A device for detecting an angular position of a rotating object comprises a sensor that provides a sensor output signal dependent at least on the angular position (φ) of the object, and an evaluation circuit that receives the sensor output signal and a trip threshold and provides a detection signal when the level of the sensor output signal crosses the trip threshold. The trip threshold has levels in a range of values in which the level of the sensor output signal varies rapidly as a function of the angular position of the object.