DSP, Micros & Memory


High-precision, linear 3D Hall-effect sensor

23 November 2022 DSP, Micros & Memory

The TMAG5173-Q1 from Texas Instruments is a low-power linear 3D Hall-effect sensor designed for a wide range of automotive applications. This device integrates three independent Hall-effect sensors in the X, Y, and Z axes. A precision analog signal-chain along with an integrated 12-bit ADC digitises the measured analog magnetic field values.

The I2C interface, while supporting multiple operating VCC ranges, ensures seamless data communication with low-voltage microcontrollers. The device has an integrated temperature sensor available for multiple system functions, such as thermal budget check or temperature compensation calculation for a given magnetic field.

An integrated angle calculation engine provides full 360° angular position information for both on-axis and off-axis angle measurement topologies. The angle calculation is performed using two user-selected magnetic axes. The device features magnetic gain and offset correction to mitigate the impact of system mechanical error sources.


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