Product details

Number of channels (#) 1 Total supply voltage (Max) (+5V=5, +/-5V=10) 36 Total supply voltage (Min) (+5V=5, +/-5V=10) 4 Vos (offset voltage @ 25 C) (Max) (mV) 0.025 GBW (Typ) (MHz) 2 Features EMI Hardened, Zero Drift Slew rate (Typ) (V/us) 0.8 Rail-to-rail In to V-, Out Offset drift (Typ) (uV/C) 0.03 Iq per channel (Typ) (mA) 0.425 Vn at 1 kHz (Typ) (nV/rtHz) 8.8 CMRR (Typ) (dB) 146 Rating Catalog Operating temperature range (C) -40 to 125 Input bias current (Max) (pA) 1400 Output current (Typ) (mA) 18 Architecture CMOS THD + N @ 1 kHz (Typ) (%) 0.0001
Number of channels (#) 1 Total supply voltage (Max) (+5V=5, +/-5V=10) 36 Total supply voltage (Min) (+5V=5, +/-5V=10) 4 Vos (offset voltage @ 25 C) (Max) (mV) 0.025 GBW (Typ) (MHz) 2 Features EMI Hardened, Zero Drift Slew rate (Typ) (V/us) 0.8 Rail-to-rail In to V-, Out Offset drift (Typ) (uV/C) 0.03 Iq per channel (Typ) (mA) 0.425 Vn at 1 kHz (Typ) (nV/rtHz) 8.8 CMRR (Typ) (dB) 146 Rating Catalog Operating temperature range (C) -40 to 125 Input bias current (Max) (pA) 1400 Output current (Typ) (mA) 18 Architecture CMOS THD + N @ 1 kHz (Typ) (%) 0.0001
SOIC (D) 8 19 mm² 4.9 x 3.9 SOT-23 (DBV) 5 5 mm² 2.9 x 1.6 VSSOP (DGK) 8 15 mm² 3 x 4.9
  • Low offset voltage: 25 µV (maximum)
  • Zero drift: 0.03 µV/°C
  • Low noise: 8.8 nV/√Hz
    • 0.1-Hz to 10-Hz Noise: 0.25 µVPP
  • Excellent dc precision:
    • PSRR: 142 dB
    • CMRR: 146 dB
    • Open-loop gain: 136 dB
  • Gain bandwidth: 2 MHz
  • Quiescent current: 510 µA (Maximum)
  • Wide supply range: ±2 V to ±18 V
  • Rail-to-rail output
  • Input includes negative rail
  • RFI filtered inputs
  • MicroSIZE packages
  • Low offset voltage: 25 µV (maximum)
  • Zero drift: 0.03 µV/°C
  • Low noise: 8.8 nV/√Hz
    • 0.1-Hz to 10-Hz Noise: 0.25 µVPP
  • Excellent dc precision:
    • PSRR: 142 dB
    • CMRR: 146 dB
    • Open-loop gain: 136 dB
  • Gain bandwidth: 2 MHz
  • Quiescent current: 510 µA (Maximum)
  • Wide supply range: ±2 V to ±18 V
  • Rail-to-rail output
  • Input includes negative rail
  • RFI filtered inputs
  • MicroSIZE packages

The OPA188 operational amplifier uses TI’s proprietary auto-zeroing techniques to provide low offset voltage (25-µV maximum) and near zero-drift over time and temperature. This miniature, high-precision, low-quiescent current amplifier offers high input impedance and rail-to-rail output swing within 15 mV of the rails. The input common-mode range includes the negative rail. Either single or dual supplies can be used in the range from 4 V to 36 V (±2 V to ±18 V).

The single version is available in the MicroSIZE SOT-23-5, MSOP-8, and SO-8 packages. All versions are specified for operation from –40°C to +125°C.

The OPA188 operational amplifier uses TI’s proprietary auto-zeroing techniques to provide low offset voltage (25-µV maximum) and near zero-drift over time and temperature. This miniature, high-precision, low-quiescent current amplifier offers high input impedance and rail-to-rail output swing within 15 mV of the rails. The input common-mode range includes the negative rail. Either single or dual supplies can be used in the range from 4 V to 36 V (±2 V to ±18 V).

The single version is available in the MicroSIZE SOT-23-5, MSOP-8, and SO-8 packages. All versions are specified for operation from –40°C to +125°C.

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Technical documentation

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Type Title Date
* Data sheet OPA188 Precision, Low-Noise, Rail-to-Rail Output, 36-V, Zero-Drift Operational Amplifier datasheet (Rev. C) 27 Jan 2020
E-book An Engineer’s Guide to Designing with Precision Amplifiers 29 Apr 2021
Application note Offset Correction Methods: Laser Trim, e-Trim, and Chopper (Rev. C) 13 Apr 2021
Technical article How to design an accurate DC power supply 08 Apr 2021
Application note Zero-Drift Amplifiers: Features and Benefits (Rev. C) 28 Jan 2021
Application note Minimize Errors in Weigh-Scales With Zero-Drift, EMI-Hardened, Precision Amps (Rev. A) 08 Dec 2020
White paper 設計準確且多功能的鋰離子 電池測試解決方案 10 Nov 2020
White paper Designing an Accurate, Multifunction Lithium-Ion Battery-Testing Solution 24 Sep 2020
Application note EMI-Hardened Op Amps Reduce Errors in Infusion Pumps (Rev. A) 21 Aug 2019
Application note Circuit for offset adjustment of input signals using precision DAC 25 Jan 2019
Application note AC coupled instrumentation amplifier circuit 09 Jan 2019
Application note Multichannel Analog Input Modules for PLC Equipment 04 Jan 2019
E-book Analog Engineer’s Pocket Reference Guide Fifth Edition (Rev. C) 30 Nov 2018
E-book The Signal e-book: A compendium of blog posts on op amp design topics 28 Mar 2017
Application note Combined Voltage and Current Output with the DACx760 24 Jul 2014
Technical article What you need to know about CMRR - the operational amplifier (Part 1) 14 Oct 2013
Technical article DAC Essentials: How accurate is your DAC? 09 Oct 2013
Technical article How to read data sheet specs and test conditions - tricky stuff! 22 Jul 2013
Application note Compensate Transimpedance Amplifiers Intuitively (Rev. A) 30 Mar 2005

Design & development

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SOIC (D) 8 View options
SOT-23 (DBV) 5 View options
VSSOP (DGK) 8 View options

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