Offset canceller for compensating for offset in signal output

Details Offset canceller for compensating for offset in signal output Offset canceller for compensating for offset in signal output

2008-09-09

2008-09-09

Pascal, Robert (Department: 2817)

Amplifiers

With periodic switching input-output

C330S253000, C330S260000, C327S307000

Reexamination Certificate

active

11528543

ABSTRACT:
An offset canceller outputs a signal during its offset compensating operation and compensates for the offset by capacitance or resistance devices connected externally to an operational amplifier. A driving circuit includes plural output circuits #1to #n+1 for outputting driving signals to plural output terminals #1to #n on one outputs and for outputting the driving signals on the other outputs coupled to corresponding plural output selectors #1to #n, which then select one of two signals output from two neighboring output circuits to transmit the selected signals to the output terminals. The output circuits #1to #n+1 have other outputs coupled to a decision circuit, which compares the signals to a reference voltage and outputs a decision signal representing the result of comparison at a predetermined timing. The output circuits execute the offset cancel operation responsive to the decision signal.

REFERENCES:
patent: 6118395 (2000-09-01), Kim
patent: 6323798 (2001-11-01), Abe
patent: 6448836 (2002-09-01), Kokubun et al.
patent: 6762643 (2004-07-01), Milanesi
patent: 6930529 (2005-08-01), Tobita
patent: 6946905 (2005-09-01), Kokubun et al.
patent: 7081792 (2006-07-01), Kasai et al.
patent: 2006/0244710 (2006-11-01), Iriguchi et al.

Affiliated with

Also associated with

Rating

Offset canceller for compensating for offset in signal output does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Offset canceller for compensating for offset in signal output, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Offset canceller for compensating for offset in signal output will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3940987