Scope
This document is valid for all TLE4997 variants and derivates. It gives a detailed description of the configuration and calibration procedure, which is recommended to configure the TLE4997 for optimum accuracy in a sensing application.
TLE4997 Signal Processing
The TLE4997 uses a fully digital signal processing concept. Analog values from the Hall probe are directly converted to raw digital signals by the Hall ADC and then compensated and processed in the digital signal processing unit (DSP) using configuration parameters stored in the EEPROM and the temperature data acquired by an integrated temperature sensor. A configurable second-order temperature polynomial is implemented to compensate the thermal reduction of the remanent magnetic flux of a permanent magnet used in a position sensing application. Additionally, an application-specific output characteristic can be set by configuring the EEPROM parameters of Gain and Offset.