Erik wrote :
Kat, I do not know if you are a maiden

Yes I am hon :o)

Thanks for the lead, I have placed a few on order <free samples> from maxim, I phoned the Perth Au distributor and nearly died, rough price is au$45 in qty's of 15 :o(

I think I will Isolate the ADC (uses spi to communicate) just 3 optos and my Uc can sit in relative saftey (so can my devboard, and PC)

Thanks for the help all :o)

Regards,

Kat.