Charge recycling amplifier for a high dynamic range CMOS imager

Details Charge recycling amplifier for a high dynamic range CMOS imager Charge recycling amplifier for a high dynamic range CMOS imager

2011-04-05

2011-04-05

Le, Dinh T. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific signal discriminating without subsequent control

By phase

C330S009000

Reexamination Certificate

active

07919992

ABSTRACT:
A high dynamic range amplifier circuit for amplifying pixel signals of an imager device is disclosed. The amplifier circuit uses a read-out scheme based on a charge recycling approach, where a pixel signal is first amplified with a low gain during a first amplification phase T1, and then the amplifier output is immediately recycled and the pixel signal amplified with a higher gain during a second amplification phase T2.

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