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https://designers-guide.org/forum/YaBB.pl Measurements >> RF Measurements >> Problem while extracting total noise of a MOS (Flicker+thermal) https://designers-guide.org/forum/YaBB.pl?num=1365737997 Message started by VINAY RAO on Apr 11th, 2013, 8:39pm |
Title: Problem while extracting total noise of a MOS (Flicker+thermal) Post by VINAY RAO on Apr 11th, 2013, 8:39pm Hello All, I have chosen a set up (which is attached) to get accurate values of MOS' noise level. I am using UMC 65nm and took resistance from Analoglib. I have disabled “Generate any noise” option in resistor which is chosen and hence only MOS' noise is EXPECTED. I need gate voltage PSD that is SVG and drain current noise PSD that is SID. I am facing two problems here. 1> When I am changing values of resistor, SID PSD's are getting scaled up/down. Why noise levels are getting changed when resistor values are changed though “Generate any noise” option is disabled. If this resistor still contributing any noise then how can I measure or which kind of set up would be the better alternative to get accurate MOS' noise PSDs? 2>How can I measure PSD of SVG in this case? Regards, Vinay Rao. |
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