For Intrinsic cap calculation, what should be the time interval for integration of current

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vasaroopak

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For Intrinsic cap calculation what should be time interval for integration of current

Hi All,


I am trying to get VDD cap of SRAM memory macro. I am ramping VDD by 50mv in a specific time interval and then integrating the I(VDD) for the same time interval.


For different time intervals like 50n, 2n, 2p 0.002p I am getting different values of cap.


So the question is How should I decide the time interval ??


Thanks
 

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