At 12:22 PM 10/28/1999 -0500, you wrote:
>A simple technique requiring a capacitor and DPDT relay:
>
>Vx+ >----o | o-----> AtoD
>           |
>          +-)(-+
>              C |
>           +----+
>           |
>Vx- >----o | o-----> GND

I need to make up to 30 samples/sec.  That's a pretty nasty buzz for a relay.

I like the concept, though.

Other ideas?

Thanks.

Andy
==================================================================
 Eternity is only a heartbeat away - are you ready?  Ask me how!
------------------------------------------------------------------
andy@rc-hydros.com      http://www.rc-hydros.com     - Race Boats
andy@montanadesign.com  http://www.montanadesign.com - Electronics
==================================================================