Switched-capacitor, common-mode feedback circuit for a...

Details Switched-capacitor, common-mode feedback circuit for a... Switched-capacitor, common-mode feedback circuit for a...

2005-08-16

2005-08-16

Lam, Tuan T. (Department: 2816)

Amplifiers

With periodic switching input-output

C330S258000

Reexamination Certificate

active

06930545

ABSTRACT:
Provided is a switched capacitor feedback circuit including two or more input ports configured to receive a corresponding a number of input signals and at least one output port. The output port is configured to output an adjusting signal. The input signals includes a number of primary signals and two or more reference signals that are associated with a first timing phase of operation. The adjusting signal is produced based upon a comparison between the primary signals the reference signals. Also provided is a pair of active devices having gates coupled together and structured to receive the adjusting signal. The active devices are configured to provide a gain to the adjusting signal in accordance with a predetermined gain factor, and facilitate an adjustment to the number of primary signals based upon the gain during a second timing phase of operation.

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International Search Report issued Jul. 24, 2003 for Appln. No. PCT/US01/41576, 4 pages.

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