Monte Carlo Analysis in LTspice: Gaussian or Uniform distribution for the tolerance of resistors?

Asked Feb 24 '22 at 17:36

Active Feb 24 '22 at 17:41

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I am running 1000 simulations in LTspice to do Monte Carlo Analysis of the output voltage signal on a circuit with 3% tolerance resistors.

Firstly, does LTspice assume the resistors' values are Gaussian distributed or uniformly distributed? How would I change that, if possible? Secondly, does it assume the tolerance are the extremes of the resistance value, or the standard deviation?

edited Feb 24 '22 at 17:41

Null

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asked Feb 24 '22 at 17:36

doumham

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Se [this](https://www.analog.com/en/technical-articles/how-to-model-statistical-tolerance-analysis.html). `mc()` is flat, you'll need `gauss()` for Gaussian. – a concerned citizen Feb 24 '22 at 17:59
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Thank you very much! that was helpful! – doumham Feb 24 '22 at 18:13

Monte Carlo Analysis in LTspice: Gaussian or Uniform distribution for the tolerance of resistors?

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