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Precision op amps (Vos<1mV)

OPA391

ACTIVE

Micropower, single, high-precision low-bias-current RRIO op amp with high speed-to-power ratio

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Data sheet

OPA391

ACTIVE
Data sheet Order now

Product details

Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.5 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 1.7 Vos (offset voltage at 25°C) (max) (mV) 0.045 GBW (typ) (MHz) 1 Features e-Trim™ Slew rate (typ) (V/µs) 1 Rail-to-rail In, Out Offset drift (typ) (µV/°C) 1 Iq per channel (typ) (mA) 0.024 Vn at 1 kHz (typ) (nV√Hz) 60 CMRR (typ) (dB) 121 Rating Catalog Operating temperature range (°C) -40 to 125 Input bias current (max) (pA) 0.8 Iout (typ) (A) 0.06 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) -0.1 Input common mode headroom (to positive supply) (typ) (V) 0.1 Output swing headroom (to negative supply) (typ) (V) 0.003 Output swing headroom (to positive supply) (typ) (V) -0.003 THD + N at 1 kHz (typ) (%) 0.002
Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.5 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 1.7 Vos (offset voltage at 25°C) (max) (mV) 0.045 GBW (typ) (MHz) 1 Features e-Trim™ Slew rate (typ) (V/µs) 1 Rail-to-rail In, Out Offset drift (typ) (µV/°C) 1 Iq per channel (typ) (mA) 0.024 Vn at 1 kHz (typ) (nV√Hz) 60 CMRR (typ) (dB) 121 Rating Catalog Operating temperature range (°C) -40 to 125 Input bias current (max) (pA) 0.8 Iout (typ) (A) 0.06 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) -0.1 Input common mode headroom (to positive supply) (typ) (V) 0.1 Output swing headroom (to negative supply) (typ) (V) 0.003 Output swing headroom (to positive supply) (typ) (V) -0.003 THD + N at 1 kHz (typ) (%) 0.002
SOT-SC70 (DCK) 5 2.5 mm² 2 x 1.25
  • Low IQ: 24 µA
  • Gain bandwidth product: 1 MHz
  • Low input bias current: 10 fA
  • Low offset voltage: ±45 µV (maximum)
  • Low drift: ±1.2 µV/°C
  • Low supply voltage operation: 1.7 V to 5.5 V
  • Input common mode range ±100 mV beyond rail
  • Fast slew rate: 1 V/µs
  • High load capacitance drive
  • High output current drive: 60 mA
  • Rail-to-rail output
  • EMI/RFI filtered inputs
  • Small package options: SC-70, DSBGA
  • Low IQ: 24 µA
  • Gain bandwidth product: 1 MHz
  • Low input bias current: 10 fA
  • Low offset voltage: ±45 µV (maximum)
  • Low drift: ±1.2 µV/°C
  • Low supply voltage operation: 1.7 V to 5.5 V
  • Input common mode range ±100 mV beyond rail
  • Fast slew rate: 1 V/µs
  • High load capacitance drive
  • High output current drive: 60 mA
  • Rail-to-rail output
  • EMI/RFI filtered inputs
  • Small package options: SC-70, DSBGA

The OPA391 and OPA2391 ( OPAx391) feature a unique combination of high bandwidth (1 MHz) along with very-low quiescent current (24 µA) in high-precision amplifiers. These features combined with rail-to-rail input and output make these devices an exceptional choice in high-gain, low-power applications. Ultra-low input bias current of 10 fA, only 45 µV of offset (maximum), and 1.2 µV/°C of drift over temperature help maintain high precision in ratiometric and amperometric sensor front ends that have demanding low-power requirements.

The OPAx391 use Texas Instrument’s proprietary e‑trim™ operational amplifier technology, enabling a unique combination of ultra-low offset and low input offset drift without the need for any input switching or auto-zero techniques. The CMOS-based technology platform also features a modern, robust output stage design that is tolerant of high output capacitance, alleviating stability problems that are common in typical low-power amplifiers.

The OPA391 and OPA2391 ( OPAx391) feature a unique combination of high bandwidth (1 MHz) along with very-low quiescent current (24 µA) in high-precision amplifiers. These features combined with rail-to-rail input and output make these devices an exceptional choice in high-gain, low-power applications. Ultra-low input bias current of 10 fA, only 45 µV of offset (maximum), and 1.2 µV/°C of drift over temperature help maintain high precision in ratiometric and amperometric sensor front ends that have demanding low-power requirements.

The OPAx391 use Texas Instrument’s proprietary e‑trim™ operational amplifier technology, enabling a unique combination of ultra-low offset and low input offset drift without the need for any input switching or auto-zero techniques. The CMOS-based technology platform also features a modern, robust output stage design that is tolerant of high output capacitance, alleviating stability problems that are common in typical low-power amplifiers.

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Technical documentation

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Type Title Date
* Data sheet OPAx391 Precision, Ultra-Low IQ, Low Offset Voltage, e-trim™ Operational Amplifiers datasheet (Rev. C) PDF | HTML 19 Dec 2022
Application note Impact of Current Noise in CMOS and JFET Amplifiers PDF | HTML 04 May 2023
Application note How to Select Amplifiers for Pressure Transmitter Applications (Rev. B) PDF | HTML 14 Feb 2023
Technical article Designing signal chains for portable diagnostics 18 May 2022
Application note Amplifier Input Common-Mode and Output-Swing Limitations PDF | HTML 14 Jan 2022
Technical article Do I need more slew rate or bandwidth in my high-speed, low-side current shunt measurement? 21 Sep 2021
Application note Offset Correction Methods: Laser Trim, e-Trim, and Chopper (Rev. C) PDF | HTML 13 Apr 2021

Design & development

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Evaluation board

DIP-ADAPTER-EVM — DIP adapter evaluation module

Speed up your op amp prototyping and testing with the DIP adapter evaluation module (DIP-ADAPTER-EVM), which provides a fast, easy and inexpensive way to interface with small surface-mount ICs. You can connect any supported op amp using the included Samtec terminal strips or wire them (...)

