OPA177 Datasheet, PDF (1/7 Pages) Burr-Brown (TI) – Precision OPERATIONAL AMPLIFIER

®
OPA177
OPA177
OPA177
Precision
OPERATIONAL AMPLIFIER
FEATURES
q LOW OFFSET VOLTAGE: 25µV max
q LOW DRIFT: 0.3µV/°C
q HIGH OPEN-LOOP GAIN: 130dB min
q LOW QUIESCENT CURRENT: 1.5mA typ
q REPLACES INDUSTRY-STANDARD OP
AMPS: OP-07, OP-77, OP-177, AD707,
ETC.
DESCRIPTION
The OPA177 precision bipolar op amp feature very
low offset voltage and drift. Laser-trimmed offset,
drift and input bias current virtually eliminate the need
for costly external trimming. The high performance
and low cost make them ideally suited to a wide range
of precision instrumentation.
The low quiescent current of the OPA177 dramati-
cally reduce warm-up drift and errors due to thermo-
V+
7
Trim
1
14kΩ
Trim
8
APPLICATIONS
q PRECISION INSTRUMENTATION
q DATA ACQUISITION
q TEST EQUIPMENT
q BRIDGE AMPLIFIER
q THERMOCOUPLE AMPLIFIER
electric effects in input interconnections. It provides
an effective alternative to chopper-stabilized amplifi-
ers. The low noise of the OPA177 maintains accuracy.
OPA177 performance gradeouts are available. Pack-
aging options include 8-pin plastic DIP
and SO-8 surface-mount packages.
+In ^500Ω
3
25Ω
V_O
6
30Ω
–In ^500Ω
2
V–
4
20µA
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©_{1990 Burr-Brown Corporation}
PDS-1081E
Printed in U.S.A. August, 1997