DESCRIPTION

· The Si7210 family of Hall effect magnetic sensors integrates a chopper-stabilized Hall element, low-noise analog amplifier, 13-bit ADC, and I2C interface.

· It features digital signal processing for precise temperature and offset drift compensation.

· Offers industry-leading sensitivity, enabling use with larger air gaps and smaller magnets.

· Designed for high output linearity and low noise, ensuring high measurement accuracy.

· Supports very low power consumption, ideal for battery-powered applications.

FEATURES

· High-sensitivity Hall effect sensor with adjustable full scale (±20mT and ±200mT).

· Integrated DSP for temperature and offset drift compensation.

· High-precision 13-bit signal path with output bandwidth up to 20 kHz.

· Sensitivity drift < ±5% over 0-70 °C.

· Digital I2C interface with four selectable addresses and optional digital alert output.

· Wide power supply voltage range from 1.7 to 5.5 V.

· Temperature sensor data available via I2C with ±1°C accuracy.

· Low sleep mode current consumption of 50 nA.

· Available in industry-standard SOT23-5 and 8-pin DFN packages.

APPLICATIONS

· Mechanical position sensing in consumer and industrial applications.

· Replacement of reed switches.

· Fluid level measurement.

· Speed sensing.

· Utility meters.

· Control knobs and selector switches.