®
INA105
Precision Unity Gain
DIFFERENTIAL AMPLIFIER
FEATURES
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CMR 86dB min OVER TEMPERATURE
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GAIN ERROR: 0.01% max
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NONLINEARITY: 0.001% max
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NO EXTERNAL ADJUSTMENTS
REQUIRED
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EASY TO USE
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COMPLETE SOLUTION
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HIGHLY VERSATILE
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LOW COST
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PLASTIC DIP, TO-99 HERMETIC METAL,
AND SO-8 SOIC PACKAGES
APPLICATIONS
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DIFFERENTIAL AMPLIFIER
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INSTRUMENTATION AMPLIFIER
BUILDING BLOCK
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UNITY-GAIN INVERTING AMPLIFIER
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GAIN-OF-1/2 AMPLIFIER
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NONINVERTING GAIN-OF-2 AMPLIFIER
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AVERAGE VALUE AMPLIFIER
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ABSOLUTE VALUE AMPLIFIER
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SUMMING AMPLIFIER
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SYNCHRONOUS DEMODULATOR
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CURRENT RECEIVER WITH COMPLIANCE
TO RAILS
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4mA TO 20mA TRANSMITTER
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VOLTAGE-CONTROLLED CURRENT
SOURCE
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ALL-PASS FILTERS
DESCRIPTION
The INA105 is a monolithic Gain = 1 differential
amplifier consisting of a precision op amp and on-chip
metal film resistors. The resistors are laser trimmed
for accurate gain and high common-mode rejection.
Excellent TCR tracking of the resistors maintains
gain accuracy and common-mode rejection over
temperature.
The differential amplifier is the foundation of many
commonly used circuits. The INA105 provides this
precision circuit function without using an expensive
precision resistor network. The INA105 is available in
8-pin plastic DIP, SO-8 surface-mount and TO-99
metal packages.
–In
2
25kΩ
25kΩ
5
7
6
4
+In
3
25kΩ
25kΩ
1
Sense
V+
Output
V–
Ref
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
©
1985 Burr-Brown Corporation
PDS-617G
Printed in U.S.A. August, 1993
BURR-BROWN [ BURR-BROWN CORPORATION ]
