The BU7271G-TR from ROHM Semiconductor is a Power Operational Amplifier with Supply Voltage 1.8 to 5.5 V, Input Offset Voltage 1 to 8 mV, Input Bias Current 1 pA, Input Offset Current 1 pA, Output Current 2 to 8 mA. Tags: Surface Mount, Low Power Op Amp. More details for BU7271G-TR can be seen below.