Modelling op amps from Datasheet in Qspice


Can we all contribute to develop a workflow for modelling an op amp from datasheet parameters in Qspice? I am asking this, because most of the vendor spice models are developed in TINA or Pspice or LTspice which is having issues with QSPICE.


I see a distinct lack of enthusiasm for this enterprise. I think I know the reason, but I’m curious to know if there might be more than one.

You should check out this:

It makes Rail to Rail Op-Amp modeling a solved problem.



Hi Mike,

Thanks for the explanation.
But in the Qspice Op amp model, where we can add output impedance vs frequency?

I believe this is an important parameter for stability analysis.


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i have same problem thanks for solved the problem