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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 1748 views
• #### Tue, Oct 4 2011 8:09 AM

• amwygah
• Joined on Tue, Oct 4 2011
• Posts 12
• Points 165
How to set the senstype during sens analysis in ADE L?
 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/dPAnd, 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
• Joined on Fri, Apr 23 2010
• Santa Clara, CA
• Posts 40
• Points 640
Re: How to set the senstype during sens analysis in ADE L?
 Have you tried this line in your .cdsenv:spectre.opts    senstype    string    "normalized" or  adding this line in your .cdsinitenvSetVal("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?
 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
• Joined on Tue, Oct 4 2011
• Posts 12
• Points 165
Re: How to set the senstype during sens analysis in ADE L?
 thanks sharkFan.But your expression doesn't wok.
• Post Points: 5
• #### Wed, Oct 12 2011 7:35 AM

• amwygah
• Joined on Tue, Oct 4 2011
• Posts 12
• Points 165
Re: How to set the senstype during sens analysis in ADE L?
 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.