User guide: PDF
Not available on TI.com
Evaluation board

DIYAMP-EVM — Universal do-it-yourself (DIY) amplifier circuit evaluation module

The DIYAMP-EVM is an evaluation module (EVM) family that provides engineers and do it yourselfers (DIYers) with real-world amplifier circuits, enabling you to quickly evaluate design concepts and verify simulations. It is available in three industry-standard packages (SC70, SOT-23 and SOIC) (...)

User guide: PDF | HTML
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Simulation model

OPAx391 PSpice Model (Rev. B)

SBOMBK1B.ZIP (28 KB) - PSpice Model
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Simulation model

OPAx391 TINA-TI Reference Design (Rev. A)

SBOMBJ9A.TSC (333 KB) - TINA-TI Reference Design
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Simulation model

OPAx391 TINA-TI SPICE Model (Rev. A)

SBOMBK0A.ZIP (11 KB) - TINA-TI Spice Model
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Calculation tool

ANALOG-ENGINEER-CALC — Analog engineer's calculator

The analog engineer’s calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting operational-amplifier (...)
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Calculation tool

OPAMP-NOISECALC — Noise Calculator

This folder contains three tools to help in understandning and managing noise in cicuits. The included tools are:

  • A noise generator tool - This is a Lab View 4-Run Time executable that generates Gaussian white noise, uniform white noise, 1/f noise, short noise, and 60Hz line noise. Temporal data, (...)
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Supported products & hardware

