The DIO20921ST5 from Dioo Microcircuits is a Power Operational Amplifier with Supply Voltage 1.8 to 5.5 V, Input Offset Voltage ±5 mV, Input Bias Current 1 pA, Quiescent Current 4 uA, Input Offset Current 1 pA. Tags: Surface Mount, Low Power Op Amp. More details for DIO20921ST5 can be seen below.