The ADA4891-1WARJZ-R7 from Analog Devices is a Power Operational Amplifier with Supply Voltage 2.7 to 5.5 V, Input Offset Voltage -16 to 16 mV, Input Bias Current -50 to 50 pA, Quiescent Current 3500 to 4400 µA, Input Offset Voltage Drift 6 µV/°C. Tags: Surface Mount, General Purpose Op Amp. More details for ADA4891-1WARJZ-R7 can be seen below.