
Leveraging Silicon Labs' proven CMOS design techniques, the Si721x family incorporates digital signal processing to provide precise compensation for temperature and offset drift. Compared with existing Hall-effect sensors, the Si721x family offers industry-leading sensitivity and low noise, which enables use with larger air gaps and smaller magnets.
For automotive applications, the Si720x family is AEC-Q100 qualified. In the simplest case, the Si721x devices are offered in a 3 pin package with power, ground, and a single output pin that is signal corresponding to the magnetic field in analog, PWM, or SENT format.
The Si721x devices are also offered in a 5 pin SOT23 and 8 pin DFN packages where the additional pins can be used for sleep mode (DIS) or to activate an on-chip coil for built in self-test (BISTb).

