INA592 High-Precision, Wide-Bandwidth e-trim™ Difference Amplifier

1 Features

• G = 1/2 amplifier

• G = 2 amplifier

• Low offset voltage: 40 μV (maximum)

• Low offset voltage drift: ±2 μV/°C (maximum)

• Low noise: 18 nV/√Hz at 1 kHz

• Low gain error: ±0.03% (maximum)

• High common-mode rejection: 88 dB (minimum)

• Wide bandwidth: 2 MHz GBW

• Low quiescent current: 1.1 mA per amplifier

• High slew rate: 18 V/μs

• High capacitive load drive capability: 500 pF

• Wide supply range:

– Single supply: 4.5 V to 36 V

– Dual supply: ±2.25 V to ±18 V

• Specified temperature range:

–40°C to +125°C

• Packages: 8-Pin MSOP and SOIC, 10-pin VSON

2 Applications

• AC drive position feedback

• Servo drive position feedback

• Condition monitoring module (voltage, current)

• Power supply module

• Semiconductor test

3 Description

The INA592 device is a low-power, wide bandwidth

difference

amplifier

consisting

of

a

precision

operational amplifier (op amp) and a precision

resistor network. Excellent tracking of resistors (TCR)

maintains gain accuracy and common-mode rejection

over temperature. Unique features such as low offset

40 μV (maximum), low offset drift (2 μV/°C maximum)

high slew rate (18 V/μs), and high capacitive load

drive of up to 500 pF make the INA592 a robust,

high-performance difference amplifier for high-voltage

industrial applications. The common-mode range of

the internal op amp extends to the negative supply,

enabling the device to operate in single-supply

applications. The device operates on single (4.5 V to

36 V) or dual supplies (±2.25 V to ±18 V).

The difference amplifier is the foundation of many

commonly used circuits. The INA592 provides this

circuit function without using an expensive precision

resistor network.

Device Information

PART NUMBER

PACKAGE(1)

BODY SIZE (NOM)

INA592

SOIC (8)

4.90 mm × 3.91 mm

VSSOP (8)

3.00 mm × 3.00 mm

VSON (10)

3.00 mm × 3.00 mm

(1)

For all available packages, see the package option

addendum at the end of the data sheet.

16 Bits Out

AIN

ADC

V+

V±

REF

OUT

+IN

±IN

+

±

SENSE

VCC

INA592

12 k

6 k

12 k

6 k

IN

IN

OUT

1

V

V

V

2

u

INA592D/DGK in a Differential Input Data

Acquisition Application

Offset Voltage (PV)

0

5%

10%

15%

20%

-40

40

-32

-24

-16

-8

0

8

16

24

32

Typical Distribution of Offset Voltage (RTO)

G = 1/2, VS = ±18 V

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INA592

SBOS914F – OCTOBER 2018 – REVISED APRIL 2021

Copyright © 2021 Texas Instruments Incorporated

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INA592

SBOS914F – OCTOBER 2018 – REVISED APRIL 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. PRODUCTION DATA.