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 How to set the senstype during sens analysis in ADE L?  

Last post Wed, Oct 12 2011 7:35 AM by amwygah. 4 replies.
Started by amwygah 04 Oct 2011 08:09 AM. Topic has 4 replies and 1718 views
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  • Tue, Oct 4 2011 8:09 AM

    • amwygah
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    How to set the senstype during sens analysis in ADE L? Reply

    hello,everybody:
    After I use the sensitivity analysis in ADE L, I print the sens result in the result box. Then, I found that the sensitivity result is given by

    S(F,P)=dF/dP rather than S(F,P)=P/F * dF/dP

    And, after I search it in many references, I find that the value of senstype would deside which formula will be used.
    But unfortunately, in sensitivity analysis ,defaultlly, the senstype=partial,which use the first formula.
    if you want to use the second formula, you need to spectify that senstype=normalized .


    But, I donot know where and how to change this value. Could anybody help me?

    • Post Points: 20
  • Wed, Oct 5 2011 8:44 AM

    • SharksFan
    • Top 200 Contributor
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    • Santa Clara, CA
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    Re: How to set the senstype during sens analysis in ADE L? Reply

    Have you tried this line in your .cdsenv:

    spectre.opts    senstype    string    "normalized"

    or  adding this line in your .cdsinit

    envSetVal("spectre.opts" "senstype" 'string "normalized")

    ?

    You can query your present value of these from the CIW by entering:

    envGetVal("spectre.opts" "senstype")

    Hope this helps

    • Post Points: 35
  • Wed, Oct 5 2011 9:07 AM

    Re: How to set the senstype during sens analysis in ADE L? Reply

    In the UI, it's under Simulation->Options->Analog (in IC5141 it's near the bottom, in IC61X it's on the Miscellaneous tab). It's not under the sens analysis as an option, because sens is actually a control statement rather than an analysis in spectre (so doesn't have any direct options - so it appears under "spectre -h options" rather than "spectre -h sens").

    Andrew.

    • Post Points: 20
  • Wed, Oct 12 2011 7:33 AM

    • amwygah
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    Re: How to set the senstype during sens analysis in ADE L? Reply

    thanks sharkFan.

    But your expression doesn't wok.

    • Post Points: 5
  • Wed, Oct 12 2011 7:35 AM

    • amwygah
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    Re: How to set the senstype during sens analysis in ADE L? Reply

    thanks Andrew.

    You are correct. Now the results is listed in the form of senstype = normalized.

    • Post Points: 5
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Started by amwygah at 04 Oct 2011 08:09 AM. Topic has 4 replies.