Offset correction in operational amplifiers

Details Offset correction in operational amplifiers Offset correction in operational amplifiers

1979-10-31

1981-10-27

Mullins, James B.

Amplifiers

With periodic switching input-output

H03F 100

Patent

active

042976421

ABSTRACT:
A circuit which includes an operational amplifier (101) and includes switches (104, 106) for cancelling offset buildup in the amplifier in response to a circuit (110) which detects zero crossings of the input signal. Where the frequency of the input is higher than the frequency at which cancellation is necessary, circuit (110) may respond only to the zero crossing next following each of a regularly occurring series of timing pulses.

REFERENCES:
patent: 2919409 (1959-12-01), Williams
patent: 3139590 (1964-06-01), Brown
patent: 3448393 (1969-06-01), Rice
patent: 3617913 (1971-11-01), Schmidhauser
patent: 3654560 (1972-04-01), Cath et al.
patent: 3667055 (1972-05-01), Uchida
patent: 3988689 (1976-10-01), Ochi et al.
Electronics Review, "C-MOS Op Amp Offsets Errors with Continuous Sampling Technique" Jan. 18, 1979, pp. 39-40.

Affiliated with

Also associated with

Rating

Offset correction in operational amplifiers 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 correction in operational amplifiers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Offset correction in operational amplifiers will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-281782