Reached an end of a rope here: How do you make a worst case simulation in PSpice (or even Monte Carlo for that matter) properly find the extremes for an opamp offset voltage and input bias current?
For example, for the opamp we have:
VOS: Offset voltage VOS_DIST: Distribution, I assume VOS_NTOL: What gets entered here? VOS_PTOL: ... and here?
If I enter 7mV or whatever for VOS and set the distributuion to flat the sim acts as if there was always +7mV. No variation. But we all know that it'll be +/-7mV. How can I make PSpice understand that? The manual appears to be silent about it and a web search doesn't even find expressions such as VOS_NTOL.
Same goes for input bias current except that there it's called IB, IB_DIST, IB_NTOL and IB_PTOL. Having to massage all these by hand gets old in a larger simulation.