Switched capacitor circuit with reduced common-mode variations

Details Switched capacitor circuit with reduced common-mode variations Switched capacitor circuit with reduced common-mode variations

2006-03-14

2006-03-14

Mottola, Steven J. (Department: 2817)

Amplifiers

With periodic switching input-output

C330S258000, C330S259000

Reexamination Certificate

active

07012463

ABSTRACT:
A circuit with a common-mode dual output includes a feedback circuit connected to alternate the states of the dual output between an average output level and a desired common-mode level. The difference between the average and desired levels is proportional to a signal offset level. An impedance matching circuit is connected to the feedback circuit to adjust the signal offset level.

REFERENCES:
patent: 5838200 (1998-11-01), Opris
patent: 6285311 (2001-09-01), Lewicki
patent: 6362682 (2002-03-01), Shulman
patent: 6400301 (2002-06-01), Kulhalli
patent: 6577184 (2003-06-01), Kwan
patent: 6750715 (2004-06-01), Allott et al.
David Johns and Ken Martin, Analog Integrated Circuit Design, 1997, pp. 287-291.

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