1 Features

• Low offset voltage: ±210μV

• Low offset voltage drift: ±0.25μV/°C

• Low noise: 7nV/√Hz at 1kHz, 4.4nV/√Hz

broadband

• High common-mode rejection: 115dB

• Low bias current: ±10pA

• Rail-to-rail input and output

• MUX-friendly/comparator inputs

– Amplifier operates with differential inputs up to

supply rail

– Amplifier can be used in open-loop or as

comparator

• Wide bandwidth: 10.6MHz GBW, unity-gain stable

• High slew rate: 32V/μs

• Low quiescent current: 2.4mA per amplifier

• Wide supply: ±1.35V to ±20V, 2.7V to 40V

• Robust EMIRR performance

2 Applications

• Multiplexed data-acquisition systems

• Test and measurement equipment

• Motor drive: power stage and control modules

• Power delivery: UPS, server, and merchant

network power

• ADC driver and reference buffer amplifier

• Programmable logic controllers

• Analog input and output modules

• High-side and low-side current sensing

• High precision comparator

3 Description

The OPAx992 family (OPA992, OPA2992, and

OPA4992) is a family of high voltage (40V) general

purpose operational amplifiers. These devices offer

excellent DC precision and AC performance, including

rail-to-rail input/output, low offset (±210μV, typical),

low offset drift (±0.25μV/°C, typical) and low noise

(7nV/√Hz at 1kHz, 4.4nV/√Hz at 10kHz).

Features such as differential and common-mode input

voltage ranges to the supply rails, high short-circuit

current (±65mA), and high slew rate (32V/μs) make

the OPAx992 a flexible, robust, and high-performance

op amp for high-voltage industrial applications.

The OPAx992 family of op amps is available in smallsize

packages (such as X2QFN and WSON), as well

as standard packages (such as SOT-23, SOIC, and

TSSOP), and is specified from –40°C to 125°C.