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LPV821

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650nA, Precision Zero-Drift Nanopower Amplifier

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Data sheet

LPV821

ACTIVE
Data sheet Order now

Product details

Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 3.6 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 1.7 Vos (offset voltage at 25°C) (max) (mV) 0.01 Offset drift (typ) (µV/°C) 0.02 GBW (typ) (MHz) 0.008 Features EMI Hardened, Zero Drift Slew rate (typ) (V/µs) 0.0033 Rail-to-rail In, Out Iq per channel (typ) (mA) 0.00065 Vn at 1 kHz (typ) (nV√Hz) 215 CMRR (typ) (dB) 125 Rating Catalog Operating temperature range (°C) -40 to 125 Iout (typ) (A) 0.021 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) 0 Input common mode headroom (to positive supply) (typ) (V) 0 Output swing headroom (to negative supply) (typ) (V) 0.012 Output swing headroom (to positive supply) (typ) (V) -0.012
Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 3.6 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 1.7 Vos (offset voltage at 25°C) (max) (mV) 0.01 Offset drift (typ) (µV/°C) 0.02 GBW (typ) (MHz) 0.008 Features EMI Hardened, Zero Drift Slew rate (typ) (V/µs) 0.0033 Rail-to-rail In, Out Iq per channel (typ) (mA) 0.00065 Vn at 1 kHz (typ) (nV√Hz) 215 CMRR (typ) (dB) 125 Rating Catalog Operating temperature range (°C) -40 to 125 Iout (typ) (A) 0.021 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) 0 Input common mode headroom (to positive supply) (typ) (V) 0 Output swing headroom (to negative supply) (typ) (V) 0.012 Output swing headroom (to positive supply) (typ) (V) -0.012
SOT-23 (DBV) 5 8.12 mm² 2.9 x 2.8
  • Quiescent Current: 650 nA
  • Low Offset Voltage: ±10 µV (Maximum)
  • Offset Voltage Drift: ±0.096 µV/°C (Maximum)
  • 0.1-Hz to 10-Hz Noise: 3.9 µVPP
  • Input Bias Current: ±7 pA
  • Gain Bandwidth: 8 kHz
  • Supply Voltage: 1.7 V to 3.6 V
  • Rail-to-Rail Input/Output
  • Industry Standard Package
    • Single in 5-pin SOT-23
  • EMI Hardened
  • Quiescent Current: 650 nA
  • Low Offset Voltage: ±10 µV (Maximum)
  • Offset Voltage Drift: ±0.096 µV/°C (Maximum)
  • 0.1-Hz to 10-Hz Noise: 3.9 µVPP
  • Input Bias Current: ±7 pA
  • Gain Bandwidth: 8 kHz
  • Supply Voltage: 1.7 V to 3.6 V
  • Rail-to-Rail Input/Output
  • Industry Standard Package
    • Single in 5-pin SOT-23
  • EMI Hardened

The LPV821 is a single-channel, nanopower, zero-drift operational amplifier for “Always ON” sensing applications in wireless and wired equipment where low input offset is required. With the combination of low initial offset, low offset drift, and 8 kHz of bandwidth from 650 nA of quiescent current, the LPV821 is the industry’s lowest power zero-drift amplifier that can be used for end equipment that monitor current consumption, temperature, gas, or strain gauges.

The LPV821 zero-drift operational amplifier uses a proprietary auto-calibration technique to simultaneously provide low offset voltage (10 µV, maximum) and minimal drift over time and temperature. In addition to having low offset and ultra-low quiescent current, the LPV821 amplifier has pico-amp bias currents which reduce errors commonly introduced in applications monitoring sensors with high output impedance and amplifier configurations with megaohm feedback resistors.

The LPV821 amplifier also features an input stage with rail-to-rail input common mode range and an output stage that swings within 12 mV of the rails, maintaining the widest dynamic range possible. The device is EMI hardened to reduce system sensitivity to unwanted RF signals from mobile phones, WiFi, radio transmitters, and tag readers.

The LPV821 zero-drift amplifier operates with a single supply voltage as low as 1.7V, ensuring continuous performance in low battery situations over the extended temperature range of -40ºC to 125ºC. The LPV821 (single) is available in industry standard 5-pin SOT-23.

