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How to know a special run montecarlo simulation variance

loon

I have a question about the montecarlo simulation. 

I run a  100 runs montecarlo simulation, and find out that the run No. 80 has some 

bad simulation results. So I just run No. 80 montecarlo simulation and try to see 

why this run has problem. But I can not see the DC voltage, operating points,  and

component real parameters. How I can obtain these kinds of results? Thanks!

  • Thanks...so, is there a way to ensure both process and mismatch parameters remain the same?

  • Yes, don't change the topology of the circuit! As I said, process will always remain the same for a given run number and seed number, whereas mismatch will depend on the order of the devices in the circuit - because it has to produce random variations per subckt instance. If there are differences in the circuit, it will inevitably produce differences in the mismatch. If you're only changing a design variable, then you're safe.

    Regards,

    Andrew.

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