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Precision op amps (Vos<1mV)

OPA188

ACTIVE

Precision, Low-Noise, Rail-to-Rail Output, 36V Zero-Drift Operational Amplifier

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Data sheet

OPA188

ACTIVE
Data sheet Order now

Product details

Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 36 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 4 Vos (offset voltage at 25°C) (max) (mV) 0.025 Offset drift (typ) (µV/°C) 0.03 Input bias current (max) (pA) 1400 GBW (typ) (MHz) 2 Features EMI Hardened, Zero Drift Slew rate (typ) (V/µs) 0.8 Rail-to-rail In to V-, Out Iq per channel (typ) (mA) 0.425 Vn at 1 kHz (typ) (nV√Hz) 8.8 CMRR (typ) (dB) 146 Rating Catalog Operating temperature range (°C) -40 to 125 Iout (typ) (A) 0.018 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) 0 Input common mode headroom (to positive supply) (typ) (V) -1.5 Output swing headroom (to negative supply) (typ) (V) 0.22 Output swing headroom (to positive supply) (typ) (V) -0.22 THD + N at 1 kHz (typ) (%) 0.0001
Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 36 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 4 Vos (offset voltage at 25°C) (max) (mV) 0.025 Offset drift (typ) (µV/°C) 0.03 Input bias current (max) (pA) 1400 GBW (typ) (MHz) 2 Features EMI Hardened, Zero Drift Slew rate (typ) (V/µs) 0.8 Rail-to-rail In to V-, Out Iq per channel (typ) (mA) 0.425 Vn at 1 kHz (typ) (nV√Hz) 8.8 CMRR (typ) (dB) 146 Rating Catalog Operating temperature range (°C) -40 to 125 Iout (typ) (A) 0.018 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) 0 Input common mode headroom (to positive supply) (typ) (V) -1.5 Output swing headroom (to negative supply) (typ) (V) 0.22 Output swing headroom (to positive supply) (typ) (V) -0.22 THD + N at 1 kHz (typ) (%) 0.0001
SOIC (D) 8 29.4 mm² 4.9 x 6 SOT-23 (DBV) 5 8.12 mm² 2.9 x 2.8 VSSOP (DGK) 8 14.7 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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Top documentation Type Title Format options Date
* Data sheet OPA188 Precision, Low-Noise, Rail-to-Rail Output, 36-V, Zero-Drift Operational Amplifier datasheet (Rev. C) PDF | HTML 27 Jan 2020
White paper Optimizing Chopper Amplifier Accuracy (Rev. A) PDF | HTML 15 May 2025
Application brief Offset Correction Methods: Laser Trim, e-Trim, and Chopper (Rev. D) PDF | HTML 05 Dec 2024
Circuit design AC coupled instrumentation amplifier circuit (Rev. A) PDF | HTML 09 Oct 2024
Circuit design Circuit for offset adjustment of input signals using precision DAC (Rev. A) PDF | HTML 19 Sep 2024
Circuit design Bipolar-to-Unipolar Level Translator Circuit, ±12 V to 0 V to 5 V PDF | HTML 18 Dec 2023
Circuit design Unipolar-to-Bipolar Level Translator Circuit, 0-V to 5-V Unipolar to ±12-V Bipolar PDF | HTML 07 Dec 2023
E-book An Engineer’s Guide to Designing with Precision Amplifiers 29 Apr 2021
Technical article How to design an accurate DC power supply PDF | HTML 08 Apr 2021
Application brief Zero-Drift Amplifiers: Features and Benefits (Rev. C) 28 Jan 2021
Application brief Minimize Errors in Weigh-Scales With Zero-Drift, EMI-Hardened, Precision Amps (Rev. A) PDF | HTML 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 brief EMI-Hardened Op Amps Reduce Errors in Infusion Pumps (Rev. A) 21 Aug 2019
Application brief Multichannel Analog Input Modules for PLC Equipment 04 Jan 2019
E-book The Signal e-book: A compendium of blog posts on op amp design topics 28 Mar 2017
E-book Analog Engineer’s Pocket Reference Guide Fifth Edition (Rev. D) PDF | HTML 30 Sep 2014
Application note Combined Voltage and Current Output with the DACx760 24 Jul 2014
Application note Compensate Transimpedance Amplifiers Intuitively (Rev. A) 30 Mar 2005

Design & development

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SOIC (D) 8 Ultra Librarian
SOT-23 (DBV) 5 Ultra Librarian
VSSOP (DGK) 8 Ultra Librarian
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