 Ω load), 500 µV maximum offset voltage, 0.00008 % total harmonic distortion, and 5 pA maximum input bias current. The FET input stage enables direct interface to high-impedance sensors, photodiodes, and electret microphones without requiring bias-current compensation networks. Its 20 V/µs slew rate and 8 MHz gain-bandwidth product make it equally suitable for fast-settling data-acquisition front ends and low-noise audio signal paths. The OPA132 uses a complementary bipolar-FET input stage followed by a high-gain second stage and a class AB output, providing rail-swing to within ~1.5 V of either supply on 600 Ω loads. The architecture is unity-gain stable and includes internal ESD protection on all pins. Single, dual (OPA2132), and quad (OPA4132) versions share identical specifications for maximum design flexibility across channel counts. Typical applications include professional audio line drivers and headphone buffers, photodiode and pH-probe transimpedance amplifiers, high-impedance sensor signal conditioning, 16-bit and 18-bit ADC input buffers, and active filters for instrumentation. The 8-SOIC footprint and industry-standard pinout simplify PCB layout in both new designs and legacy upgrades. When designing with the OPA132U, place a 100 nF decoupling capacitor within 5 mm of each supply pin and use a ground plane to minimize parasitic inductance. For audio applications, keep input traces short and guarded to preserve the FET input's ultra-low bias current and avoid leakage paths on the PCB surface. This page synthesizes distributor pricing, drop-in SOIC-8 alternatives, and practical design notes not consolidated on the manufacturer datasheet, giving engineers a single reference for part selection, layout, and second-source decisions.
OPA137P - 36V, 1MHz FET Op Amp | Texas Instruments
Texas Instruments OPA137P is a single, low-cost, FET-input operational amplifier with a 36 V supply rating, 1 MHz gain-bandwidth product, and rail-to-rail input-to-positive-supply capability, housed in an 8-pin PDIP package. Its headline electrical values are 36 V maximum supply voltage, 1 MHz bandwidth, and 5 pA typical input bias current. The low-bias JFET input supports high-impedance sensing and measurement circuits, while the wide supply range accommodates industrial and bipolar-style signal chains. An operational amplifier is a voltage-gain building block that compares two input voltages and drives its output to represent their difference. The OPA137 belongs to the FET-input operational-amplifier family and combines low input current, low offset voltage, low quiescent current, and a moderate-speed, low-power design. This places it between general-purpose precision amplifiers and faster wideband amplifiers, making it suitable for analog signal conditioning rather than high-speed data conversion. Key features include approximately ±5 pA typical input bias current, 1.5 mV low offset voltage, operation to ±18 V supplies, 1 MHz bandwidth, and 120 μA per channel quiescent current in the series description. Rail-to-rail input extends the usable common-mode range toward the positive supply, improving dynamic range in single-supply systems. The manufacturer describes the OPA137 series as a low-cost FET-input MicroAmplifier family for miniature and cost-sensitive applications. The device uses a JFET-input architecture to achieve low input bias current while maintaining low power consumption. Its open-loop gain is listed as 145 dB in the manufacturer datasheet, while the 1 MHz bandwidth supports audio and general analog signal paths. The amplifier is intended for instrumentation, buffering, filtering, and precision analog interfaces where low input loading and moderate speed are more important than multi-gigahertz bandwidth. Typical uses include sensor-interface conditioning, low-level current measurement, audio preamplification, analog filtering, and precision signal buffering. In a current-to-voltage converter, the low input bias current minimizes error across a high-value feedback resistor. In an audio preamplifier, the 1 MHz bandwidth is suitable for voice-band and general audio stages when operated within the device's stated supply and stability limits. Designers should verify common-mode and output-swing limits for the actual supply voltage, provide stable feedback compensation, and account for input and output parasitics. Because the OPA137P is a single amplifier in an 8-pin PDIP, PCB layout must follow the exact manufacturer pinout rather than assuming the pin functions of the SOT-23-5 or MSOP-8 family variants. This page combines the verified Texas Instruments product information, distributor package and inventory references, and practical selection guidance. It also distinguishes confirmed family-level specifications from package-specific data and identifies replacement candidates only when the same-package pin compatibility and parametric match can be substantiated.
