Light receiving amplification circuit

Details Light receiving amplification circuit Light receiving amplification circuit

2007-07-17

2007-07-17

Choe, Henry (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including atomic particle or radiant energy impinging on a...

C250S2140AG

Reexamination Certificate

active

11266323

ABSTRACT:
A light receiving amplification circuit according to the present invention includes: a light receiving element; an amplification circuit which amplifies a photoelectric current generated by the light receiving element and outputs from an amplification stage for external output and a plurality of amplification stages for feedback; an operating current source set in each of the amplification stages which supplies an operating current to the corresponding amplification stages; a gain selection switch set in the respective plurality of amplification stages for feedback, which interrupts the operating current between the corresponding amplification stage and the operating current source; and a gain resistor set in the respective plurality of amplification stages for feedback and connected between the operating current side of the corresponding gain selection switch and an input of the amplification circuit.

REFERENCES:
patent: 6833762 (2004-12-01), Seetharaman et al.
patent: 6849845 (2005-02-01), Lauffenberger et al.
patent: 6933786 (2005-08-01), Mohandas et al.
patent: 3142214 (2000-12-01), None
English Language Abstract of JP 3142214, Nov. 1996.

Affiliated with

Also associated with

Rating

Light receiving amplification circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Light receiving amplification circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Light receiving amplification circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3727565