Am Freitag, 23. November 2007 11:28 schrieb Rob Conway:
> Just wondering if anybody else has used the DS2450 for a long time.  I am
> using one of these A/D's and I have found that after a while ~6-8 months
> all channels have a ~0.3 volt offset from zero.  ie all 4 channel readings
> go up by ~.3 volts.  Its like the chips internal reference voltage somehow
> gets screwed up.  It's happened twice now over the last 18 months.  The
> voltage being measured by the inputs are isolated voltages and I have
> placed a cap across the inputs.
>
Then, how about the ground potential? How did you power-cycle you device -- 
pulling and plugging a connector?

Kind regards

        Jan
-- 
Zero Defects, n.:
        The result of shutting down a production line.

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