The OP2177ARZ is a very high precision Operational Amplifier featuring extremely low offset voltage and drift, low input bias current, low noise and low power consumption. Outputs are stable with capacitive loads of over 1000pF with no external compensation. Supply current is less than 500μA per amplifier at 30V. Internal 500R series resistors protect the inputs, allowing input signal levels several volts beyond either supply without phase reversal.