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Easy to use analog circuit simulation for
the professional circuit designer

5Spice provides Spice specific schematic entry, the ability to define and save an unlimited number of analyses, and integrated graphing of simulation results. Plus easy inclusion of Spice/PSpice® models from a user expandable library. The focus is on analog circuit analysis and design at the component level. Student level MOSFET IC design is also supported but not compatible with HSpice® model libraries.

December 2018
The business is closing and program registration has ended. You are welcome to use the limited feature download, however the more advanced program features are not available to new users.

>Registered 2.0 users should download version 2.70 now<

'Found 5spice and I love it. Without reading the first word of the instructions, within 1/2 to 1 hour I was simulating and plotting. You have written something really useful and I thank you for your efforts.' D.B., an experienced Spice user

'With your program I imported a model (op amp) from Analog Devices and had it in a simulation in 15 seconds. I could not do this in [competitor’s program] (and I tried) in a whole day!' B. Labitt

'I must say this is the best spice program I’ve ever used and I’ve been doing circuit analysis since the early 1960’s.' J. Gersbach more comments

Copyright © 2018 Richard P. Andresen

Note: PSpice is a registered trademark of Cadence Design Systems, Inc.

Getting Started

The quickest way to see if 5Spice is right for you is to read this page, then download the program and go.

After installing, look at the LINKS page for easy download of manufacturers’ Spice models, plus notes on problems with certain models.

Also links to 5Spice tutorials, other Spice related web sites, and an excellent book on modeling of SMPS.

Already tried LTSpice?

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You can copy the Analog Devices subcircuit file included with LTSpice to the 5Spice Library.

Questions about using 5Spice

Check out the FAQ page, the YouTube tutorials, and the program’s
main menu>Help>
Using 5Spice as a beginner.