Reduction of comparator power requirement in a switched capacito

Details Reduction of comparator power requirement in a switched capacito Reduction of comparator power requirement in a switched capacito

1998-01-22

2000-04-25

Williams, Howard L.

Coded data generation or conversion

Analog to or from digital conversion

Digital to analog conversion

341172, H03M 112

Patent

active

060549459

ABSTRACT:
This application relates to analog to digital converters, particularly AD convertors of the successive approximation type, and to the reduction of power consumption and/or the size of active devices used in these converters. In particular, an analog to digital converter is disclosed in which an array of switched capacitors is decoupled from a comparator. Preferably, this decoupling is achieved using a small capacitor.

REFERENCES:
patent: 4922252 (1990-05-01), Draxelmayr
patent: 4999633 (1991-03-01), Draxelmayr
patent: 5367302 (1994-11-01), Kalthoff et al.
patent: 5581252 (1996-12-01), Thomas
patent: 5646622 (1997-07-01), Kuttner

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