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Sensitivity analysis in ADE XL

Jayanta

Hello

I have performed monte carlo simulation of a VCO circuit and checked the sensitivity analysis. There are around 50 process parameters, whose individual variance contributions are listed in a tabular form for some performance parameters(Phase noise and Frequency of oscillations of VCO). I want to explore a minimum subset out of these 50 process parameters combinedly which should explain the performance parameters(Phase noise and frequency of oscillation of VCO) with a good accuracy. Any idea/suggestions in this regard please. Also i need to know more about this sensitivity analysis in Monte carlo simulations. Any documentations on this would be highly helpful to me. 

Regards

Jayanta

  • Hi Jayanta,

    So by "sensitivity analysis" do you mean you looked at this UI? The Variance Contribution already ranks the contributions to each measurement:

    You can sort by contributor for each measurement column, and see the biggest contributors. This is in gpdk045 and the process random variables are not terribly usefully named, and so are just called random3, random1 etc (so don't read too much into that).

    It's not really clear to me what you mean by "I want to explore a minimum subset out of these 50 process parameters combinedly". It already tells you which of the process parameters have the biggest effect - so does this answer your question?

    More information can be found from the form above by clicking on Help and then searching for "Variance Contribution". Or there's this RAK (which is more focused on Mismatch contribution, but essentially similar): Mismatch Contribution

    Andrew

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