MOS switch that reduces clock feedthrough in a switched capacitor circuit

摘要

The accumulation of a small positive charge on the source of a MOS switch which occurs after the switch has been turned off due to the parasitic capacitance that exists between the gate and the source of the transistor, known as clock feedthrough, is reduced by utilizing a split-gate MOS transistor, and by continuously biasing one of the gates of the split-gate transistor.