The ACS37030LLZATR-020B3 from Allegro MicroSystems is a Current Transducer with Output Voltage -0.5 to 0.5 V, Supply Voltage 3 to 3.6 V, Sensitivity 66 mV/A, Temperature Operating Range -40 to 150 Degree C, Input Current 20 to 30 mA. Tags: Surface Mount, DC Current Transducer. More details for ACS37030LLZATR-020B3 can be seen below.