And which kind of signals have you measured ?
Are your devices working in harsh industrial environement like this one:

http://www.geocities.com/vsurducan/micro/micro.htm

Harold, your devices look great, I've saw your site. Prity bad you don't
say nothing about how it works ( schematics, sample codes etc...)
Best regards,
Vasile

On Fri, 9 Nov 2001, Harold M Hallikainen wrote:

> On Fri, 9 Nov 2001 14:35:14 +0200 Vasile Surducan <vasile@L30.ITIM-CJ.RO>
> writes:
> > Datasheet say 10K. But reality show you need to minimize the ac noise
> > impedance by adding a capacitor near AD input and analogic ground.
> > Value must be set accordingly input signal variation and maximum
> > delay
> > ( Rpot x C ) you must have it.
> > Vasile
> >
>
>         Why? I've got lots of stuff with a 10K pot driving the A/D input
> directly with no capacitor and get no jitter in the A/D output. If you
> have a reasonable PCB layout (good ground plane), it seems this capacitor
> is just wasted money. And, if you do external multiplexing, slows
> everything down.
>
>
> Harold
>
>
>
> FCC Rules Online at http://hallikainen.com/FccRules
> Lighting control for theatre and television at http://www.dovesystems.com
>
> ________________________________________________________________
> GET INTERNET ACCESS FROM JUNO!
> Juno offers FREE or PREMIUM Internet access for less!
> Join Juno today!  For your FREE software, visit:
> http://dl.www.juno.com/get/web/.
>
> --
> http://www.piclist.com hint: The list server can filter out subtopics
> (like ads or off topics) for you. See http://www.piclist.com/#topics
>
>

--
http://www.piclist.com hint: To leave the PICList
mailto:piclist-unsubscribe-request@mitvma.mit.edu