Ratio-independent switched capacitor amplifiers and methods...

Details Ratio-independent switched capacitor amplifiers and methods... Ratio-independent switched capacitor amplifiers and methods...

2007-10-17

2009-12-08

Pascal, Robert (Department: 2817)

Amplifiers

With periodic switching input-output

Reexamination Certificate

active

07629838

ABSTRACT:
A ratio-independent switched capacitor amplifier includes a first sampling circuit configured to sample a first input voltage as a first sampling voltage and to double a level of the first sampling voltage during an interval in which the first input voltage is cut off; a second sampling circuit configured to sample a second input voltage as a second sampling voltage and to double a level of the second sampling voltage during an interval in which the second input voltage is cut off; and a differential amplifier circuit configured to output a difference between the first sampling voltage and the second sampling voltage.

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patent: 6853241 (2005-02-01), Fujimoto
patent: 7030804 (2006-04-01), Yoshioka et al.
patent: 7449923 (2008-11-01), Braswell et al.
patent: 09008604 (1997-01-01), None
patent: 2005-303427 (1997-10-01), None
patent: 2006-086981 (2006-03-01), None
patent: 1020060044441 (2006-05-01), None

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