Low Power, Single-Supply

DIFFERENCE AMPLIFIER

PDS-1353A

Printed in U.S.A. November, 1996

®

FEATURES

q LOW QUIESCENT CURRENT: 160

q WIDE SUPPLY RANGE

Single Supply: 2.7V to 36V

Dual Supplies:

q LOW GAIN ERROR:

q LOW NONLINEARITY: 0.001% max

q HIGH CMR: 90dB

q HIGHLY VERSATILE CIRCUIT

q EASY TO USE

q LOW COST

q 8-PIN DIP AND SO-8 PACKAGES

INA132

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/ • FAXLine: (800) 548-6133 (US/Canada Only) • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132

DESCRIPTION

The INA132 is a low power, unity-gain differential

amplifier consisting of a precision op amp with a

precision resistor network. The on-chip resistors are

laser trimmed for accurate gain and high common-

mode rejection. Excellent TCR tracking of the resis-

tors maintains gain accuracy and common-mode re-

jection over temperature. The internal op amp’s com-

mon-mode range extends to the negative supply—

ideal for single-supply applications. It operates on

single (2.7V to 36V) or dual supplies (

±1.35V to

±18V).

The differential amplifier is the foundation of many

commonly used circuits. The INA132 provides this

circuit function without using an expensive precision

resistor network. The INA132 is available in 8-pin

DIP and SO-8 surface-mount packages and is speci-

fied for operation over the extended industrial tem-

perature range, –40

°C to +85°C.

APPLICATIONS

q DIFFERENTIAL INPUT AMPLIFIER

q INSTRUMENTATION AMPLIFIER

BUILDING BLOCK

q UNITY-GAIN INVERTING AMPLIFIER

q G = 1/2 AMPLIFIER

q G = 2 AMPLIFIER

q SUMMING AMPLIFIER

q DIFFERENTIAL CURRENT RECEIVER

q VOLTAGE-CONTROLLED CURRENT SOURCE

q BATTERY-POWERED SYSTEMS

q GROUND LOOP ELIMINATOR

2

3

4

–In

+In

V–

40k

Ω

40k

Ω

40k

Ω

40k

Ω

5

1

Sense

Ref

6

Output

7

V+

INA132

INA132

SBOS059