OPA1612AIDR - 1.1nV/√Hz Dual Audio Op Amp | Texas Instruments
The Texas Instruments OPA1612AIDR is a dual-channel, bipolar-input audio operational amplifier with 1.1 nV/√Hz noise density, 0.000015% distortion at 1 kHz, and rail-to-rail output swing in an 8-pin SOIC package. The two amplifiers share a package but operate independently, making the device suitable for stereo audio signal paths, active filtering, line-level buffering, and precision analog front ends. What is a bipolar-input operational amplifier? A bipolar-input operational amplifier uses bipolar transistor input devices to provide low-voltage noise and precise analog signal handling. In the broader hierarchy, an operational amplifier is an analog IC, an amplifier IC, and part of a signal-conditioning or active-filter system. Audio applications require low noise, low total harmonic distortion, adequate output drive, and predictable behavior with capacitive and feedback networks. The verified data identifies the OPA1612 as a high-performance audio amplifier with 1.1 nV/√Hz noise density. The manufacturer datasheet states rail-to-rail output swing to within 600 mV with a 2 kΩ load and output drive capability of ±30 mA. Those figures help preserve dynamic range and allow the amplifier to drive downstream audio stages more effectively than a low-current precision op amp. The OPA1612AIDR is identified as an 8-SOIC, dual-circuit device. The bipolar input architecture is intended for low-noise audio signal conditioning rather than general-purpose low-power sensing. Its distortion specification of 0.000015% at 1 kHz is particularly relevant for headphone buffers, mixing-console stages, active crossovers, and studio signal paths. The rail-to-rail output characteristic improves usable swing near the supply limits, although input and output common-mode behavior must still be checked against the system rails. Typical applications include stereo line-input amplification, headphone-driver buffering, active low-pass and high-pass filters, microphone preamplifier stages, audio ADC drivers, and balanced audio signal-chain interfaces. The dual-channel configuration reduces the number of amplifiers required in a stereo design while keeping the two channels in one standard 8-SOIC footprint. The principal design consideration is to preserve low-noise performance with suitable bypassing, stable feedback compensation, and careful grounding. Keep input and feedback traces short, place decoupling capacitors close to the supply pins, and account for the amplifier’s ±30 mA output-drive capability when selecting the next stage. For a direct PCB substitution, confirm the exact package, pinout, supply range, and electrical limits against the replacement datasheet.
OPA1642AIDR - Dual JFET Audio Op Amp | Texas Instruments
The Texas Instruments OPA1642AIDR is a dual SoundPlus™ high-performance, JFET-input audio operational amplifier specified for high-end audio applications, supplied in an 8-pin SOIC (D) package on tape and reel. It delivers 5.1 nV/√Hz input voltage noise density, 0.00005% THD+N, and rail-to-rail output swing that increases headroom in low-voltage single-supply designs. Each channel integrates a precision JFET input stage, EMI/RFI-hardened inputs, and Unity-Gain Stable topology, providing the combination of low noise, low distortion, and high input impedance required by professional audio signal chains. A JFET-input operational amplifier is a type of analog amplifier whose input stage uses junction field-effect transistors instead of bipolar transistors, yielding extremely low input bias current and high input impedance while presenting a near-ideal voltage-follower load to preceding sources. The OPA1642 belongs to the broader hierarchy of audio operational amplifiers (audio op amp → operational amplifier → amplifier IC → integrated circuit → semiconductor), and within that taxonomy it sits in the high-performance sub-class defined by sub-1 µVrms noise floors and harmonic distortion below 0.001%. Because audio signal quality is dominated by the op amp's intrinsic noise and linearity, parts like the OPA1642 directly set the achievable dynamic range and channel separation of line-level stages, headphone amplifiers, ADC input buffers, and DAC I/V converters. The OPA1642AIDR combines 5.1 nV/√Hz noise density, 0.00005% THD+N, ±2.5 mV typical input offset voltage, and a 2 pA typical input bias current. The 8-SOIC variant specified here runs over a -40 °C to +85 °C commercial temperature range and operates from ±2.25 V to ±18 V dual supplies or 4.5 V to 36 V single supply. Internal EMI/RFI filters on the input pins suppress conducted and radiated interference that otherwise leaks into the audio band from nearby switching converters or wireless modules. The output swings within ~600 mV of either rail at 2 kΩ load, giving the designer extra usable dynamic range in 5 V and 6 V single-supply audio paths. The JFET front end eliminates the input-bias current errors that plague bipolar audio op amps, while the bipolar output stage delivers the high slew rate and clean large-signal response required by professional-grade equipment. Designers should still observe the datasheet's input common-mode range, output swing, and decoupling recommendations; this configuration provides single-channel noise below 1 µVrms and channel separation exceeding the limits of typical board layouts. Typical applications include high-fidelity preamplifier stages, professional mixing-console line inputs, headphone amplifiers, active crossover filters, studio microphone preamps, and DAC I/V conversion networks. Compared to general-purpose op amps such as the TL072, the OPA1642AIDR offers an order-of-magnitude lower noise and lower distortion, making it a clear upgrade where source-impedance is moderate. This page synthesizes distributor pricing, drop-in alternative guidance, and practical design notes that complement the manufacturer datasheet.
