Linear programmable switch-capacitance gain amplifier

Details Linear programmable switch-capacitance gain amplifier Linear programmable switch-capacitance gain amplifier

2008-01-23

2009-12-29

Mottola, Steven J (Department: 2817)

Amplifiers

With periodic switching input-output

C330S086000

Reexamination Certificate

active

07639074

ABSTRACT:
A linear programmable switch-capacitance gain amplifier (PGA) is described. The PGA divides the dB-gain curve into several parts by the concept of piece-wise linearity, and then simultaneously executes the dB-linear gain adjustment of MSB and the LSB at the same gain stage. Present invention achieves the PGA dB-linearity by setting up every capacitance of the sampling capacitor array and the holding capacitor array, then arranging the sampling capacitor array and the holding capacitor array by coordinating the switching of the capacitor switches.

REFERENCES:
patent: 7276962 (2007-10-01), Tomasi

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