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OPA2333
  • OPA2333
  • OPA2333
  • OPA2333
  • OPA2333

OPA2333

ACTIVE

1.8-V, 17-µA, two-channel, micropower zero-drift CMOS operational amplifier

Texas Instruments OPA2333 Product Info

1 April 2026 2

Parameters

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)

1.8

Vos (offset voltage at 25°C) (max) (mV)

0.01

Offset drift (typ) (µV/°C)

0.02

Input bias current (max) (pA)

200

GBW (typ) (MHz)

0.35

Features

EMI Hardened, Small Size, Zero Drift

Slew rate (typ) (V/µs)

0.16

Rail-to-rail

In, Out

Iq per channel (typ) (mA)

0.017

Vn at 1 kHz (typ) (nV√Hz)

55

CMRR (typ) (dB)

130

Rating

Catalog

Operating temperature range (°C)

-40 to 125

Iout (typ) (A)

0.005

Architecture

CMOS

Input common mode headroom (to negative supply) (typ) (V)

-0.1

Input common mode headroom (to positive supply) (typ) (V)

0.1

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

0.03

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

-0.03

Package

SOIC (D)-8-29.4 mm² 4.9 x 6

Features

  • Low Offset Voltage: 10 µV (Maximum)
  • Zero Drift: 0.05 µV/°C (Maximum)
  • 0.01-Hz to 10-Hz Noise: 1.1 µVPP
  • Quiescent Current: 17 µA
  • Single-Supply Operation
  • Supply Voltage: 1.8 V to 5.5V
  • Rail-to-Rail Input/Output
  • microSize Packages: SC70 and SOT23
  • Low Offset Voltage: 10 µV (Maximum)
  • Zero Drift: 0.05 µV/°C (Maximum)
  • 0.01-Hz to 10-Hz Noise: 1.1 µVPP
  • Quiescent Current: 17 µA
  • Single-Supply Operation
  • Supply Voltage: 1.8 V to 5.5V
  • Rail-to-Rail Input/Output
  • microSize Packages: SC70 and SOT23

Description

The OPAx333 series of CMOS operational amplifiers use a proprietary auto-calibration technique to simultaneously provide very low offset voltage (10 µV, maximum) and near-zero drift over time and temperature. These miniature, high-precision, low quiescent current amplifiers offer high-impedance inputs that have a common-mode range 100 mV beyond the rails, and rail-to-rail output that swings within 50 mV of the rails. Single or dual supplies as low as 1.8 V (±0.9 V) and up to 5.5 V (±2.75 V) can be used. These devices are optimized for low-voltage, single-supply operation.

The OPAx333 family offers excellent CMRR without the crossover associated with traditional complementary input stages. This design results in superior performance for driving analog-to-digital converters (ADCs) without degradation of differential linearity.

The OPA333 (single version) is available in the 5-pin SOT-23, SOT, and 8-pin SOIC packages, while the OPA2333 (dual version) is available in the 8-pin VSON, SOIC, and VSSOP packages. All versions are specified for operation from –40°C to 125°C.

The OPAx333 series of CMOS operational amplifiers use a proprietary auto-calibration technique to simultaneously provide very low offset voltage (10 µV, maximum) and near-zero drift over time and temperature. These miniature, high-precision, low quiescent current amplifiers offer high-impedance inputs that have a common-mode range 100 mV beyond the rails, and rail-to-rail output that swings within 50 mV of the rails. Single or dual supplies as low as 1.8 V (±0.9 V) and up to 5.5 V (±2.75 V) can be used. These devices are optimized for low-voltage, single-supply operation.

The OPAx333 family offers excellent CMRR without the crossover associated with traditional complementary input stages. This design results in superior performance for driving analog-to-digital converters (ADCs) without degradation of differential linearity.

The OPA333 (single version) is available in the 5-pin SOT-23, SOT, and 8-pin SOIC packages, while the OPA2333 (dual version) is available in the 8-pin VSON, SOIC, and VSSOP packages. All versions are specified for operation from –40°C to 125°C.

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