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Precision op amps (Vos<1mV)

OPA182

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Highest-precision, 36-V, 5-MHz, single, low-noise, zero-drift, MUX-friendly amplifier

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Data sheet

OPA182

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) 4.5 Vos (offset voltage at 25°C) (max) (mV) 0.004 GBW (typ) (MHz) 5 Features EMI Hardened, MUX Friendly, Zero Drift Slew rate (typ) (V/µs) 10 Rail-to-rail In to V-, Out Offset drift (typ) (µV/°C) 0.003 Iq per channel (typ) (mA) 0.85 Vn at 1 kHz (typ) (nV√Hz) 5.7 CMRR (typ) (dB) 168 Rating Catalog Operating temperature range (°C) -40 to 125 Input bias current (max) (pA) 350 Iout (typ) (A) 0.065 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) -0.1 Input common mode headroom (to positive supply) (typ) (V) -2.5 Output swing headroom (to negative supply) (typ) (V) 0.02 Output swing headroom (to positive supply) (typ) (V) 0.02 THD + N at 1 kHz (typ) (%) 0.00008
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) 4.5 Vos (offset voltage at 25°C) (max) (mV) 0.004 GBW (typ) (MHz) 5 Features EMI Hardened, MUX Friendly, Zero Drift Slew rate (typ) (V/µs) 10 Rail-to-rail In to V-, Out Offset drift (typ) (µV/°C) 0.003 Iq per channel (typ) (mA) 0.85 Vn at 1 kHz (typ) (nV√Hz) 5.7 CMRR (typ) (dB) 168 Rating Catalog Operating temperature range (°C) -40 to 125 Input bias current (max) (pA) 350 Iout (typ) (A) 0.065 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) -0.1 Input common mode headroom (to positive supply) (typ) (V) -2.5 Output swing headroom (to negative supply) (typ) (V) 0.02 Output swing headroom (to positive supply) (typ) (V) 0.02 THD + N at 1 kHz (typ) (%) 0.00008
SOIC (D) 8 29.4 mm² 4.9 x 6 SOT-23 (DBV) 5 8.12 mm² 2.9 x 2.8
  • Ultra-high precision:
    • Zero-drift: 0.003 µV/°C
    • Ultra-low offset voltage: 4 µV (maximum)
  • Excellent dc precision:
    • CMRR: 168 dB
    • Open-loop gain: 170 dB
  • Low noise:
    • en at 1 kHz: 5.7 nV/√Hz
    • 0.1-Hz to 10-Hz noise: 0.12 µVPP
  • Excellent dynamic performance:
    • Gain bandwidth: 5 MHz
    • Slew rate: 10 V/µs
    • Fast settling: 10-V step, 0.01% in 1.7 µs
  • Robust design:
    • MUX-friendly inputs
    • RFI and EMI filtered inputs
  • Wide supply: ±2.25 V to ±18 V, 4.5 V to 36 V
  • Quiescent current: 0.85 mA
  • Rail-to-rail output
  • Input includes negative rail
  • Ultra-high precision:
    • Zero-drift: 0.003 µV/°C
    • Ultra-low offset voltage: 4 µV (maximum)
  • Excellent dc precision:
    • CMRR: 168 dB
    • Open-loop gain: 170 dB
  • Low noise:
    • en at 1 kHz: 5.7 nV/√Hz
    • 0.1-Hz to 10-Hz noise: 0.12 µVPP
  • Excellent dynamic performance:
    • Gain bandwidth: 5 MHz
    • Slew rate: 10 V/µs
    • Fast settling: 10-V step, 0.01% in 1.7 µs
  • Robust design:
    • MUX-friendly inputs
    • RFI and EMI filtered inputs
  • Wide supply: ±2.25 V to ±18 V, 4.5 V to 36 V
  • Quiescent current: 0.85 mA
  • Rail-to-rail output
  • Input includes negative rail

The OPA182, OPA2182, and OPA4182 (OPAx182) are ultra-low noise, fast-settling, zero-drift, high-precision operational amplifiers, These devices provide rail-to-rail output operation and feature a unique MUX-friendly architecture and controlled start-up system. These devices also feature excellent ac performance combined with only 0.45 µV of offset voltage and 0.003 µV/°C of drift over temperature. All these features make the OPAx182 a great choice for data acquisition, battery test, analog input modules, weigh scales, and any other systems requiring high dc precision and low noise.

The MUX-friendly input architecture prevents inrush current when applying large input differential voltages and improves settling performance in multichannel systems. Moreover, the controlled start-up system rejects any inrush current when ramping up the supply rails, all while providing robust ESD protection during shipment, handling, and assembly.

The device is specified from –40°C to +125°C.

The OPA182, OPA2182, and OPA4182 (OPAx182) are ultra-low noise, fast-settling, zero-drift, high-precision operational amplifiers, These devices provide rail-to-rail output operation and feature a unique MUX-friendly architecture and controlled start-up system. These devices also feature excellent ac performance combined with only 0.45 µV of offset voltage and 0.003 µV/°C of drift over temperature. All these features make the OPAx182 a great choice for data acquisition, battery test, analog input modules, weigh scales, and any other systems requiring high dc precision and low noise.

The MUX-friendly input architecture prevents inrush current when applying large input differential voltages and improves settling performance in multichannel systems. Moreover, the controlled start-up system rejects any inrush current when ramping up the supply rails, all while providing robust ESD protection during shipment, handling, and assembly.

The device is specified from –40°C to +125°C.
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Type Title Date
* Data sheet OPAx182 36-V, 5-MHz, Low-Noise, Zero-Drift, MUX-Friendly, Precision Op Amps datasheet (Rev. E) PDF | HTML 30 Aug 2022
White paper Optimizing Chopper Amplifier Accuracy PDF | HTML 27 Feb 2024
Application note Static Magnet Power Supply Design for Magnetic Resonance Imaging Application PDF | HTML 22 Jan 2024
Application brief MUX-Friendly, Precision Operational Amplifiers (Rev. C) PDF | HTML 08 Feb 2022
Application note Voltage-to-current (V-I) converter circuit with MOSFET (Rev. A) PDF | HTML 20 Aug 2021
Application brief Minimize Errors in Weigh-Scales With Zero-Drift, EMI-Hardened, Precision Amps (Rev. A) PDF | HTML 08 Dec 2020
Application brief How to Select Precision Amplifiers for Semiconductor Testers (Rev. A) PDF | HTML 03 Dec 2020
Analog Design Journal Precision signal conditioning for safety-enabled AIMs in factory automation 30 Sep 2019
Application note Compensate Transimpedance Amplifiers Intuitively (Rev. A) 30 Mar 2005

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