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Si7214 Datasheet Field Output Hall Effect Magnetic Position Sensors

Manufacturer: Silicon Laboratories

Overview: Si721x Field Output Hall Effect Magnetic Position Sensors Data Sheet The Si7211/2/3/4/5/6/7 family of Hall-effect sensors from Silicon Labs bines a chopper-stabilized Hall element with a low-noise analog amplifier, 13-bit analog to digital converter. After A/D conversion the magnetic field data is available in analog. PWM or SENT format (depending on the part number). Leveraging Silicon Labs' proven CMOS design techniques, the Si721x family incorporates digital signal processing to provide precise pensation for temperature and offset drift. pared 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. In the simplest case, the Si721x devices are offered in a 3 pin SOT23 or TO92 packages 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 an 8 pin DFN(ing soon) 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).

This datasheet includes multiple variants, all published together in a single manufacturer document.

Key Features

  • High-sensitivity Hall-Effect Sensor.
  • Low noise output corresponding to magnetic field.
  • Integrated digital signal processing for temperature and offset drift compensation.
  • Low 50 nA Typical Sleep Current Consumption.
  • Configurable Sensitivity, Output Polarity and Sample Rate.
  • Sensitivity Drift < ±3% Over Temperature.
  • Wide power supply voltage.
  • 1.7 to 5.5 V.
  • 3.3 to 26.5 V.
  • Configurable output options.

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