The MCP603-E/ST from Microchip Technology is a Power Operational Amplifier with Supply Voltage 2.7 to 6 V, Input Offset Voltage -4.5 to 4.5 mV, Input Bias Current 0.000005 mA, Quiescent Current 230 to 325 µA, Input Offset Current -1 to 1 pA. Tags: Surface Mount, General Purpose Op Amp. More details for MCP603-E/ST can be seen below.