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Design >> Analog Design >> offset cancellation of comparators/opamps
https://designers-guide.org/forum/YaBB.pl?num=1144336178

Message started by vivkr on Apr 6^th, 2006, 8:09am

Title: offset cancellation of comparators/opamps
Post by vivkr on Apr 6^th, 2006, 8:09am

Hi,

I know of a couple of different schemes for offset cancellation of comparators/opamps, but would be interested in
knowing if there is any paper or book where a review of various methods for offset cancellation is presented.

Thanks
Vivek

Title: Re: offset cancellation of comparators/opamps
Post by JJ on Apr 6^th, 2006, 3:21pm

You might want to check out the book "Principles of Data Conversion System" by Razavi. Hope it helps.

Title: Re: offset cancellation of comparators/opamps
Post by Paul on Apr 7^th, 2006, 1:10am

Vivek,

may I refer you to a previous post with various reading material suggestions:
http://www.designers-guide.org/Forum/YaBB.pl?num=1141147092/3#3

Do these cover your issues?

Paul

Title: Re: offset cancellation of comparators/opamps
Post by vivkr on Apr 11^th, 2006, 12:17am

Dear Paul, JJ,

Many thanks for your replies. They are all very useful.

Regards
Vivek

Title: Re: offset cancellation of comparators/opamps
Post by Pavel on Apr 15^th, 2006, 10:42am

Hello Vivek

There is good article that treats this topic "Circuit Techniques for Reducing the Effects of Op-Amp Imperfections: Autozeroing, Correlated Double Sampling, and Chopper Stabilization" by Christian Enz & Gabor Temes.

Hope it will help.

Good luck.

Pavel.