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OPA2182
  • OPA2182
  • OPA2182
  • OPA2182
  • OPA2182
  • OPA2182

OPA2182

ACTIVE

Industry’s lowest offset drift (0.012 uV/˚C, max), 5.7 nV/rtHz, MUX-friendly 36V op amp

Texas Instruments OPA2182 Product Info

1 April 2026 0

Parameters

Number of channels

2

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

Offset drift (typ) (µV/°C)

0.003

Input bias current (max) (pA)

350

GBW (typ) (MHz)

5

Features

EMI Hardened, MUX Friendly, Zero Drift

Slew rate (typ) (V/µs)

10

Rail-to-rail

Out

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

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)

0.005

Output swing headroom (to positive supply) (typ) (V)

-0.005

THD + N at 1 kHz (typ) (%)

0.00008

Package

SOIC (D)-8-29.4 mm² 4.9 x 6

Features

  • 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

Description

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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