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Subject: Re: Series capacitor limitations for non-polar application

Date: 06/30/00 at 1:51 PM
Posted by: John Dunn - Consultant
E-mail: ambertec@ieee.org
Message Posted:

In Reply to: Series capacitor limitations for non-polar application posted by John on 06/30/00 at 12:23 PM:

Hi, John.

To make an integrator, you don't want to use tantalum capacitors at all because you need capacitors with low dielectric absorption properties. I suggest that you look into polypropylene capacitors instead.

Some years ago, Bob Pease of National Semiconductor wrote a whole treatise about this. Polypropylene came in as pretty good from the dielectric absorption standpoint and capacitances in the range you require are easily available.

A reprint of his article might be available.

Good luck.

John Dunn - President
Ambertec, Inc.
ambertec@ieee.org


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