1 Features

• Low offset voltage: ±210 μV

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

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

broadband

• High common-mode rejection: 115 dB

• Low bias current: ±10 pA

• 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: 10.6-MHz GBW, unity-gain stable

• High slew rate: 32 V/μs

• Low quiescent current: 2.4 mA per amplifier

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

• 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 (40 V) general

purpose operational amplifiers. These devices offer

excellent DC precision and AC performance, including

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

offset drift (±0.25 μV/°C, typ) and low noise (7 nV/√Hz

at 1 kHz, 4.4 nV/√Hz at 10 kHz).

Features such as differential and common-mode input

voltage ranges to the supply rails, high short-circuit

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

packages (such as WSON), as well as standard

packages (such as SOT-23, SOIC, and TSSOP), and

is specified from –40°C to 125°C.