STEVAL-IFS005V1
Proximity detector based on TDA0161FP

This evaluation board is based on the TDA0161, a monolithic integrated circuit designed for metallic body detection by sensing variations in high-frequency eddy current losses. Using an externally-tuned circuit, the device acts as an oscillator. The output signal level is altered by an approaching metallic object.

The output signal is determined by supply current changes. Independently of the supply voltage, this current is high or low, depending on the proximity of a metallic object.