Differential amplification circuit

Details Differential amplification circuit Differential amplification circuit

2008-10-09

2010-12-28

Mottola, Steven J (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including differential amplifier

Reexamination Certificate

active

07859339

ABSTRACT:
A differential amplification circuit is constituted of a differential transistor pair including a pair of n-channel MOS transistors whose sources are connected together, a constant current source circuit which is connected to the sources of the differential transistor pair, a current-mirror load circuit including a pair of p-channel MOS transistors whose gates are connected together, and a bias generation circuit which generates a gate bias voltage and a drain bias voltage applied to the current-mirror load circuit in such a way that the same potential is set to both the drains of the p-channel MOS transistors. Thus, it is possible to reduce the input offset voltage without reducing the margin of operation voltage and without increasing the overall chip size.

REFERENCES:
patent: 4334196 (1982-06-01), Schade, Jr.
patent: 2005/0140442 (2005-06-01), Tan
patent: 2005/0264347 (2005-12-01), Gyohten et al.
patent: 62-104305 (1987-05-01), None
patent: 01-086309 (1989-06-01), None
patent: 03-169107 (1991-07-01), None
patent: 05-014075 (1993-01-01), None
patent: 2005-340337 (2005-12-01), None

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4157154