INA132U Datasheet, PDF (1/13 Pages) Texas Instruments – Low Power, Single-Supply DIFFERENCE AMPLIFIER

®
INA132
INA132
INA132
Low Power, Single-Supply
DIFFERENCE AMPLIFIER
FEATURES
q LOW QUIESCENT CURRENT: 160µA
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: 0.001% max
q HIGH CMR: 90dB
q HIGHLY VERSATILE CIRCUIT
q EASY TO USE
q LOW COST
q 8-PIN DIP AND SO-8 PACKAGES
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
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.
40kΩ
–In ²
40kΩ
+In ³
V+
7
40kΩ
5 _Sense
40kΩ
4
V–
6 _Output
1 _Ref
SBOS059
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©1996 Burr-Brown Corporation
PDS-1353A
Printed in U.S.A. November, 1996