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How to set amplifier model tolerance?

Zhengzhi Wang

I am trying to perform Monte Carlo simulation and worst-case simulation on a filter circuit.

The tolerances of resistors and capacitors can be modified.

But can the tolerances of core components such as amplifiers or other power chips also be set? If so, how can I set them?

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  • TechiEE12
    0

    You can define DEV tolerance for any part which has .model file. For R, L and C parts you can directly define the tolerance in property editor but for other parts like MOS, OP AMP which are having .model file you have to define in the model file. For example to define DEV tolerance, add DEV=5% after every model parameter it should work. 

    Hope this helps.

  • Zhengzhi Wang
    0 in reply to TechiEE12

    Thanks for your reply! Is there any tutorial or case study on this?

  • TechiEE12
    0 in reply to Zhengzhi Wang

    Here is a sample of the syntax to be added in model file.

    For more details you can refer to How to define parameter tolerance as function of L and W for MOSFET model? (cadence.com)

    Hope this helps. 

Reply
  • TechiEE12
    0 in reply to Zhengzhi Wang

    Here is a sample of the syntax to be added in model file.

    For more details you can refer to How to define parameter tolerance as function of L and W for MOSFET model? (cadence.com)

    Hope this helps. 

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