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High-Speed Operational Amplifier OPA130 — Single, 1-MHz, 20-pA bias current, 530-µA power, FET operational amplifier OPA131 — Single, 4-MHz, 50-pA bias current, 750-µA power, FET operational amplifier OPA140 — Single-channel, 11-MHz, low-noise 36-V JFET precision operational amplifier with rail-to-rail output OPA140A-DIE — 11-MHz, low-noise 36-V JFET precision operational amplifier with rail-to-rail output OPA145 — Single, 5.5-MHz, high slew rate, low-noise, low-power, RRO precision JFET operational amplifier OPA177 — Precision Operational Amplifier OPA180 — 0.1-μV/°C Drift, Low-Noise, Rail-to-Rail Output, 36-V, Zero-Drift Operational Amplifier OPA180-Q1 — Automotive-Qualified 0.1μV/°C Drift, Low-Noise, RRO, 36V, Zero-Drift Op Amp OPA187 — Zero drift (10µV, 0.001µV/°C), MUX-friendly, low-noise, RRO, CMOS precision op amp OPA188 — Precision, Low-Noise, Rail-to-Rail Output, 36V Zero-Drift Operational Amplifier OPA188-Q1 — Automotive-Qualified Precision, Low-Noise, RRO, 36V, Zero-Drift Operational Amplifier OPA189 — Single, 14-MHz, mux-friendly, low-noise, zero-drift, RRO, CMOS precision operational amplifier OPA191 — Low-Power, Precision, 36-V, e-trim CMOS Amplifier OPA192 — High-Voltage, Rail-to-Rail Input/Output, 5µV, 0.2µV/˚C, Precision Operational Amplifier OPA192-Q1 — Automotive High-Voltage Rail-to-Rail Input/Output Precision Op Amp E-Trim™ Series OPA196 — Single, 36-V, low power, all-purpose amplifier with mux-friendly input OPA197 — Single, 36-V, precision, rail-to-rail input output, low offset voltage op amp OPA197-Q1 — Single, automotive 36-V, precision, rail-to-rail input output, low offset voltage op amp OPA202 — Low-noise (0.2 µVPP, 9 nV/√Hz) heavy-capacitive-drive (25 nF) super-beta precision op amp OPA206 — Low-power (240 µA) low-noise (8 nV/√Hz) precision e-trim™ op amp with super-beta inputs and OVP OPA207 — Low power (350µA), low noise (7.5nV/√Hz), high precision (100µV, 0.2µV/⁰C), bipolar RRO op amp OPA209 — Single, 2.2-nV/rtHz, 18-MHz, precision, RRO, 36-V operational amplifier OPA210 — 2.2-nV/√Hz, low-power, 36-V operational amplifier OPA211 — 1.1nV/rtHz Noise, Low-Power, Precision Operational Amplifier OPA211-EP — Enhanced Product 1.1nV/rtHz Noise, Low Power, Precision Operational Amplifier OPA211-HT — High Temperature 1.1nV/rtHz Noise, Low Power, Precision Operational Amplifier OPA2130 — Dual, 1-MHz, 20-pA bias current, 530-µA power, FET operational amplifier OPA2131 — Dual, 4-MHz, 50-pA bias current, 750-µA power, FET operational amplifier OPA2140 — Dual-channel, 11-MHz, low-noise 36-V JFET precision operational amplifier with rail-to-rail output OPA2145 — Dual, 5.5-MHz, high slew rate, low-noise, low-power, RRO precision JFET operational amplifier OPA2156 — Low noise (3-nV/√Hz @10kHz), high speed (25-MHz, 40-V/µs), CMOS precision RRIO dual op amp OPA2180 — 0.1 uV/°C DRIFT, Low Noise, Rail-to-Rail Output, 36V Zero-Drift Op Amp OPA2180-Q1 — Automotive-Qualified 0.1 uV/°C Drift, Low Noise, RRO, 36V, Zero-Drift Op Amp OPA2182 — Industry’s lowest offset drift (0.012 uV/˚C, max), 5.7 nV/rtHz, MUX-friendly 36V op amp OPA2187 — Zero-drift (10µV, 0.001µV/C˚), MUX-friendly, low-noise, RRO, CMOS precision op amp (dual) OPA2188 — 0.03µV/°C, 6µV Vos, Low Noise, Rail-to-Rail Output, 36V Zero-Drift Operational Amplifier OPA2188-Q1 — Automotive-Qualified 0.03µV/°C Drift, 6µV Vos, Low-Noise, RRO, 36V, Zero-Drift Op Amp OPA2189 — Dual, 14-MHz, MUX-friendly, low-noise, zero-drift, RRO, CMOS precision operational amplifier OPA2191 — Low-power, 36-V, CMOS precision e-trim™ operational amplifier OPA2192 — 36-V, Precision, RRIO, Low Offset Voltage, Low Input Bias Current Op Amp With e-trim OPA2192-Q1 — Automotive 36-V, Precision, RRIO, Low Offset Voltage, Low Input Bias Current Op Amp With e-trim OPA2196 — Dual, 36-V, low power, all-purpose amplifier with mux-friendly input OPA2197 — Dual 36-V, precision, rail-to-rail input output, low offset voltage op amp OPA2197-Q1 — Dual automotive 36-V, precision, rail-to-rail input output, low offset voltage op amp OPA2202 — Low-noise (0.2 µVPP, 9 nV/√Hz), heavy-capacitive-drive (25 nF) dual super-beta precision op amp OPA2205 — Dual, rail-to-rail bipolar precision e-trim™ op amp with low input bias current and low noise OPA2206 — OVP ±40-V, low-power, low-noise, precision amplifier with e-trim™ and super beta input transistors OPA2209 — Dual, 2.2-nV/rtHz, 18-MHz, precision, RRO, 36-V operational amplifier OPA2210 — Ultra-low noise (2.2-nV/√Hz), super beta (0.3nA), high precision (5µV, 0.1µV/°C), 36-V, dual op amp OPA2211-EP — 1.1 nV/√Hz Noise, Low Power, Precision Operational Amplifier OPA2211-HT — 1.1nV/rtHz noise, low power, precision op amp OPA2211A — 1.1nV/rtHz Noise, Low Power, Precision Operational Amplifier OPA2227 — Dual high precision, low noise operational amplifiers OPA2227-EP — Enhanced Product High Precision, Low Noise Operational Amplifier OPA2228 — Dual, wide bandwidth, high precision, low noise operational amplifiers OPA2237 — Dual Single-Supply Operational Amplifiers MicroAmplifier™ Series OPA2241 — Dual, 5V single-supply, micro power operational amplifiers OPA2251 — Dual, 15V single-supply, micro power operational amplifiers OPA227 — High Precision, Low Noise Operational Amplifiers OPA2277 — 10µV, 0.1µV/˚C, High-Precision, Low-Power Operational Amplifier OPA2277-DIE — High Precision Operational