The Designer's Guide Community Forum
https://designers-guide.org/forum/YaBB.pl
Design >> Mixed-Signal Design >> How to simulate the "unlatched gain" of a dynamic comparator
https://designers-guide.org/forum/YaBB.pl?num=1620625344

Message started by wax and wane on May 9th, 2021, 10:42pm

Title: How to simulate the "unlatched gain" of a dynamic comparator
Post by wax and wane on May 9th, 2021, 10:42pm

Hi everybody,

I have read the paper "Comparator Metastability Analysis" from this Forum and try to test the probability of comparators make a wrong disicion.

https://designers-guide.org/analysis/metastability.pdf

In this paper, there is a definition that Aul is the comparator unlatched gain. But how to simulate the "unlatched gain" of the dynamic comparator like strong arm and double-tailes ?

I'm confused about the definition and the simulation way about the "unlatched gain",can you give me some advise or the simulation guide?

It's the first time I use this Forum. Thanks a lot!

Title: Re: How to simulate the "unlatched gain" of a dynamic comparator
Post by Horror Vacui on Jun 28th, 2021, 1:09am

Without consulting that paper (I've read it maybe 8 years ago...) I guess this is the analog gain when the dynamic latch is released from a reset state. Reset state here means when the gain stages are balanced to remove any voltage imbalance due to the previous decision. Therefore you should just measure the loop gain of the gain stage with an stb analysis.

The Designer's Guide Community Forum » Powered by YaBB 2.2.2!
YaBB © 2000-2008. All Rights Reserved.