ACS70310

ACS70310 and ACS70311 Very High Precision, Programmable Linear Hall-Effect Sensor IC with Reverse Battery Protection and High-Bandwidth (240 kHz) Analog Output for Core-Based Current Sensing FEATURES AND BENEFITS Factory-programmed segmented linear temperature compensation (TC) provides ultralow thermal drift □ Sensitivity Error ±1% □ Offset Error ±5 mV On-board supply regulator with reverse-battery protection provides high immunity to Electrical Overstress (EOS) Very fast response time (2 µs) High operating bandwidth: DC to 240 kHz AEC-Q100 Grade 0, automotive qualified Customer-programmable, high-resolution offset, and sensitivity trim Extremely low noise and high resolution achieved via proprietary Hall element and low-noise amplifier circuits Continued on next page... DESCRIPTION The ACS70311 offers additional features than the ACS70310 and is recommended for new designs. The Allegro ACS70310/1 IC incorporates a Hall element with BiCMOS integrated circuitry to provide a fully monolithic linear current sensor IC. The IC is sensitive to magnetic flux density orthogonal to the IC package surface and the output is an analog voltage proportional to the applied flux density. The ACS70310/1 is designed to be used in conjunction with a ferromagnetic core to provide highly accurate current sensing. The gain and offset drift over temperature is factory-programmed at Allegro and delivers a solution with ±1% sensitivity error and ±5 mV offset error from 25°C to 150°C....