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Sweep vth values

syafiq

Hello,

I would like to observe an output of ring oscillator (frequency) if let says I sweep with different values of vth for every instance in my circuit.

How can I do that? I got no idea until now. 

I am using IC614

Thanks

Syafiq

Parents
  • Andrew Beckett

    Yes, this is possible, but you'll need to modify your models - I have no idea how they are set up or what statistical variables have been added to the models or what they control.

    Look for a block in the model labelled "statistics" (see "spectre -h montecarlo" for details of the kind of structure you'd expect to see), and then see what parameters are being varied. Then look to see how these parameters are being used in the model definitions themselves and see what model parameters are being altered as a result.

    Regards,

    Andrew.

Reply
  • Andrew Beckett

    Yes, this is possible, but you'll need to modify your models - I have no idea how they are set up or what statistical variables have been added to the models or what they control.

    Look for a block in the model labelled "statistics" (see "spectre -h montecarlo" for details of the kind of structure you'd expect to see), and then see what parameters are being varied. Then look to see how these parameters are being used in the model definitions themselves and see what model parameters are being altered as a result.

    Regards,

    Andrew.

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