Switched capacitor

Details Switched capacitor Switched capacitor

1997-11-25

1999-09-28

Williams, Howard L.

Coded data generation or conversion

Analog to or from digital conversion

Analog to digital conversion

333173, 327454, H03M 100

Patent

active

059595655

ABSTRACT:
A switched capacitor includes two capacitors. During the charging period, the first capacitor is connected to an input potential and a first reference potential, and the second capacitor is connected to the input potential and a second reference potential. During the discharging period, those electrodes of the first and second capacitors which have been connected to the input potential are connected to a first and a second reference potential, respectively, and those which have been connected to the first and second reference potentials, respectively, are connected to an output terminal. The switched capacitor also has a circuit that is connected to the first and second reference potentials to produce an intermediate potential therebetween so that, before the charging period, the first capacitor is connected to the intermediate potential and the first reference potential and the second capacitor is connected to the intermediate potential and the second reference potential.

REFERENCES:
patent: 5351050 (1994-09-01), Thompson et al.
patent: 5574457 (1996-11-01), Garrity et al.
patent: 5638020 (1997-06-01), Koifman et al.
patent: 5699006 (1997-12-01), Zele et al.
patent: 5703589 (1997-12-01), Kalthoff et al.

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