Method, apparatus and system providing configurable current...

Details Method, apparatus and system providing configurable current... Method, apparatus and system providing configurable current...

2007-01-02

2007-01-02

Le, Que T. (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

C250S208100

Reexamination Certificate

active

10892316

ABSTRACT:
A configurable current source for imager readout system that can be operated as a simple-current-source or as a cascode-current-source. The configurable current source can be operated in a simple-current-source mode during circumstances when a low power supply voltage or large output signal swing is needed to output a pixel signal. The configurable current source can also be operated in a cascode-current-source mode for reduced nonlinearity and column-wise fixed pattern noise when power from a power supply is not a limitation. The configurable current source provides design flexibility and pixel optimization for imager development.

REFERENCES:
patent: 5353252 (1994-10-01), Hashimoto

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