I need a way to vary a dc voltage across Monte Carlo runs. I am open to doing this with a custom component or with a design variable controlling an analogLib vdc component. My attempts to do this with a design variable are detailed below: I first found a helpful post from this forum Monte Carlo Design Variables? I attempted to follow the steps to create an analogLib vdc component whose voltage would vary across MC runs. Using the schematic below I set the DC voltage to the design variable "MYVDD". I launched ADE assembler and created a dc analysis. The only output of the analysis is the DC value of the node "vout". I then created a .scs file to detail the statistical properties of that variable. Based on this thread How to add mismatch to Monte Carlo design variables? I made some modifications to the original code for two reasons: I want the voltage to vary across Monte Carlo, not corners I wanted to use a gaussian distribution This is the contents of the .scs file: statistics { mismatch { vary MYVDD dist=gauss std=5 } } I have included this file by going to ADE Explorer, then to Setup > Model Libraries. Unfortunately, when I run a monte carlo simulation I do not see any change in this DC voltage. Am I missing a step when defining the statistical parameters of the design variable? Does anyone have experience making a DC voltage vary across Monte Carlo?
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