1 Features
• Low offset voltage: 25 μV (max)
• Low offset voltage drift: 0.3 μV/°C (max)
• High open-loop gain: 134 dB (min)
• Low quiescent current: 1.3 mA (typ)
• Low input bias ±2 nA (max)
• Wide supply voltage range: 6 V to 36 V
• Replaces industry-standard op amps: OP-07,
OP-77, OP-177, AD707, and more
• For improved performance with ±40-V overvoltage
protection, see the OPA206

2 Applications
• Analog input module
• Data acquisition (DAQ)
• Battery test
• Lab and field instrumentation
• Temperature transmitter

3 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. High performance and low
cost make these devices an excellent choice for a
wide range of precision instrumentation.
The low quiescent current of the OPA177
dramatically reduces warm-up drift and errors due to
thermoelectric effects in input interconnections. The
OPA177 provides an effective alternative to chopperstabilized
amplifiers. The low noise of the OPA177
helps maintain maximum signal integrity.
OPA177 performance grade-outs are available.
Packaging options include 8-pin plastic DIP and SO-8
surface-mount packages.