Amplifier OPA2277-EP — Enhanced Product High Precision Operational Amplifier OPA228 — 33-MHz, 3-nV/√Hz noise, high precision operational amplifiers OPA2317 — Dual, Low Offset, Rail-to-Rail I/O Operational Amplifier OPA2317-Q1 — OPAx317-Q1 Low-Offset, Rail-to-Rail I/O Operational Amplifier OPA2320 — Dual, precision, zero-crossover, 20-MHz, 0.9-pA Ib, RRIO, CMOS operational amplifier OPA2320-Q1 — Automotive, dual, precision, zero-crossover, 20-MHz, 0.9-pA Ib, RRIO, CMOS op amp OPA2325 — Dual precision, wide bandwidth, low noise, low power ADC driving op amp with RRIO and zero-crossover OPA2330 — Dual, 1.8-V, 35-µA, micropower, precision, zero drift CMOS op amp OPA2333 — 1.8V, 17µA, 2 channels, microPower, Precision, Zero Drift CMOS Op Amp OPA2333-HT — High Temperature 1.8-V Micropower CMOS Operational Amplifier Zero-Drift Series OPA2333-Q1 — Automotive catalog 1.8V, 17uA, 2uV, microPOWER CMOS Zero-Drift Series Operational Amplifier OPA2333A-EP — Enhanced Product 1.8 V, Micropower Cmos Operational Amplifiers Zero-Drift Series OPA2333P — Industry's smallest, low-power, high-precision dual Op Amp with >300kHz GBW OPA2334 — Dual 0.05uV/C max, single-supply CMOS operational amplifier with shutdown OPA2335 — Dual 0.05uV/C max, single-supply CMOS operational amplifier OPA2335M — 0.05uV/C max, Single-Supply CMOS Operational Amplifier OPA2336 — Single-Supply, MicroPower CMOS Operational Amplifiers MicroAmplifier Series OPA2340 — Dual single-supply, rail-to-rail, low power operational amplifier OPA2340-DIE — Single-Supply, Rail-to-Rail Operational Amplifier MicroAmplifier™ OPA2350 — Dual single-supply, rail-to-rail, high speed, low-noise operational amplifier OPA2369 — Dual, 1.8-V, 700-nA, zero-crossover rail-to-rail I/O operational amplifier OPA237 — Single-Supply Operational Amplifiers MicroAmplifier™ Series OPA2376 — Dual, precision, low-noise, low quiescent current operational amplifier OPA2376-Q1 — Low Noise, Low Quiescent Current, Precision Operational Amplifier e-trim/trade OPA2377 — Low-Cost, Low Noise, 5MHz CMOS Operational Amplifier OPA2377-Q1 — Automotive-Qualified, Rail-to-Rail In/Out, Low Noise, 5MHz CMOS Operational Amplifier OPA2378 — Dual, low-noise, 900-kHz, RRIO, precision operational amplifier, zero-drift series OPA2381 — Precision, Low Power, Transimpedance Amplifier OPA2387 — Ultra-high-precision zero-drift low-input-bias-current operational amplifier OPA2388 — Dual, 10-MHz, CMOS, zero-drift, zero-crossover, true RRIO precision operational amplifier OPA2388-Q1 — Dual, automotive qualified, wide-bandwidth, zero-drift, zero-crossover, precision amplifier OPA241 — Single, 5V single-supply, micro power operational amplifiers OPA251 — Single, 15V single-supply, micro power operational amplifiers OPA27 — Ultra-low-noise (4.5-nV/√Hz), 100-µV offset, unity gain stable precision operational amplifier OPA2727 — e-trim™20MHz, High Precision CMOS Operational Amplifier OPA2734 — Dual 0.05uV/degC (max) single-supply CMOS operational amplifier, zero-drift series with shutdown OPA2735 — Dual 0.05uV/degC (max) single-supply CMOS operational amplifier, zero-drift series OPA277 — Dual, 36-V, 10µV offset, 0.1µV/˚C drift, bipolar, operational amplifier OPA2828 — Dual, high-speed (45 MHz and 150 V/μs), 36-V, low-noise (4 nV/√Hz) RRO JFET operational amplifier OPA317 — Low Offset, Rail-to-Rail I/O Operational Amplifier OPA317-Q1 — Automotive-Qualified Operational Amplifier with Low-Offset, RRIO, and Low Current Consumption OPA320 — Precision, zero-crossover, 20-MHz, 0.9-pA Ib, RRIO, CMOS operational amplifier OPA320-Q1 — Automotive qualified, precision, zero-crossover, 20-MHz, 0.9-pA Ib, RRIO, CMOS operational amplifier OPA325 — Low noise (10nV/rtHz), wide bandwidth (10MHz), low power (0.65mA), zero crossover op amp OPA328 — Precision, zero-crossover, 50-μV offset voltage, 40-MHz wide-bandwidth RRIO CMOS op amp OPA330 — Single, 1.8-V, 35-µA, micropower, precision, zero drift CMOS op amp OPA333 — Micropower, 1.8-V, 17-µA zero-drift CMOS precision operational amplifier OPA333-Q1 — Automotive, micropower, 1.8-V, 17-µA zero-drift CMOS precision operational amplifier OPA333A-EP — Enhanced-product, micropower, 1.8-V, 17-µA zero-drift CMOS precision operational amplifier OPA334 — Single 0.05uV/C max, single-supply CMOS operational amplifier with shutdown OPA335 — Single 0.05uV/C max, single-supply CMOS operational amplifier OPA336 — Single-Supply, MicroPower CMOS Operational Amplifiers MicroAmplifier™ Series OPA336-EP — Enhanced Product Single-Supply, Micropower Cmos Operational Amplifiers Microamplifier(Tm) OPA340 — Single, single-supply, rail-to-rail, low power operational amplifier OPA340-EP — Enhanced Product Single-Supply, Rail-to-Rail Operational Amplifiers MicroAmplifier™ Series OPA350 — Single, single-supply, rail-to-rail, high speed, low noise operational amplifier OPA369 — Single, 1.8-V, 700-nA, zero-crossover rail-to-rail I/O operational amplifier OPA37 — Ultra-low-noise (4.5-nV/√Hz), 100-µV offset, decompensated precision operational amplifier OPA376 — Precision (0.025mV), low noise (7.5nV/rtHz), low quiescent current (760uA) op amp OPA376-Q1 — Automotive Precision, Low Noise, Low Iq Operational Amplifier OPA377 — Low-cost, low-noise, 5.5-MHz CMOS operational amplifier OPA377-Q1 — Automotive Qualified, Low Noise, Low Voltage, Precision Operational Amplifier OPA378 — Low-noise, 900-kHz, RRIO, precision