Switched capacitor circuits

Details Switched capacitor circuits Switched capacitor circuits

2006-04-25

2006-04-25

Jeanpierre, Peguy (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Analog to digital conversion

C341S144000, C341S150000, C341S155000

Reexamination Certificate

active

07034737

ABSTRACT:
A switched capacitor circuit includes an amplifier, a first switched capacitor network, and a second switched capacitor network. Either the first or second switched capacitor network is switched in a sampling configuration or a gain configuration according to connection states of the switches thereof. The amplifier includes a first transistor and a second transistor coupled to the first switched capacitor network, and a third transistor and a fourth transistor coupled to the second switched capacitor network. A first switch is coupled to a first connection point of the first and second transistors, and a second switch is coupled to a second connection point of the third and fourth transistors.

REFERENCES:
patent: 5467089 (1995-11-01), Draxelmayr
patent: 5574457 (1996-11-01), Garrity et al.
patent: 5594445 (1997-01-01), Ginetti
patent: 5892473 (1999-04-01), Shin
patent: 6097326 (2000-08-01), Opris et al.
patent: 6437720 (2002-08-01), Yin et al.
patent: 6661283 (2003-12-01), Lee
patent: 6967509 (2005-11-01), Rossi

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