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

2005-09-27

2009-08-25

Le, Dinh T. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

By periodic switching

C330S009000

Reexamination Certificate

active

07579885

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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