ACS712 Current Sensor

ACS712 is Fully Integrated, Hall Effect-Based Linear Current Sensor with 2.1 kVRMS Voltage Isolation and a Low-Resistance Current Conductor with features : Low-noise analog signal path ? Device bandwidth is set via the new FILTER pin ? 5 ?s output rise time in response to step input current ? 80 kHz bandwidth ? Total output error 1.5% at TA = 25°C ? Small footprint, low-profile SOIC8 package ? 1.2 m? internal conductor resistance ? 2.1 kVRMS minimum isolation voltage from pins 1-4 to pins 5-8 ? 5.0 V, single supply operation ? 66 to 185 mV/A output sensitivity ? Output voltage proportional to AC or DC currents ? Factory-trimmed for accuracy ? Extremely stable output offset voltage ? Nearly zero magnetic hysteresis ? Ratiometric output from supply voltage