operational amplifier, zero-drift series OPA381 — Precision, Low Power, High-Speed Transimpedance Amplifier OPA387 — Ultra-high precision (2 µV), zero-drift (0.003 µV/C), low-input-bias-current op amp (single) OPA388 — Single, 10-MHz, CMOS, zero-drift, zero-crossover, true RRIO precision operational amplifier OPA388-Q1 — Automotive qualified, wide bandwidth, zero drift, zero cross over, precision amplifier OPA391 — Micropower, single, high-precision low-bias-current RRIO op amp with high speed-to-power ratio OPA392 — Single, low-offset (10 μV), low-noise (6 nV/rtHz) femtoamp-bias-current e-trim™ op amp OPA396 — Micro-power, high precision, high speed-to-power ratio, cost optimized RRIO single op amp OPA397 — Single, low-offset (60 µV), low-noise, low-bias-current RRIO e-trim™ operational amplifier OPA3S328 — High-speed (40 MHz) high-precision (60 µV) low-noise op amp with integrated gain switches OPA404 — Quad High Speed Precision Difet® Operational Amplifier OPA4140 — Quad-channel, 11-MHz, low-noise 36-V JFET precision operational amplifier with rail-to-rail output OPA4180 — 0.1 uV/C Drift, Quad, Low Noise, Rail-to-Rail, 36V Zero Drift Op Amp OPA4187 — Zero-drift (10µV, 0.001µV/C˚), MUX-friendly, low-noise, RRO, CMOS quad precision op amp (quad) OPA4188 — 0.03µV/C, Low Noise, Rail-to-Rail Output, 36V Zero-Drift Operational Amplifier OPA4189 — Quad, 14-MHz, MUX-friendly, zero-drift, rail-to-rail-output, precision operational amplifier OPA4191 — Quad, low-power, 36-V, precision, e-trim amplifier with RRIO OPA4192 — Low-Noise, Low Quiescent Current, 36V RRI/O Precision Op Amps, E-Trim™ Series OPA4196 — Quad, 36-V, low power, all-purpose amplifier with mux-friendly input OPA4197 — Quad, 36-V, precision, rail-to-rail input output, low offset voltage op amp OPA4197-Q1 — Automotive, quad channel, high precision, 36-V, 10-MHz, rail-to-rail input output op amp OPA4202 — Low-noise (0.2 µVPP, 9 nV/√Hz), heavy-capacitive-drive (25 nF) quad super-beta precision op amp OPA4205 — Quad, rail-to-rail bipolar precision e-trim™ op amp with low input bias current and low noise OPA4209 — Quad, 2.2-nV/rtHz, 18-MHz, precision, RRO, 36-V operational amplifier OPA4227 — Quad high precision, low noise operational amplifiers OPA4228 — Quad high precision, wide bandwidth, low noise operational amplifiers OPA4241 — Quad, 5V single-supply, micro power operational amplifiers OPA4251 — Quad, 15V single-supply, micro power operational amplifiers OPA4277 — Quad, low-offset (10 µV), precision op amp OPA4277-EP — Enhanced Products High Precision Operational Amplifiers OPA4277-SP — High-precision operational amplifier OPA4317 — Quad, Low Offset, Rail-to-Rail I/O Operational Amplifier OPA4325 — Low noise (10nV/rtHz), wide bandwidth (10MHz), low power (0.65mA), quad zero crossover op amp OPA4330 — Quad, 1.8-V, 35-µA, micropower, precision, zero drift CMOS op amp OPA4336 — Quad Single-Supply, MicroPower CMOS Operational Amplifiers MicroAmplifier™ Series OPA4340 — Quad, single-supply, rail-to-rail, low power operational amplifier OPA4350 — Quad, single-supply, rail-to-rail, high speed, low noise operational amplifier OPA4350-DIE — High-Speed, Single-Supply, Rail-to-Rail Operational Amplifiers MicroAmplifier™ Series OPA4376 — Quad precision, low-noise, low quiescent current operational amplifier OPA4376-Q1 — Automotive-Qualified Precision Op Amp With E-Trim, Low Quiescent Current and Low Noise OPA4377 — Quad low-cost, low-noise, 5.5-MHz CMOS operational amplifier OPA4377-Q1 — Automotive-Qualified CMOS Operational Amplifier With Low Noise and 5.5MHz GBW OPA4387 — Ultra-high precision (2 μV), zero-drift (0.003 μV/C), low-input-bias-current op amp (quad) OPA4388 — Quad, 10-MHz, CMOS, zero-drift, zero-crossover, true RRIO precision operational amplifier OPA4727 — e-trim™ 20MHz, High Precision CMOS Operational Amplifier OPA4H014-SEP — Radiation-tolerant, 11-MHz, low-noise, precision rail-to-rail output JFET amplifier OPA593 — 85-V, 100-µV wide-bandwidth (10 MHz) high-output-current (250 mA) precision operational amplifier OPA627 — 55V/µS, High-Speed, 0.8µV/˚C Drift Max, Precision Operational Amplifier OPA627-DIE — OPA627-DIE Precision High-Speed Difet Operational Amplifier OPA637 — Precision High-Speed Difet® Operational Amplifiers OPA727 — Single high precision, low noise operational amplifiers OPA728 — 20-MHz, 2.5-fA/√Hz noise, high precision operational amplifiers OPA734 — Single 0.05-uV/degC (max) single-supply CMOS op amp, zero-drift series with shutdown OPA735 — Single 0.05uV/degC (max) single-supply CMOS operational amplifier, zero-drift series OPA827 — Low-noise, high-precision, JFET-input operational amplifier OPA828 — High-speed (45 MHz and 150 V/μs), 36-V, low-noise (4 nV/√Hz) RRO JFET operational amplifier OPA928 — High-voltage femtoampere-input-bias precision e-trim™ operational amplifier with RRIO SM72501 — Precision, CMOS Input, RRIO, Wide Supply Range Amplifier SM73307 — Dual, precision, 17-MHz, low-noise, CMOS input amplifier SM73308 — Low Offset, Low Noise, RRO Operational Amplifiers THP210 — High precision (40-μV, 0.1μV/C), high-voltage (36-V), low-noise (3.7-nV/√Hz), fully-differential amp TLC1078 — Dual Micropower Precision Low-Voltage Operational Amplifier TLC1079 — Quad Micropower Precision Low-Voltage Operational Amplifier TLC2201 — Low Noise Precision Rail-To-Rail Output Operational Amplifier TLC2201-SP — Space Low Noise