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.