Texas Instruments TMAG5170 is a high-precision linear 3D Hall effect sensor designed for a wide range of industrial and personal electronics applications. A high degree of integration provides flexibility and accuracy for a variety of position sensing systems. The device has three independent Hall sensors on the X, Y, and Z axes. The precision signal chain and integrated 12-bit ADC enable high precision and low drift magnetic field measurements while supporting sampling rates up to 20 ksps. On-chip temperature sensor data can be used for system-level drift compensation.

     The Integrated Angle Computing Engine (CORDIC) provides complete 360° angular position information for on-axis and off-axis angular measurement topologies. The Angle calculation is performed using two user-selected magnetic axes. The device has magnetic gain and offset correction functions, which can reduce the influence of mechanical error sources. The TMAG5170 can be configured through the Serial Peripheral Interface (SPI) to achieve any combination of magnetic axis and temperature measurement. There are multiple sensor conversion schemes and SPI reads frames to optimize throughput and accuracy. Dedicated ALERT pins can act as system interrupts during low-power wake and sleep modes and can be used by microcontrollers to trigger new sensor conversions.

     The TMAG5170 provides a variety of diagnostic capabilities to detect and report system - and device-level failures. SPI communication has user-enabled cyclic redundancy checks to enhance data integrity. The device is offered in two different versions to support a wide magnetic field range from ±25 mT to ±300 mT. The ambient temperature range of the sensor is -40°C to +150°C