Precision Advanced LinCMOS™ Single Operational Amplifier TLC2201A — Advanced LinCMOS™ Low-Noise Precision Operational Amplifier TLC2201AM — Low Noise Precision Advanced LinCMOS™ Single Operational Amplifier TLC2201AM-MIL — Low Noise Precision Advanced LinCMOS™ Single Operational Amplifier TLC2201M — Low Noise Precision Advanced LinCMOS™ Single Operational Amplifier TLC2202 — Dual Low-Noise Precision Rail-To-Rail Operational Amplifier TLC2202A — Advanced LinCMOS™ Low-Noise Precision Dual Operational Amplifier TLC2202AM — Low Noise Precision Advanced LinCMOS™ Dual Operational Amplifier TLC2202M — Low Noise Precision Advanced LinCMOS™ Dual Operational Amplifier TLC2252A — Rail-To-Rail Dual Operational Amplifier TLC2252A-EP — Enhanced Product Advanced Lincmos Rail-To-Rail Very Low Power Operational Amplifiers TLC2252A-Q1 — Automotive Catalog Advanced LinCMOS Rail-to-Rail Very Low-Power Operational Amplifier TLC2252AM — Rail-To-Rail uPower Precision Advanced LinCMOS™ Dual Operational Amplifier TLC2254A — Rail-To-Rail Quad Operational Amplifier TLC2254A-EP — Enhanced Product Advanced Lincmos Rail-To-Rail Very Low-Power Operational Amplifiers TLC2254A-Q1 — Automotive advanced LinCMOS rail-to-rail very low-power precision operational amplifier TLC2254AM — Rail-To-Rail uPower Precision Advanced LinCMOS™ Quad Operational Amplifier TLC2264A-Q1 — Automotive Catalog Rail-to-Rail Very Low Power Operational Amplifier TLC2272A — Dual, low-noise, 2.18-MHz rail-to-rail operational amplifier TLC2272A-EP — Enhanced Product Advanced Lincmos(Tm) Rail-To-Rail Dual Operational Amplifier TLC2272A-Q1 — Automotive Catalog Advanced LinCMOS™ Rail-to-Rail Operational Amplifiers TLC2272AM — Advanced LinCMOS™ rail-to-rail dual precision operational amplifier with wide temperature r TLC2272AM-MIL — Rail-To-Rail Low Noise Advanced LinCMOS™ Dual Operational Amplifier TLC2274A — Advanced LinCMOS™ rail-to-rail quad precision operational amplifier TLC2274A-EP — Enhanced Product Advanced Lincmos(Tm) Rail-To-Rail Operational Amplifiers TLC2274A-Q1 — Automotive advanced LinCMOS™ rail-to-rail quad precision operational amplifier TLC2652 — High precision, 1-µV offset, chopper-stabilized operational amplifier TLC2652A — Advanced LinCMOS™ Precision Chopper-Stabilized Operational Amplifier TLC2652AM — Precision Chopper-Stabilized Advanced LinCMOS™ Operational Amplifier TLC2652M-MIL — Precision Chopper-Stabilized Advanced LinCMOS™ Operational Amplifier TLC2654 — Low-Noise Chopper-Stabilized Operational Amplifier TLC2654A — Advanced LinCMOS™ Low-Noise Chopper-Stabilized Operational Amplifier TLC2654AM — Low Noise Chopper-Stabilized Advanced LinCMOS™ Operational Amplifier TLC277 — Dual Precision Single Supply Operational Amplifier TLC279 — Quad Precision Single Supply Operational Amplifier TLC27L7 — Dual Precision Single Supply uPower Operational Amplifier TLC27L9 — Quad Precision Single Supply Micropower Operational Amplifier TLC27M7 — Dual, precision single supply low-power operational amplifier TLC27M9 — Quad, precision single supply low-power operational amplifier TLC4501 — Advanced LinEPIC Self-Calibrating (Self-Cal) Precision Single Operational Amplifier TLC4501A — Advanced LinEPIC Self-Calibrating (Self-Cal) Precision Operational Amplifier TLC4502 — Advanced LinEPIC Self-Calibrating Precision Dual Operational Amplifier TLC4502A — Advanced, self-calibrating, precision, dual operational amplifier TLC4502AM — Advanced, self-calibrating, precision, dual operational amplifier TLC4502M — Advanced LinEPIC Self-Calibrating Precision Dual Operational Amplifier TLE2021 — Precision Low-Power Single Supply Operational Amplifier TLE2021-EP — Enhanced Product Precision Low-Power Single Supply Operational Amplifier TLE2021-Q1 — Automotive excalibur high-speed low-power single operational amplifier TLE2021A — Excalibur high-speed low-power single precision operational amplifier TLE2021A-EP — Enhanced Product Excalibur High-Speed Low-Power Precision Operational Amplifiers TLE2021A-Q1 — Automotive excalibur high-speed low-power single precision operational amplifier TLE2021AM — High-Speed, Low-Power, Precision Single Operational Amplifier TLE2021B — Excalibur High-Speed Low-Power Precision Operational Amplifier TLE2021M — High-Speed, Low-Power, Precision Single Operational Amplifier TLE2021M-MIL — High-Speed, Low-Power, Precision Single Operational Amplifier TLE2022 — Dual Precision Low-Power Single Supply Operational Amplifier TLE2022-EP — Enhanced Product Excalibur High-Speed Low-Power Precision Operational Amplifiers TLE2022-Q1 — Automotive excalibur high-speed low-power single dual operational amplifier TLE2022A — Excalibur High-Speed Low-Power Precision Dual Operational Amplifier TLE2022A-EP — Enhanced Product Excalibur High-Speed Low-Power Precision Operational Amplifiers TLE2022A-Q1 — Automotive excalibur high-speed low-power dual precision operational amplifier TLE2022AM — High-Speed, Low-Power, Precision Dual Operational Amplifier TLE2022AM-MIL — High-Speed, Low-Power, Precision Dual Operational Amplifier TLE2022BM — High-Speed, Low-Power, Precision Dual Operational Amplifier TLE2022M — Excalibur high-speed low-power precision dual operational amplifier with wide temperature ranges TLE2022M-MIL — High-Speed, Low-Power, Precision Dual Operational Amplifier TLE2024A — Excalibur high-speed low-power quad precision operational amplifier TLE2024A-EP — Enhanced Product Excalibur High-Speed Low-Power Precision Op Amps TLE2024AM — High-Speed, Low-Power, Precision Quad Operational Amplifier TLE2024B — Excalibur High-Speed Low-Power Precision Quad Operational Amplifier TLE2027 — Low-Noise Precision Operational Amplifier TLE2027AM — Low-noise, high-speed, precision (25-µV offset) single operational amplifier TLE2027AM-MIL — Low-Noise, High-Speed Precision Single Operational Amplifier TLE2027M — Low-noise, high-speed, precision (100-µV offset) single operational amplifier TLE2027M-MIL — Low-Noise, High-Speed Precision Single Operational Amplifier TLE2037 — Low-Noise High-Speed Precision Decomp. Operational Amplifier TLE2037A — Excalibur Low-Noise High-Speed Precision Decompensated Operational-Amplifier TLE2037A-Q1 — Automotive Excalibur Low-Noise High-Speed Precision Operational Amplifiers TLE2141 — Low Noise High-Speed Precision Single Supply Operational Amplifier TLE2141-EP — Enhanced Product Excaliber Low-Noise High-Speed Precision Operational Amplifier TLE2141-Q1 — Automotive Low-Noise High-Speed Precision Op Amps TLE2141A — Excalibur Low-Noise High-Speed Precision Operational Amplifier TLE2141AM — High Speed High Drive Precision Operational Amplifier TLE2141M — High Speed High Drive Precision Operational Amplifier TLE2141M-D — High speed high drive single operational amplifier TLV07 — Precision, 36-V, low noise, rail-to-rail output, operational amplifier TLV197-Q1 — Automotive, single channel, high-voltage, precision, RRIO op amp TLV2186 — Low power,  rail-to-rail input and output, 24-V, zero-drift operational amplifier TLV2197-Q1 — Automotive, dual channel, high-voltage, precision, RRIO op amp TLV2252 — Dual Rail-To-Rail Low-Voltage Low Power Operational Amplifier TLV2252-Q1 — Automotive, advanced LinCMOS™ rail-to-rail very low-power dual operational amplifier TLV2252A — Advanced LinCMOS™ rail-to-rail very low-power dual precision operational amplifier TLV2252A-EP — Enhanced Product Advanced Lincmos(Tm) Rail-To-Rail Very Low-Power Operational Amplifiers TLV2252A-Q1 — Automotive, advanced LinCMOS™ rail-to-rail very low-power dual precision op amp TLV2252AM — Low Voltage Rail-To-Rail uPower Precision Advanced LinCMOS™ Dual Operational Amplifier TLV2252M — Low Voltage Rail-To-Rail Micropower Advanced LinCMOS™ Dual Operational Amplifier TLV2254 — Advanced LinCMOS™ rail-to-rail very low-power quad operational amplifier TLV2254A — Quad Low-Voltage Rail-To-Rail Operational Amplifier TLV2254A-EP — Enhanced Product Advanced Lincmos(Tm) Rail-To-Rail Very Low-Power Operational Amplifiers TLV2262 — Dual Rail-To-Rail Low-Voltage Low-Power Operational Amplifier TLV2262A — Dual advanced linCMOS™, 0.2-mA, rail-to-rail operational amplifier TLV2262A-Q1 — Dual, automotive precision advanced linCMOS rail-to-rail operational amplifier TLV2262AM — Low Voltage Rail-To-Rail Low Power Precision Advanced LinCMOS™ Dual Operational Amplifier TLV2262M — Low Voltage Rail-To-Rail Low Power Advanced LinCMOS™ Dual Operational Amplifier TLV2264 — Quad Rail-To-Rail Low-Voltage Low-Power Operational Amplifier TLV2264A — Quad, advanced linCMOS™, 0.2-mA, rail-to-rail operational amplifier TLV2264A-Q1 — Quad, automotive precision advanced linCMOS rail-to-rail operational amplifier TLV2264AM — Low Voltage Rail-To-Rail Low Power Precision Advanced LinCMOS™ Quad Operational Amplifier TLV2333 — Dual, 350-kHz, low-noise, RRIO, CMOS operational amplifier for cost-sensitive systems TLV2369 — Dual, 800-nA 1.8-V RRIO operational amplifier with zero-crossover distortion TLV2376 — Dual 5.5-MHz, 100-µV offset, 8-nV/√Hz noise, 815-µA power, precision operational amplifiers TLV2422A — Rail-to-Rail Output Wide-Input-Voltage Micropower Dual Op Amps TLV2442 — Advanced LinCMOS™ rail-to-rail output wide-input-voltage dual operational amplifier TLV2442A — Advanced LinCMOS™ rail-to-rail output wide-input-voltage dual precision op amp TLV2442A-Q1 — Automotive, advanced LinCMOS™ rail-to-rail output wide-input-voltage dual precision op amp TLV2442AM — Advanced LinCMOS™ Rail-to-Rail Output Wide-Input-Voltage Dual Operational Amplifier TLV2442M — Advanced LinCMOS™ Rail-to-Rail Output Wide-Input-Voltage Dual Operational Amplifier TLV2444 — Advanced LinCMOS™ rail-to-rail output wide-input-voltage quad operational amplifier TLV2444A — Advanced LinCMOS™ rail-to-rail output wide-input-voltage quad precision op amp TLV333 — Single, 350-kHz, low-noise, RRIO, CMOS operational amplifier for cost-sensitive systems TLV369 — Single, 800-nA, 1.8-V, RRIO op amp with zero-crossover distortion for cost-sensitive application TLV376 — 5.5-MHz, 100-µV offset, 8-nV/√Hz noise, 815-µA power, precision operational amplifier TLV4197-Q1 — Automotive, quad-channel, high-voltage, low-offset, rail-to-rail input output op amp TLV4333 — Quad, 350-kHz, low-noise, RRIO, CMOS operational amplifier for cost-sensitive systems TLV4376 — Quad 5.5-MHz, 100-µV offset, 8-nV/√Hz noise, 815-µA power, precision operational amplifiers TLV6003 — Single ultra-low power (980nA), 16-V precision rail-to-rail input and output operational amplifier TLV8811 — Single 425-nA precision nanopower operational amplifier for cost-optimized systems TLV8812 — Dual 425-nA precision nanopower operational amplifier for cost-optimized systems
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CIRCUIT060001 — Single-supply, low-side, unidirectional current-sensing circuit

