Electronic sample-and-hold circuit

摘要

The sample-and-hold circuit according to the invention has for the cyclical switching-over from a sampling phase to a holding phase at least one switch, the inputs and outputs of which are kept in the holding phase at a holding voltage, which is applied to the holding capacitor. As a result, when switching over, disturbing charge-reversal currents are avoided for example and, in particular, a fast and highly accurate A/D conversion is achieved.