Circuit for generating a reference voltage

Details Circuit for generating a reference voltage Circuit for generating a reference voltage

2006-05-16

2006-05-16

Zweizig, Jeffrey (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

With specific source of supply or bias voltage

C327S328000

Reexamination Certificate

active

07046079

ABSTRACT:
A circuit for generating a reference voltage of an image sensor is provided. The circuit comprises a signal differential amplifier, a gain amplifier, a source follower and a clamp circuit. The signal differential amplifier is adapted for receiving and comparing a bias voltage and the reference voltage, and outputting a first voltage according to a comparison result. The gain amplifier is coupled to the signal differential amplifier, and is adapted for receiving the first voltage and outputting a second voltage. The source follower, coupled to the gain amplifier, and is adapted for receiving the second voltage and outputting the reference voltage. The clamp circuit is coupled to the source follower, and is adapted for receiving the reference voltage and limiting the reference voltage to below a clamp voltage.

REFERENCES:
patent: 4804865 (1989-02-01), Clark, II
patent: 5672962 (1997-09-01), Sweeney
patent: 5945821 (1999-08-01), Sakurai et al.
patent: 6060945 (2000-05-01), Tsay
patent: 6249174 (2001-06-01), Tsunezawa
patent: 6255886 (2001-07-01), Manning
patent: 6333642 (2001-12-01), Kurisu
patent: 6501303 (2002-12-01), Suyama
patent: 6501467 (2002-12-01), Miyazaki
patent: 6774712 (2004-08-01), Rhee et al.
patent: 6897716 (2005-05-01), Miyazaki
patent: 2003/0146991 (2003-08-01), Barna et al.
patent: 2004/0041927 (2004-03-01), Cho et al.
patent: 2004/0222351 (2004-11-01), Rossi

Affiliated with

Also associated with

Rating

Circuit for generating a reference voltage does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Circuit for generating a reference voltage, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Circuit for generating a reference voltage will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3562967