FilterPro – Discrete Filter Design 
Sometimes there is a need to make a Low-pass, High-pass, Band-pass, or Notch filter in discrete components. Filterpro gives the ability to make Bessel, Butterworth, or Chebychev filters with complete ease. This is very handy if you need a tool to configure discrete components with steep pole drop offs.
Download stand-alone here or full-install from the website.
Tags: band-pass, bessel, butterworth, chebychev, discrete, electrical engineering, filter, filterpro, high-pass, low-pass, notch, texas instruments, ti
