Hi Use the same idea with analogue swiches. fernando -----Original Message----- From: Andy Kunz To: PICLIST@MITVMA.MIT.EDU Date: Quinta-feira, 28 de Outubro de 1999 21:00 Subject: Re: [PIC] Measuring Analog Voltages w/o Sharing Grounds >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 >================================================================== >