OPAx992 40-V Rail-to-Rail Input/Output, Low Offset Voltage, Low Noise Op Amp

1 Features

• Low offset voltage: ±200 µV

• Low offset voltage drift: ±0.5 µV/°C

• Low noise: 6 nV/√Hz at 1 kHz, 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-MHz GBW

• High slew rate: 35 V/µs

• Low quiescent current: 2.2 mA per amplifier

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

• Robust EMIRR performance: TBA

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 (±200 µV, typ), low

offset drift (±0.5 µV/°C, typ) and low noise (6 nV/√Hz

at 1 kHz).

Features such as differential and common-mode input

voltage ranges to the supply rails, high short-circuit

current (±80 mA), and high slew rate (35 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 micro-

size 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.

Device Information

PART NUMBER(1)

PACKAGE

BODY SIZE (NOM)

OPA992

SOT-23 (5)(2)

2.90 mm × 1.60 mm

SOT-23 (6)(2)

2.90 mm × 1.60 mm

SC70 (6)(2)

2.00 mm × 1.25 mm

OPA2992

SOIC (8)(2)

4.90 mm × 3.90 mm

SOT-23 (8)(2)

2.90 mm × 1.60 mm

TSSOP (8)(2)

3.00 mm × 4.40 mm

VSSOP (8)(2)

3.00 mm × 3.00 mm

WSON (8)

2.00 mm × 2.00 mm

OPA4992

SOIC (14)(2)

8.65 mm × 3.90 mm

TSSOP (14)(2)

5.00 mm × 4.40 mm

SOT-23-THN-14 (14)(2) 4.20 mm × 2.00 mm

X2QFN (14)(2)

2.00 mm × 2.00 mm

(1)

For all available packages, see the orderable addendum at

the end of the data sheet.

(2)

This package is preview only.

System

Load

+

–

+

GND

+

System

Load

+

–

+

+

GND

+

GND

GND

+

MCU

Signal

MCU

GND

Signal

GND

OPAx992

OPAx992

Low-Side Current Sense

High-Side Current Sense

OPAx992 in Current-Sensing Applications

OPA992, OPA2992, OPA4992

SBOSA10 – JUNE 2021

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. ADVANCE INFORMATION for preproduction products; subject to change

without notice.