SLiCAP: Symbolic Linear Circuit Analysis Program; symbolic SPICE

Our Symbolic Linear Circuit Analysis Program, is a free web application for designers of analog electronics.

Setting up design equations for specific circuit topologies is an important activity of a designer of analog circuits. However, in practice it can be tempting to avoid tedious symbolic analysis and take refuge in numerical simulations. Experienced designers might afford themselves such an approach, but those who are not familiar with the underlying mechanisms of the circuit's operation, might end up in 'trial and horror' and finally ... with a redesign.

Finding design equations, requires symbolic analysis. Nowadays, symbolic analysis is supported by many math-tools, but ... SLiCAP gives you something extra: it converts a SPICE-like netlist into a matrix equation and finds symbolic expressions for transfer functions.

SLiCAP is developed by Montagne as support tool for design workshops in the field of analog electronics.

SLiCAP: The tool that turns symbolic circuit analysis into fun!

SLiCAP is a symbolic circuit analysis program that shows network equations, transfer functions, pole-zero patterns, step response and impulse response, in a symbolic, numeric or graphic representation.

SLiCAP is an indispensable web application for designers of analog electronic circuits and for students.

SLiCAP uses the asymptotic-gain model for evaluation of negative feedback circuits.

SLiCAP, also: symbolic SPICE, accepts SPICE-like netlists and returns output files in text, TeX, HTML and XHTML format.

SLiCAP output formats

Read here about SLiCAP output formats, and check your browser compatibility!

SLiCAP uses Modified Nodal Analysis

Modified Nodal Analysis (xhtml) or Modified Nodal Analysis (PDF): Setting-up network equations for symbolic and numeric circuit analysis.

SLiCAP Nyquist plot

polar plot of the loopgain of a negative-feedback amplifier

Example of a polar plot of the loopgain of a negative-feedback voltage amplifier, generated by SLiCAP...more

Your own circuit

Input your SLiCAP netlist!

View SLiCAP output

XHTML formatted SLiCAP output!

Schematic Capture for SLiCAP with SIMetrix Intro!

You can generate SLiCAP netlists with SIMetrix Introduction. For this, download SIMetrix Introduction and the workshop environment, and follow the installation instructions.

SLiCAP version 3 released!

SLiCAP manual

SLiCAP manual in XHTML format.

SLiCAP manual in TeX format.

SLiCAP manual in HTML format.

SLiCAP manual in PDF format.

SLiCAP known issues

Please don't forget to read the SLiCAP known issues list.