LMP2232

ACTIVE

Dual, Micropower, 1.6V, Precision , Operational Amplifier with CMOS Input

Product details

Number of channels 2 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.5 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 1.6 Vos (offset voltage at 25°C) (max) (mV) 0.15 Offset drift (typ) (µV/°C) 0.3 Input bias current (max) (pA) 1 GBW (typ) (MHz) 0.13 Slew rate (typ) (V/µs) 0.048 Rail-to-rail In to V-, Out Iq per channel (typ) (mA) 0.0095 Vn at 1 kHz (typ) (nV√Hz) 60 CMRR (typ) (dB) 97 Rating Catalog Operating temperature range (°C) -40 to 125 Iout (typ) (A) 0.022 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) -0.2 Input common mode headroom (to positive supply) (typ) (V) -0.8 Output swing headroom (to negative supply) (typ) (V) 0.017 Output swing headroom (to positive supply) (typ) (V) -0.017 THD + N at 1 kHz (typ) (%) 0.002
Number of channels 2 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.5 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 1.6 Vos (offset voltage at 25°C) (max) (mV) 0.15 Offset drift (typ) (µV/°C) 0.3 Input bias current (max) (pA) 1 GBW (typ) (MHz) 0.13 Slew rate (typ) (V/µs) 0.048 Rail-to-rail In to V-, Out Iq per channel (typ) (mA) 0.0095 Vn at 1 kHz (typ) (nV√Hz) 60 CMRR (typ) (dB) 97 Rating Catalog Operating temperature range (°C) -40 to 125 Iout (typ) (A) 0.022 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) -0.2 Input common mode headroom (to positive supply) (typ) (V) -0.8 Output swing headroom (to negative supply) (typ) (V) 0.017 Output swing headroom (to positive supply) (typ) (V) -0.017 THD + N at 1 kHz (typ) (%) 0.002
SOIC (D) 8 29.4 mm² 4.9 x 6 VSSOP (DGK) 8 14.7 mm² 3 x 4.9
  • (For VS = 5V, Typical Unless Otherwise Noted)

  • Supply Current at 1.8V 16 µA
  • Operating Voltage Range 1.6V to 5.5V
  • Low TCVOS ±0.5 µV/°C (max)
  • VOS ±150 µV (max)
  • Input Bias Current 20 fA
  • PSRR 120 dB
  • CMRR 97 dB
  • Open Loop Gain 120 dB
  • Gain Bandwidth Product 130 kHz
  • Slew Rate 58 V/ms
  • Input Voltage Noise, f = 1 kHz 60 nV/√Hz
  • Temperature Range –40°C to 125°C

All trademarks are the property of their respective owners.

  • (For VS = 5V, Typical Unless Otherwise Noted)

  • Supply Current at 1.8V 16 µA
  • Operating Voltage Range 1.6V to 5.5V
  • Low TCVOS ±0.5 µV/°C (max)
  • VOS ±150 µV (max)
  • Input Bias Current 20 fA
  • PSRR 120 dB
  • CMRR 97 dB
  • Open Loop Gain 120 dB
  • Gain Bandwidth Product 130 kHz
  • Slew Rate 58 V/ms
  • Input Voltage Noise, f = 1 kHz 60 nV/√Hz
  • Temperature Range –40°C to 125°C

All trademarks are the property of their respective owners.

The LMP2232 is a dual micropower precision amplifier designed for battery powered applications. The 1.6V to 5.5V operating supply voltage range and quiescent power consumption of only 26 μW extend the battery life in portable systems. The LMP2232 is part of the LMP precision amplifier family. The high impedance CMOS input makes it ideal for instrumentation and other sensor interface applications.

The LMP2232 has a maximum offset voltage of 150 μV and maximum offset voltage drift of only 0.5 μV/°C along with low bias current of only ±20 fA. These precise specifications make the LMP2232 a great choice for maintaining system accuracy and long term stability.

The LMP2232 has a rail-to-rail output that swings 15 mV from the supply voltage, which increases system dynamic range. The common mode input voltage range extends 200 mV below the negative supply, thus the LMP2232 is ideal for ground sensing in single supply applications.

The LMP2232 is offered in 8-pin SOIC and VSSOP packages.

The LMP2231 is the single version of this product and the LMP2234 is the quad version of this product. Both of these products are available on Texas Instruments' website.

The LMP2232 is a dual micropower precision amplifier designed for battery powered applications. The 1.6V to 5.5V operating supply voltage range and quiescent power consumption of only 26 μW extend the battery life in portable systems. The LMP2232 is part of the LMP precision amplifier family. The high impedance CMOS input makes it ideal for instrumentation and other sensor interface applications.

The LMP2232 has a maximum offset voltage of 150 μV and maximum offset voltage drift of only 0.5 μV/°C along with low bias current of only ±20 fA. These precise specifications make the LMP2232 a great choice for maintaining system accuracy and long term stability.

The LMP2232 has a rail-to-rail output that swings 15 mV from the supply voltage, which increases system dynamic range. The common mode input voltage range extends 200 mV below the negative supply, thus the LMP2232 is ideal for ground sensing in single supply applications.

The LMP2232 is offered in 8-pin SOIC and VSSOP packages.

The LMP2231 is the single version of this product and the LMP2234 is the quad version of this product. Both of these products are available on Texas Instruments' website.

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Technical documentation

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Type Title Date
* Data sheet LMP2232 Dual Micropower, 1.6V, Precision, Operational Amplifier with CMOS Input datasheet (Rev. C) 25 Mar 2013
E-book The Signal e-book: A compendium of blog posts on op amp design topics 28 Mar 2017

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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
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.
User guide: PDF
Design tool

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 (...)
User guide: PDF
Design tool

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 (...)
Design tool

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 (...)
Design tool

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 (...)
User guide: PDF
Design tool

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 (...)
Design tool

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 (...)
User guide: PDF
Design tool

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.
User guide: PDF
Design tool

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 (...)
Design tool

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 (...)
User guide: PDF
Design tool

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 (...)
Design tool

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 (...)
Design tool

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 (...)
User guide: PDF
Design tool

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 (...)
User guide: PDF
Design tool

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.
Design tool

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.
User guide: PDF
Design tool

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 (...)
Design tool

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 (...)
Design tool

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 (...)
Design tool

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 (...)
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 (...)
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 (...)
User guide: PDF
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SOIC (D) 8 Ultra Librarian
VSSOP (DGK) 8 Ultra Librarian

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  • Ongoing reliability monitoring
Information included:
  • Fab location
  • Assembly location

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