analog - digital conversion device, the electronic device with an illuminance sensor device and the illuminance sensor device

摘要

An analog to digital conversion device has a plurality of, two, for example, analog to digital converters, and a reference charge quantity interchange section arranged and configured to interchange, among the plurality of analog to digital converters, reference quantities of electric charge (e.g., reference currents or reference capacitances) to be used therein during an analog to digital conversion period.