ANALOG/DIGITAL CONVERTER AND METHOD FOR CONVERTING AN ANALOG INPUT SIGNAL INTO A DIGITAL OUTPUT SIGNAL

摘要

An analog-to-digital converter for successively and approximately converting an analog input signal into a digital output signal includes at least one comparator having a linear input module and an output module. The analog input signal is compared with a compare signal supplied by a digital-to-analog converter and supplies a comparator output signal for adjusting a clocked successive approximation register. The digital value temporarily stored in the successive approximation register is converted into the analog compare signal by the digital-to-analog converter. The inventive converter also includes an acceleration circuit supplying a reversible clock signal to the cocked successive approximation register according to at least one overload detector signal that detects overload of an appurtenant linear input module in the comparator.