I do have some components in my circuit that have an asymmetric tolerance (i.e. -15% to + 25%), I did enter these values on the POSTOL and NEGTOL fields of the property editor and left "TOLERANCE" empty, I also set "TOL_ON_OFF" to ON. However, when I run the Montecarlo Analysis I get a "WARNING(ORPSIM-15191): No Models had tolerances. MC. or .WCASE ignored
If i put values on the "TOLERANCE" fields, then the MC analysis works. So, it looks like Montecarlo only works for values on the "TOLERANCE" field and does not take into consideration values on the POSTOL and NEGTOL fields.
Is this correct?, is there a way for the MC analysis to consider different values of positive and negative tolerances? how can I do it ?
Thanks in advance
I am pretty certain that you would need PSpice Advanced Analysis enabled to support POSTOL and NEGTOL, in Monte Carlo. PSpice Designer Plus, or PSpice Studio licenses.
Well, within the Simulation Settings, I have checked the box "Enable PSpice AA support in Legacy" and it does not help.
BTW, Im just using the free version "PSPICE for TI", could this be a limitation ?
I cant find this info anywhere
Yes you are right, PSpice for TI does not support PSpice Advance Analysis.
You can always try the commercial version of PSpice available at https://downloads.cadence.com/ESDWeb/Welcome.eo To use advance analysis make sure you have the right set of license like PSpice Designer Plus or PSpice Studio licenses.