Electronic circuit arrangement for converting analog input signal into digital output signal in automotive industry, has charge subtraction device removing predetermined charge amount from capacitor in response to output signal

摘要

The arrangement has a sample and hold circuit (110) whose input side is connected with an input terminal (102) that delivers an analog input signal (Uanalog) to be converted. An analog-to digital converter (120) converts a signal level that exists at an output (112) of the sample-and-hold circuit into a digital output signal (Udigital). A charge subtraction device removes a predetermined charge amount from a sample and hold capacitor (Csh) in response to an output signal of a comparator (130) so that the signal level is smaller than a reference signal level (Uref). An independent claim is also included for a method for converting an analog input signal into a digital output signal.