4 Butterworth types for analog filter design.

Calculates Butterworth response analog filters up to the 9th order

The following calculators are available:

-  Low pass filter calculator

-  High pass filter calculator

-  Band pass filter calculator

-  Band stop filter calculator

Define the following items in a selected filter type:

-  filter order

-  (Low Pass/ High pass/ Band pass/ Band reject) frequency

-  bandwidth

-  impedance of the filter.

After a click on 'Calculate' the components required for the filter response are calculated.