Nathan House wrote:
> That table has always confused me. Would anyone know why the slower
> the sampling rate, the higher the minimum Tad time requirement? If I
> understand correctly, Tad represents the amount of time that it takes
> to convert one bit. Shouldn't it take the same amount of time to
> convert the bits, regardless of how fast you're sampling?

Yes, as long as all bits get done in time to start the acqusition of the
next value.  There is a valid range for Tad where everything else the
datasheet says about the A/D still applies.  If Tad is too long, then the
sample and hold can drift.  If Tad is too short, then things don't settle in
time to decide what the bit value should be.

Screw the table.  That's only for people that flunked 5th grade arithmatic.
Keep Tad within the specified limits (as with all datasheet parameters), and
everything will be OK.


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