INA253

REF2

VS

OUT

GND

IN+

IN±

±

+

REF1

Up To 80 V

2.7-V to 5.5-V

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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.

INA253

SLOS954A – JULY 2018 – REVISED DECEMBER 2018

INA253 High Voltage, Bidirectional, Zero-Drift, Current-Shunt Monitor

With Integrated, 2-mΩ, Precision, Low Inductive Shunt Resistor

1

1 Features

1

•

Precision Integrated Shunt Resistor

–

Shunt Resistor: 2 mΩ

–

Shunt Inductance: 3 nH

–

Shunt Resistor Tolerance: 0.1% (Max)

–

±15 A Continuous from –40°C to +85°C

–

0°C to 125°C Temperature Coefficient:

10 ppm/°C

•

High Bandwidth: 350 kHz

•

Enhanced PWM rejection

•

Excellent CMRR

–

> 120-dB DC CMRR

–

90-dB AC CMRR at 50 kHz

•

Accuracy:

–

Gain:

–

Gain Error: 0.4% (Max)

–

Gain Drift: 45 ppm/°C (Max)

–

Offset:

–

Offset Current: ±15 mA (Max)

–

Offset Drift: 125 µA/°C (Max)

•

Wide Common-Mode Range: –4 V to +80 V

•

Available Gains: 100 mV/A, 200 mV/A,

and 400 mV/A

•

Quiescent Current: 2.4 mA (Max)

2 Applications

•

Solenoid and Valve Controls

•

Transmission control

•

Motor Controls

•

Actuator Controls

•

DC/DC Converters

•

Remote I/O Link Control

3 Description

The INA253 is a voltage-output, current sense

amplifier with an integrated shunt resistor of 2 mΩ.

The INA253 is designed to monitor bidirectional

currents over a wide common-mode range from

–4 V to +80 V, independent of the supply voltage.

Three fixed gains are available: 100 mV/A, 200 mV/A,

and 400 mV/A. The integration of the precision

resistor with a zero-drift chopped amplifier provides

calibration equivalent measurement accuracy, ultra-

low temperature drift performance of 15 ppm/°C, and

an optimized Kelvin layout for the sensing resistor.

The INA253 is designed with enhanced PWM

rejection circuitry to suppress large (dv/dt) signals

that

enable

real-time

continuous

current

measurements. The measurements are critical for in-

line

current

measurements

in

a

motor-drive

application,

and

for

solenoid

valve

control

applications.

This device operates from a single 2.7-V to 5.5-V

power supply, drawing a maximum of 3 mA of supply

current. All gain versions are specified over the

extended operating temperature range (–40°C to

+125°C), and are available in a 20-pin TSSOP

package.

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

INA253

TSSOP (20)

6.50 mm × 4.40 mm

(1) For all available packages, see the package option addendum

at the end of the data sheet.

Typical Application