®
INA1
3
2
INA132
INA1
32
Low Power, Single-Supply
DIFFERENCE AMPLIFIER
FEATURES
q
LOW QUIESCENT CURRENT: 160
µ
A
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.
V+
7
40kΩ
40kΩ
–In
2
5
Sense
6
Output
+In
3
40kΩ
40kΩ
1
Ref
4
V–
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
©
1996 Burr-Brown Corporation
PDS-1353A
Printed in U.S.A. November, 1996
SBOS059
TI [ TEXAS INSTRUMENTS ]
