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Electronics => Electronics => Topic started by: Ocelot on July 21, 2009, 06:41:58 PM

Title: Need help finding a 60Hz Notch Filter
Post by: Ocelot on July 21, 2009, 06:41:58 PM

Hey everyone,

I was wondering if anyone knew where I could buy a 50-60Hz notch filter IC. I've tried digikey and mouser and neither of them supply notch filters anymore.  =\ whats up with that?

Thanks.

Title: Re: Need help finding a 60Hz Notch Filter
Post by: imarcianoloco on October 25, 2010, 11:49:00 PM

If you can't find the IC sold anywhere you might consider making one yourself...  In the following link is a simple circuit using a 741 op-amp that filters out the 60Hz component in an input frequency reducing it by 3dB...  hope it is of help...

http://imarcianoloco.blogspot.com/2010/10/60-hz-notch-filter.html (http://imarcianoloco.blogspot.com/2010/10/60-hz-notch-filter.html)