OPAx992-Q1 Automotive, 40-V Rail-to-Rail Input/Output,

Low Offset Voltage, Low Noise Op Amp

1 Features

• AEC-Q100 qualified for automotive applications

– Temperature grade 1: –40°C to +125°C, TA

– Device HBM ESD classification level 2A

– Device CDM ESD classification level C6

• 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

• Automotive head unit

• Automotive external amplifier

• Emergency call (eCall)

• Telematics control unit (TCU)

• Traction inverter

• HEV/EV on-board and wireless charger (OBC)

• HEV/EV DC/DC converter

• High-side and low-side current sensing

3 Description

The OPAx992-Q1 family (OPA992-Q1, OPA2992-Q1,

and OPA4992-Q1) 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-Q1 a flexible, robust, and high-

performance op amp for high-voltage automotive

applications.

The OPAx992-Q1 family of op amps is available in

standard packages (such as SOIC, TSSOP, VSSOP,

SOT-23 and SC70), and is specified from –40°C to

125°C.

Device Information

PART NUMBER(1)

PACKAGE

BODY SIZE (NOM)

OPA992-Q1

SC70 (5)(2)

2.00 mm × 1.25 mm

SOT-23 (5)(2)

2.90 mm × 1.60 mm

OPA2992-Q1

VSSOP (8)

3.00 mm × 3.00 mm

SOIC (8)(2)

4.90 mm × 3.90 mm

OPA4992-Q1

TSSOP (14)(2)

5.00 mm × 4.40 mm

SOIC (14)(2)

8.65 mm × 3.90 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

Vbus

Vbus

GND

Vshunt

Rshunt

Rshunt

Vo

Vo

Iload

Iload

+

MCU

MCU

GND

GND

OPAx992

OPAx992

Low-Side Current Sense

High-Side Current Sense

Vshunt

-

-

-

-

-

-

OPAx992-Q1 in Current-Sensing Applications

OPA992-Q1, OPA2992-Q1, OPA4992-Q1

SBOSAC9A – AUGUST 2022 – REVISED DECEMBER 2022

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. UNLESS OTHERWISE NOTED, this document contains PRODUCTION

DATA.