Am Freitag, 23. November 2007 13:48 schrieb Rob Conway:
>
> Isolated is probably the wrong word, as the neg of all inputs is tied to
> the neg of the 1wire supply.
>
No, I really asked about the ground potential. If there is a connector between 
the DS2450 GND pin and the input's GND, it's likely that connector causes the 
0.3V voltage drop.

Kind regards

        Jan
-- 
A bug in the code is worth two in the documentation.

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