The Si7201/2/3/4/5/6 family of Hall effect magnetic sensors and latches from Silicon Labs combines a chopper-stabilized Hall element with a low-noise analog amplifier, 13-bit analog-to-digital converter, and flexible comparator circuit. The Si720x family incorporates digital signal processing to provide precise compensation for temperature and offset drift. Compared with existing Hall effect sensors, the Si720x family provides a minimum field strength of <1.1 mT sensitivity, which enables use with larger air gaps and smaller magnets. For battery powered applications, the Si720x family offers very low power consumption to improve operating life. For automotive applications, the Si720x family is AEC-Q100 qualified. The Si720x devices are offered in 3-pin SOT23 and TO-92 packages.
Feature
- 400 nA current at 5 samples/second
- High sensitivity - Bop as low as 0.9 mT
- Second threshold for tamper detection
- Omnipolar Switch and Latch outputs available
- LV (1.71 - 5.5 V) and HV (3.3 - 26.5 V) supply ranges available
- Available in industry standard SOT23 and TO92 packages