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PSpice User Guide Simulation examples October 2019 130 Product Version 17.4-2019 © 1999-2019 All Rights Reserved. Performance analysis Performance analysis is an advanced feature in PSpice that you can use to compare the characteristics of a family of waveforms. Performance analysis uses the principle of search commands introduced earlier in this chapter to define functions that detect points on each curve in the family. After you define these functions, you can apply them to a family of waveforms and produce traces that are a function of the variable that changed within the family. This example shows how to use performance analysis to view the dependence of circuit characteristics on a swept parameter. In this case, the small signal bandwidth and gain of the clipper circuit are plotted against the swept input resistance value. To plot bandwidth vs. Rval using the performance analysis wizard 1. In Capture, open CLIPPER.OPJ. In Design Entry HDL, open CLIPPER.CPM. 2. From PSpice's Trace menu, choose Performance Analysis. The Performance Analysis dialog box appears with information about the currently loaded data and performance analysis in general. Note: The Performance Analysis menu item is only available if an analysis data file is available. In this case, the data from the parametric analysis of the previous example should still be open. 3. Click the Wizard button. At each step, the wizard provides information and guidelines. 4. Click the Next> button. 5. In the Choose a Measurement box, click Bandwidth, then click the Next> button. 6. Click in the Name of Trace to search text box and type V(Out).