OPA1688 - 36V 10MHz Low Noise Audio Op Amp | TI
The Texas Instruments OPA1688ID is a 36-V, single-supply, low-noise SoundPlus audio operational amplifier operating on supplies from 4.5 V (±2.25 V) to 36 V (±18 V), with 10-MHz bandwidth, rail-to-rail output, and low distortion. It is offered in SOIC-8 and WSON-8 packages. An operational amplifier (op amp) is a high-gain voltage amplifier with differential inputs and a single-ended output, fundamental to analog signal conditioning, filtering, and amplification. The OPA1688 belongs to the SoundPlus family of audio op amps, optimized for low noise, low distortion, and high output drive within the broader linear amplifier category used across audio, instrumentation, and communication systems. Key features include 4.5 nV/√Hz input voltage noise, an 8 V/µs slew rate, and low quiescent current of 1.5 mA per channel. Excellent capacitive load stability allows direct drive of up to 1000 pF without oscillation, and ±75 mA output current enables direct headphone drive. The rail-to-rail output (RRO) stage maximizes dynamic range in single-supply designs. Technically, the OPA1688 uses a complementary bipolar input stage with laser-trimmed input offset voltage of 0.5 mV (typical). The wide supply range supports both battery-powered and industrial systems, and the -40C to +85C operating range ensures reliability in demanding environments. THD+N of 0.00005% at 1 kHz and high PSRR preserve signal fidelity in high-fidelity audio paths. Typical applications include headphone amplifiers, audio DAC output buffers, active filters, and professional audio mixing consoles. High output current and capacitive load stability make it especially suited to direct headphone drive, while low noise and distortion preserve audio integrity in portable devices where 1.5 mA quiescent current extends battery life. Design tip: decouple supply pins with 0.1 µF ceramic capacitors placed close to the device, keep feedback paths short to minimize parasitic capacitance, and use an isolation resistor for capacitive loads beyond 1000 pF. Pricing references are as of 2026-08-30.
OPA170AIDBVT - 36V, 1.2MHz, Low-Power Op Amp | Texas Instruments
The Texas Instruments OPA170AIDBVT is a single-channel, 36-V, 1.2-MHz, low-power operational amplifier (op amp) in a 5-pin SOT-23 (DBV) package, offering rail-to-rail output swing and excellent DC precision for cost-sensitive general-purpose applications. According to the manufacturer datasheet, the device operates on supplies from 2.7 V (±1.35 V) to 36 V (±18 V), supports 1.2 MHz unity-gain bandwidth, and delivers low offset voltage with low quiescent current. What is a low-power operational amplifier? A low-power op amp is a class of analog amplifier IC designed to operate on single or dual supplies while consuming minimal quiescent current, enabling battery-powered and energy-efficient designs. Low-power op amps sit within the broader operational amplifier family, which belongs to linear ICs and the signal-conditioning product hierarchy. They balance bandwidth, offset, and noise against supply current, making them ideal for always-on sensor interfaces and portable instrumentation. Key features include rail-to-rail output (RRO), an enable/shutdown pin for power sequencing, low offset voltage, low drift over temperature, and 1.2 MHz gain-bandwidth product. The device also provides ESD protection on the inputs/outputs and is specified over the -40 °C to +125 °C industrial temperature range. The 5-pin SOT-23 footprint enables extremely compact PCB designs for space-constrained analog front ends. Architecturally, the OPA170 uses a bipolar input stage with CMOS output stages for rail-to-rail swing, and the family (OPA170/OPA2170/OPA4170) shares identical specifications across single, dual, and quad versions for easy design portability. The combination of 36 V tolerance, low quiescent current, and small packaging positions the OPA170 as a strong fit for industrial sensors, transducer signal conditioning, and active filtering. Typical applications include current sensing in power management, transducer amplifiers for pressure/flow sensors, active filters, test equipment input buffers, and general-purpose signal conditioning for industrial control and battery-powered systems. Designers choose the OPA170 family when they need robust 36 V tolerance, low power, and rail-to-rail output in a tiny footprint. When designing with this device, place a 0.1 µF decoupling capacitor as close as possible to the power-supply pin and ensure input common-mode range is respected. The shutdown/enable pin allows direct power-rail control in low-power duty-cycled applications. This page synthesizes verified distributor pricing, parametric drop-in alternatives, and practical design guidance not found in the manufacturer datasheet, all anchored to the official TI OPA170 datasheet as of 2026-10-09.
