Parasitic compensated switched capacitor integrator
 A switched capacitor integrator for receiving a single input signal is compensated for parasitic capacitance errors with a minimum amount of circuitry. Although a single-ended amplifier is provided, a differential amplifier input is used which receives equal amounts of parasitic charge to effectively cancel charge errors. The size of the compensating capacitive circuitry may be reduced by making the input parasitic capacitance at one of the inputs proportionately larger so that the noise gain in both positive and negative signal paths remains substantially the same. 
Motorola, Inc.
G
G06G
inventional
Roger A. Alan L.
Whatley Westwick