Common mode rejection ratio trim circuit and methodology

Details Common mode rejection ratio trim circuit and methodology Common mode rejection ratio trim circuit and methodology

2006-09-21

2009-06-16

Pascal, Robert (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including differential amplifier

C330S253000

Reexamination Certificate

active

07548115

ABSTRACT:
An operational amplifier circuit includes an input differential circuit and a trim circuit for sensing the operational amplifier's input common mode voltage and generating an offset correction voltage in response thereto. The trim circuit reduces the amplifier's offset voltage dependence on input common mode voltage, and hence improves the common mode rejection ratio of the operational amplifier circuit.

REFERENCES:
patent: 4639683 (1987-01-01), Counts et al.
patent: 5418491 (1995-05-01), Bowers
patent: 5424677 (1995-06-01), Carson
patent: 5726597 (1998-03-01), Petty et al.
patent: 6420932 (2002-07-01), Casper
patent: 6636111 (2003-10-01), Gross et al.
patent: 6680627 (2004-01-01), Hughes
patent: 6756841 (2004-06-01), Jaussi et al.
patent: 6819170 (2004-11-01), Kindt
patent: 7193464 (2007-03-01), Wang et al.
patent: 7358809 (2008-04-01), Elder
patent: 2005/0134380 (2005-06-01), Nairn

Affiliated with

Also associated with

Rating

Common mode rejection ratio trim circuit and methodology does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Common mode rejection ratio trim circuit and methodology, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Common mode rejection ratio trim circuit and methodology will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4121312