Does anyone know if the A to D convertor on the 16C71x has a
true sample and hold on the input? Its not clear to me in the
documentation if the sampling switch remains closed during
conversion or if it opens during conversion. I see that the
sampling switch closes when the channel is selected and the A
to D is enabled, but does the sampling switch open when GO is
The sample and hold does open immediately. It is safe to point the S/H
to another channel just after initiating a conversion. I doubt it is
safe to do this in the same instruction, but I have done it in the next
instruction with no problems.
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