ANALOG-DIGITAL-WANDLER-ANORDNUNG UND -VERFAHREN

摘要

A switching device (17) and a control device (31) with an evaluating circuit (33) are connected to the analog-digital converter (11). At predetermined times, the analog input signal is switched off and instead, a plurality of reference signals are connected. The output signals of the A/D converter, produced by the reference signals, are checked and, if necessary, the A/D converter is supplied with a correction function in the subsequent measuring period. Using this arrangement, time-related and temperature-dependent fault influences, in particular, can be eliminated.