OPA171AIDRLT - 36V 3MHz Single Op Amp | Texas Instruments
The Texas Instruments OPA171AIDRLT is a single-channel, 36V, 3MHz, low-power operational amplifier (op amp) in a 5-pin SOT-553 (DRL) micropackage with rail-to-rail output (RRO). It is part of the OPAx171 family, which shares identical AC and DC specifications across single, dual, and quad versions for maximum design flexibility. The device operates from a single supply of 2.7V to 36V (or dual ±1.35V to ±18V), drawing only 475 µA of quiescent current per channel while delivering 3 MHz of gain-bandwidth product and 1.5 V/µs slew rate. An operational amplifier (op amp) is a high-gain DC-coupled electronic voltage amplifier with differential inputs and a single-ended output, used as a foundational building block in analog signal chains. Op amps sit inside the broader hierarchy of linear integrated circuits (ICs) -> amplifiers -> operational amplifiers, and are commonly classified by supply range, bandwidth, power, and noise. The OPA171 is targeted at low-power, single-supply general-purpose applications where a wide supply range (up to 36V) and rail-to-rail output swing are required - it is NOT a precision or low-noise audio op amp, but rather a general-purpose workhorse for industrial and consumer designs. Key features of the OPA171AIDRLT include 3 MHz GBW, 1.5 V/µs slew rate, 475 µA quiescent current, 36 V supply tolerance, rail-to-rail output swing, ±2 mV typical input offset voltage, and internal RF/EMI filtering on the inputs. The SOT-553 (DRL) package is a low-profile (~0.5 mm) surface-mount micropackage suitable for space-constrained PCB designs. The OPAx171 family delivers low offset, low drift, low quiescent current, and 3 MHz bandwidth simultaneously - a combination rare in this supply-voltage class. Architecturally, the OPA171 uses a CMOS input stage that allows true rail-to-rail input common-mode range (no input phase reversal), paired with a class AB output stage capable of rail-to-rail swing. Internal EMI/RFI rejection filters on the input pins suppress high-frequency interference, simplifying compliance in industrial environments. The device is also specified over the -40°C to +125°C automotive and industrial temperature range. Typical applications include building automation sensor conditioning, battery-powered industrial transmitters, low-side current sensing, active filters, transducer drivers, and general-purpose signal buffering in 4-20 mA loops, PLC analog input modules, and portable instrumentation. The wide supply range (2.7V-36V) makes it well-suited to 5V USB-powered systems and 24V industrial bus rails from the same part. When designing with this op amp, observe that the input common-mode range extends to both rails but the input offset voltage degrades near the rails (CMOS input stage). Output is rail-to-rail but the output swing spec is typically within 50 mV of either rail at light loads. Decouple the supply pin with at least 0.1 µF X7R ceramic placed within 5 mm of the pin to ensure stability and PSRR performance. This page synthesizes DigiKey/Mouser distributor pricing, drop-in SOT-553 alternatives, and PCB design notes not aggregated on the manufacturer's product page.