Issue link: https://resources.pcb.cadence.com/i/1180526
PSpice User Guide Monte Carlo and sensitivity (worst-case) analyses October 2019 592 Product Version 17.4-2019 © 1999-2019 All Rights Reserved. should cause the collating function to be its worst (given by the HI or LO specification). Note: This procedure saves time by performing the minimum number of simulations required to make an educated guess at the parameter values that produce the worst results. It also has some limitations, which are described in the following sections. Outputs A summary of the sensitivity analysis is printed in the PSpice output file (.OUT). This summary shows the percent change in the collating function corresponding to a small change in each model parameter. If a .PROBE statement is included in the circuit file, then the results of the nominal and worst-case runs are saved for viewing in the Probe window. Caution: An important condition for correct worst-case analysis Worst-case analysis is not an optimization process; it does not search for the set of parameter values that result in the worst result. It assumes that the worst case occurs when each parameter has been either pushed to one of its limits or left at its nominal value as indicated by the sensitivity analysis. It shows the true worst-case results when the collating function is monotonic within all tolerance combinations. Otherwise, there is no guarantee. Usually you cannot be certain whether this condition is true, but insight into the operation of the circuit may alert you to possible anomalies.