PSpice User Guide

PSpice User Guide

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PSpice User Guide Things you need to know October 2019 32 Product Version 17.4-2019 © 1999-2019 All Rights Reserved. What is PSpice? PSpice 1 is a simulation program that models the behavior of a circuit containing any mix of analog and digital devices. Because the analog and digital simulation algorithms are built into the same program, PSpice simulates mixed-signal circuits with no performance degradation because of tightly coupled feedback loops between the analog and digital sections. Used with design entry tools 2 such as OrCAD Capture or Design Entry HDL for design entry, you can think of PSpice as a software-based breadboard of your circuit that you can use to test and refine your design before ever touching a piece of hardware. Run basic and advanced analyses PSpice can perform: ■ DC, AC, and transient analyses, so you can test the response of your circuit to different inputs. ■ Parametric, Monte Carlo, and sensitivity/worst-case analyses, so you can see how your circuit's behavior varies with changing component values. ■ Digital worst-case timing analysis to help you find timing problems that occur with only certain combinations of slow and fast signal transmissions. Note: Digital worst-case timing analysis is not available in PSpice. The range of models built into PSpice A/D include not only those for resistors, inductors, capacitors, and bipolar transistors, but also these: ■ transmission line models, including delay, reflection, loss, dispersion, and crosstalk 1. Depending on the license available, you will access either PSpice or PSpice Simulator. 2. In this guide, design entry tool is used for both OrCAD Capture and Design Entry HDL. Any differences between the two tools is mentioned, if necessary.

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