®

INA148

©1999 Burr-Brown Corporation

PDS-1579A

Printed in U.S.A.December, 1999

FEATURES

q HIGH COMMON-MODE VOLTAGE:

+75V at V

S = +5V

±200V at V

S = ±15V

q FIXED DIFFERENTIAL GAIN = 1V/V

q LOW QUIESCENT CURRENT: 260

µA

q WIDE SUPPLY RANGE:

Single Supply: 2.7V to 36V

Dual Supplies:

±1.35V to ±18V

q LOW GAIN ERROR: 0.075% max

q LOW NONLINEARITY: 0.002% max

q HIGH CMR: 86dB

q SO-8 PACKAGE

±200V Common-Mode Voltage

DIFFERENCE AMPLIFIER

DESCRIPTION

The INA148 is a precision, low-power, unity-gain

difference amplifier with a high common-mode input

voltage range. It consists of a monolithic precision

bipolar op amp with a thin-film resistor network.

The on-chip resistors are laser trimmed for an accu-

rate 1V/V differential gain and high common-mode

rejection. Excellent temperature tracking of the resis-

tor network maintains high gain accuracy and com-

mon-mode rejection over temperature. The INA148

will operate on single or dual supplies.

The INA148 is available in a small SO-8 surface-

mount package and it is specified for the –40

°C to

+85

°C extended industrial temperature range.

APPLICATIONS

q CURRENT SHUNT MEASUREMENTS

q DIFFERENTIAL SENSOR AMPLIFIERS

q LINE RECEIVERS

q BATTERY POWERED SYSTEMS

q AUTOMOTIVE INSTRUMENTATION

q STACKED CELL MONITORS

International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: (520) 746-1111

Twx: 910-952-1111 • Internet: http://www.burr-brown.com/ • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132

For most current data sheet and other product

information, visit www.burr-brown.com

INA148

1M

Ω

50k

Ω

52.6316k

Ω

50k

Ω

2.7778k

Ω

1M

Ω

V+

V

IN

7

3

2

6

41

A1

INA148

V–

Ref

V

O

+

V

IN

–

SBOS123