I created a new program to help design an antialize filter with
the following qualities:

Fc = 2Hz
Type: Butterworth
N=8
LPF
4 stages
overall Unity gain
OP amp of choice is Bipolar OP177GPZ
can be found at JAMECO
you might find equivalents in your scrap box.

You should be familiar with filters
or do not try building it unless
this is how you learn.

I have constructed previously a 10HZ
filter which seems to be OK.
Been using it a long time now.

To get good results values must be near those indicated.

I have not yet built one myself from this program.

But will in the future.

Download the AS IS freeware and try it from
my site:

www.amaseistagva.com/index.html
or
amaseistagva.com

would like to hear ideas from you regarding this.

It uses the Euler iterative method to
determine the various values as related to
highest resistor desired.

Source code included.

Rename the PAS file to EXE
then
execute to extract contents.

Not responsible for spelling errors
since that's "Normal" for myself
and known by me to cause no harm.
Just think phonetically.

Regards,
geoff
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