This single–supply, low–side, current sensing solution accurately detects load current up to 1A and converts it to a voltage between 50mV and 4.9V. The input current range and output voltage range can be scaled as necessary and larger supplies can be used to accommodate larger swings.
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CIRCUIT060002 — Temperature sensing with NTC thermistor circuit

This temperature sensing circuit uses a resistor in series with a negative–temperature–coefficient (NTC) thermistor to form a voltage divider, which has the effect of producing an output voltage that is linear over temperature. The circuit uses an op amp in a non–inverting (...)
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CIRCUIT060003 — Temperature sensing with PTC thermistor circuit

This temperature sensing circuit uses a resistor in series with a positive–temperature–coefficient (PTC) thermistor to form a voltage–divider, which has the effect of producing an output voltage that is linear over temperature. The circuit uses an op amp in a non–inverting (...)
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CIRCUIT060004 — Low-noise and long-range PIR sensor conditioner circuit

This two stage amplifier design amplifies and filters the signal from a passive infrared (PIR) sensor. The circuit includes multiple low–pass and high–pass filters to reduce noise at the output of the circuit to be able to detect motion at long distances and reduce false triggers. This (...)
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CIRCUIT060005 — High-side current sensing with discrete difference amplifier circuit

This single–supply, high–side, low–cost current sensing solution detects load current between 50mA and 1A and converters it to an output voltage from 0.25V to 5V. High–side sensing allows for the system to identify ground shorts and does not create a ground disturbance on (...)
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CIRCUIT060006 — Bridge amplifier circuit

A strain gauge is a sensor whose resistance varies with applied force. To measure the variation in resistance, the strain gauge is placed in a bridge configuration. This design uses a 2 op amp instrumentation circuit to amplify a differential signal created by the change in resistance of a strain (...)
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CIRCUIT060007 — Low-side bidirectional current-sensing circuit

This single-supply, low-side, bidirectional, current-sensing solution can accurately detect load currents from –1 A to 1 A. The linear range of the output is from 110 mV to 3.19 V. Low-side current sensing keeps the common-mode voltage near ground, and is thus most useful in applications with (...)
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CIRCUIT060008 — Full-wave rectifier circuit

This absolute value circuit can turn alternating current (AC) signals to single polarity signals. This circuit functions with limited distortion for ±10-V input signals at frequencies up to 50kHz and for signals as small as ±25mV at frequencies up to 1kHz.
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CIRCUIT060009 — Half-wave rectifier circuit

The precision half-wave rectifier inverts and transfers only the negative-half input of a time varying input signal (preferably sinusoidal) to its output. By appropriately selecting the feedback resistor values, different gains can be achieved. Precision half-wave rectifiers are commonly used with (...)
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CIRCUIT060010 — PWM generator circuit

This circuit utilizes a triangle wave generator and comparator to generate a 500 kHz pulse-width modulated (PWM) waveform with a duty cycle that is inversely proportional to the input voltage. An op amp and comparator generate a triangle waveform which is applied to the inverting input of a second (...)
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CIRCUIT060011 — Single-supply, second-order, multiple feedback high-pass filter circuit

The multiple-feedback (MFB) high-pass (HP) filter is a 2nd-order active filter. Vref provides a DC offset to accommodate for single-supply applications. This HP filter inverts the signal (Gain = –1 V/V) for frequencies in the pass band. An MFB filter is preferable when the gain is high or (...)
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CIRCUIT060012 — Single-supply, 2nd-order, multiple feedback low-pass filter circuit

The multiple-feedback (MFB) low-pass filter (LP filter) is a second-order active filter. Vref provides a DC offset to accommodate for single-supply applications. This LP filter inverts the signal (Gain = –1 V/V) for frequencies in the pass band. An MFB filter is preferable when the gain is (...)
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CIRCUIT060014 — Voltage-to-current (V-I) converter circuit with MOSFET

This single-supply, low-side, V-I converter delivers a well-regulated current to a load which can be connected to a voltage greater than the op amp supply voltage. The circuit accepts an input voltage between 0 V and 2 V and converts it to a current between 0 mA and 100 mA. The current is (...)
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CIRCUIT060016 — Non-inverting microphone pre-amplifier circuit

This circuit uses a non–inverting amplifier circuit configuration to amplify the microphone output signal. This circuit has very good magnitude flatness and exhibits minor frequency response deviations over the audio frequency range. The circuit is designed to be operated from a single 5-V (...)
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CIRCUIT060017 — Dual-supply, discrete, programmable gain amplifier circuit

This circuit provides programmable, non-inverting gains ranging from 6 dB (2 V/V) to 60 dB (1000 V/V) using a variable input resistance. The design maintains the same cutoff frequency over the gain range.
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CIRCUIT060018 — Photodiode amplifier circuit

This circuit consists of an op amp configured as a transimpedance amplifier for amplifying the light dependent current of a photodiode.
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CIRCUIT060019 — Inverting op amp with non-inverting positive reference voltage circuit

This design uses an inverting amplifier with a non-inverting positive reference voltage to translate an input signal of –1 V to 2 V to an output voltage of 0.05 V to 4.95 V. This circuit can be used to translate a sensor output voltage with a positive slope and negative offset to a usable (...)
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CIRCUIT060020 — Inverting amplifier circuit

This design inverts the input signal, Vi , and applies a signal gain of –2 V/V. The input signal typically comes from a low-impedance source because the input impedance of this circuit is determined by the input resistor, R1. The common-mode voltage of an inverting amplifier is equal to the (...)
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CIRCUIT060074 — High-side current sensing with comparator circuit

This high-side, current sensing solution uses one comparator with a rail-to-rail input common mode range to create an over-current alert (OC-Alert) signal at the comparator output (COMP OUT) if the load current rises above 1 A. The OC-Alert signal in this implementation is active low. So when the (...)
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CIRCUIT060075 — High-speed overcurrent detection circuit

This high-speed, low-side overcurrent detection solution is implemented with a single zero-drift fast-settling amplifier (OPA388) and one high-speed comparator (TLV3201). This circuit is designed for applications that monitor fast current signals and overcurrent events, such as current detection in (...)
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PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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TINA-TI — SPICE-based analog simulation program

TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
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