1

2

3

4

8

7

6

5

IN+

NC

(1)

V+

OUT

IN-

GND

PREOUT

BUFIN

INA27x

3

INA270, INA271

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SBOS381E – FEBRUARY 2007 – REVISED JANUARY 2018

Product Folder Links: INA270 INA271

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5 Device Comparison Table

DEVICE

GAIN

INA270

14 V/V

INA271

20 V/V

6 Pin Configuration and Functions

D Package

SOIC-8

Top View

NOTE (1): NC denotes no internal connection.

Pin Functions

PIN

I/O

DESCRIPTION

NAME

NO.

BUF IN

4

Analog input

Connect to output of filter from PRE OUT

GND

2

Analog

Ground

IN–

1

Analog input

Connect to load side of shunt resistor

IN+

8

Analog input

Connect to supply side of shunt resistor

NC

7

—

Connect to ground

OUT

5

Analog output

Output voltage

PRE OUT

3

Analog output

Connect to input of filter to BUF IN

V+

6

Analog input

Power supply, +2.7 V to +18 V

(1)

Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings

only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended

Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

7 Specifications

7.1 Absolute Maximum Ratings

(1)

MIN

MAX

UNIT

Supply voltage (VS)

+18

V

Analog inputs, VIN+, VIN–:

Differential, (VIN+) – (VIN–)

–18

+18

V

Common-mode

–16

+80

V

Analog output: OUT and PRE OUT pins

GND – 0.3

(V+) + 0.3

V

Input current into any pin

5

mA

Operating temperature

–55

+150

°C

Junction temperature

+150

°C

Storage temperature, Tstg

–65

+150

°C