Filter Wiz Lite is a free active filter designer
- first released May 2011.
Filter Wiz Lite is the best choice when the filter specifications do not require the sophistication and advanced capabilities of Filter Wiz PRO.
The application is significantly superior to other free desktop and online calculators.
user-friendly interface- allows instant access to all completed phases of the filter design, and presents information and choices with clarity and ease of use
lowpass, highpass, bandpass, bandstop filter types- rapidly design order 1 to 10 active filter.
new Antialiasing Filter design- design an antialiasing lowpass filter for A/D conversion
5 Approximations available
Butterworth Chebyshev Inverse Chebyshev Elliptic Bessel
Graphic displays include
Gain (dB or V/V) Phase Group Delay Step Response Impulse Response Pole-Zero Diagram
depending on filter type, topologies may include:
Sallen-Key Multiple Feedback (MFB) Fliege State-Variable (KHN) Akerberg-Mossberg Friend's Single Amplifier Biquad (SAB) Boctor
export design as eSketch file- allows designer to optionally take advantage of Schematica's eSketch simulator for further analysis, without having to redraw schematic.
new Op Amp selector and Slew Rate Calculator tools- find suitable op amp families by sorting on GBW, slew rate or quiescent supply current. Schematica's Resistor Color Coder also included.
"Strategy" help windows- view help topics appropriate to each design phase, accessible through "Strategy" buttons. All help topics are also available through a standard help file
Click on any image to enlarge...
Main window - select the active filter type (low pass, high pass, band pass, band stop or A/D antialias)
Specifications - enter the frequency and attenuation characteristics of the desired filter
Approximations - select an approximation to the ideal filter specification, using the graphical filter responses for comparison
Select Topologies - select the actual circuits that will implement each stage. A number of indicators and graphs aid in the choice of circuits
Calculate Values - the resistor and capacitor values are automatically calculated. Capacitor values can be scaled up or down, with resistor values being altered accordingly
Response Graphs - view the simulated response curves (voltage, phase, delay) for each stage and for the whole filter. A design can be exported to eSketch.
Please download Filter Wiz Lite to view the many design windows and aids.
Comparison of Filter Wiz Lite and Filter Wiz PRO:
|Filter Wiz software||Lite||PRO|
|Total Circuit Topologies||32||79|
|Antialiasing lowpass filter|
|Export to eSketch file|
|E-Series resistor substitution|
|Low-Q (MCP) Approximations|
|User-defined filter stages|
|User-configurable pole-zero pairing|
|User-configurable stage cascading|
|Monte Carlo analysis|
|Temperature Effect analysis|
|Input impedance vs frequency|
|Bill of Materials|
|Quality Factor vs Order Diagram|
Filter Wiz Lite version 1.26 download [June 21, 2013]
Filter Wiz Lite active filter designer is free.
Compatible with Windows 7, Vista, XP, 2K
EXE setup file:
Zipped setup file:
Please report any downloading problems to firstname.lastname@example.org.