 

The LPV821 is a single-channel, nanopower, zero-drift operational amplifier for “Always ON” sensing applications in wireless and wired equipment where low input offset is required. With the combination of low initial offset, low offset drift, and 8 kHz of bandwidth from 650 nA of quiescent current, the LPV821 is the industry’s lowest power zero-drift amplifier that can be used for end equipment that monitor current consumption, temperature, gas, or strain gauges.

The LPV821 zero-drift operational amplifier uses a proprietary auto-calibration technique to simultaneously provide low offset voltage (10 µV, maximum) and minimal drift over time and temperature. In addition to having low offset and ultra-low quiescent current, the LPV821 amplifier has pico-amp bias currents which reduce errors commonly introduced in applications monitoring sensors with high output impedance and amplifier configurations with megaohm feedback resistors.

The LPV821 amplifier also features an input stage with rail-to-rail input common mode range and an output stage that swings within 12 mV of the rails, maintaining the widest dynamic range possible. The device is EMI hardened to reduce system sensitivity to unwanted RF signals from mobile phones, WiFi, radio transmitters, and tag readers.

The LPV821 zero-drift amplifier operates with a single supply voltage as low as 1.7V, ensuring continuous performance in low battery situations over the extended temperature range of -40ºC to 125ºC. The LPV821 (single) is available in industry standard 5-pin SOT-23.

 
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Technical documentation

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Type Title Date
* Data sheet LPV821, 650nA, Precision, Nanopower, Zero-Drift Amplifier datasheet (Rev. A) PDF | HTML 15 Dec 2017
Circuit design Low-power, bidirectional current-sensing circuit (Rev. B) PDF | HTML 02 Oct 2024
Circuit design Single-supply, low-side, unidirectional current-sensing circuit (Rev. A) PDF | HTML 26 Sep 2024
Application brief Zero-Drift Amplifiers: Features and Benefits (Rev. C) 28 Jan 2021
Application note Nano-Power Transimpedance Amplifier for Current Output Sensors 07 Mar 2018
Application brief GPIO Pins Power Signal Chain in Personal Electronics Running on Li-Ion Batteries 12 Feb 2018
Technical article How to make precision measurements on a nanopower budget, part 2: current sensing PDF | HTML 08 Feb 2018
Application brief Simplifying Environmental Measurements in Power Conscious Factory and Building A (Rev. A) 09 Jan 2018
Application note Advantages of using Nanopower Zero Drift Amp for Mobile Phone Battery Voltage Mo (Rev. A) 21 Dec 2017
Technical article How to make precision measurements on a nanopower budget, part 1: DC gain in nanop PDF | HTML 06 Dec 2017
Application note Current Sensing in No-Neutral Light Switches (Rev. A) 16 Oct 2017

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(10MHz), low power (0.65mA), zero crossover op amp OPA328 — Precision, zero-crossover, 50μV offset voltage, 40MHz wide-bandwidth RRIO CMOS operational amplifier 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 (4.4 nV/rtHz @10kHz) femtoamp-bias-current e-trim™ op amp OPA396 — Single, micropower (24 μA), low-offset (100 μV), high speed-to-power ratio RRIO 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 power, 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 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 OPA4391 — Quad, micropower, high speed-to-power ratio, low-bias-current 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 max drift precision 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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Design tool

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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CIRCUIT060077 — Low-power, bidirectional current sensing circuit

This low-power, low-side, bidirectional current sensing solution uses two nano-power, zero-drift amplifiers (LPV821) and one micro-power comparator with an integrated, precision reference (TLV3012). This circuit is well-suited for battery powered devices where charging current and system current (...)
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Simulation tool

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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Simulation tool

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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Reference designs

TIDA-010019 — RTD replacement for cold junction compensation reference design in a temperature sensor

Temperature-sensing applications that use a thermocouple (TC) require an accurate local temperature sensor to achieve high accuracy. Solutions for design challenges such as cold-junction compensation (CJC) or including an ultra-low power TC analog front-end are highlighted and addressed in this (...)
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Schematic: PDF
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