OPA4277UA/2K5 Description
The OPA4277UA/2K5 precision operational amplifier replaces the industry standard OP-177. The OPA4277UA/2K5 offers improved noise, wider output voltage swing, and is twice as fast with half the quiescent current. Features include ultra-low offset voltage and drift, low bias current, high common-mode rejection, and high power supply rejection. The OPA4277UA/2K5 operates from ±2-V to ±18-V supplies with excellent performance. Unlike most op amps that are specified at only one supply voltage, the OPA4277UA/2K5 is specified for real-world applications; a single limit applies over the ±5-V (10-V) to ±15-V (30-V) supply range.
OPA4277UA/2K5 Features
Ultra-low offset voltage: 10 μV
Ultra-low drift: ±0.1 μV/°C
High open-loop gain: 134 dB
High common-mode rejection: 140 dB
High power-supply rejection: 130 dB
Low bias current: 1-nA maximum
Wide supply range: ±2 V to ±18 V
Low quiescent current: 800 μA/amplifier
Single, dual, and quad versions
Replaces OP-07, OP-77, and OP-177
OPA4277UA/2K5 Applications
Analog input module
Weigh scale
Temperature transmitter
Pressure transmitter
Data acquisition (DAQ)
Lab and field instrumentation
Battery test
