Analog Filter Design Toolbox

GUI to design and simulate active (opamp) LP and HP Bessel, Butter, Cheby, and Elliptic filters.
24.7K Downloads
Updated 12 Sep 2012

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Analog Filter Design (AFD) Toolbox allows the user to design, analyze, and simulate active analog filters easily in a graphical (GUI) environment. It was developed at MIT and is currently used in several universities to teach signal processing concepts. It can be used to build Butterworth, Bessel, Chebychev I and II, and elliptic filters. It can display time and frequency responses, pole/zero plots, transfer functions, circuit diagrams, and provides the ability to simulate filtering of user-supplied and standard data types (e.g. sinusoidal, squarewaves, EKG data).

To use, type AFD from the command prompt. The toolbox includes a comprehensive user's manual.

It has been tested to work up to Matlab R2011b, and likely will work beyond that.

Cite As

James Squire (2024). Analog Filter Design Toolbox (https://www.mathworks.com/matlabcentral/fileexchange/9458-analog-filter-design-toolbox), MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R2012b
Compatible with any release
Platform Compatibility
Windows macOS Linux

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Version Published Release Notes
1.2.0.0

Updated to include an App file for R2012b

1.1.0.0

This version fixes compatibility with R2011b.

1.0.0.0