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Simulators >> Circuit Simulators >> Monte Carlo "sensitivity" analysis, comparator offset
https://designers-guide.org/forum/YaBB.pl?num=1256592796

Message started by jiesteve on Oct 26^th, 2009, 2:33pm

Title: Monte Carlo "sensitivity" analysis, comparator offset
Post by jiesteve on Oct 26^th, 2009, 2:33pm

I am simulating comparator DC offset using Monte Carlo analysis in Eldo. Is there a way to do a sort of "sensitivity" analysis so that eldo can point me to the devices that contribute the most to the offset ? That way, I can pinpoint those devices and upsize them to get the most bang for the buck...

Thanks in advance

Title: Re: Monte Carlo "sensitivity" analysis, comparator offset
Post by BackerShu on Dec 3^rd, 2009, 4:20am

I also want to measure the DC offset of a compatator.

A method mentioned in this paper could sovle the problem.
http://www.designers-guide.org/Analysis/

I've read through the paper and think that the method will work. Unfortunately, by now, I haven't figured out how to save the MonteCarlo simulation results into a file.

Hope some experts helps us out! By the way, I use spectre to do the MC simulation and use Matlab to do the post-processing.

Thanks in advance.

Title: Re: Monte Carlo "sensitivity" analysis, comparator offset
Post by Dipankar on Dec 3^rd, 2009, 6:52am

BackerShu wrote on Dec 3^rd, 2009, 4:20am:

Hi ,

There is one tool out there - SOLIDO VARIATION DESIGNER. Itegrated with Virtuoso, can work with HSPICE netlist too. They basically hack your simulator engine to run your desired MC simulation/ corner simulation. What is extra is all kind of post processing, backannotation of any particular result to ADE, sensitivity analysis and so on.