Richard Seriani, Sr. wrote:

> Is this the correct way to do this, or should I be padding the
> low-order four bits, instead? That has been suggested, but, somehow,
> that doesn't seem right.

What you're doing sounds right.
Since the DAC is 12 bit (IIRC), you can choose to pad lower, higher, or 
here and there :)
If you pad LSBs, you'll get a wider range (just like the DAC was a 8bit 
one); if you pad MSBs, your DAC will only move 1/16 of its output range.

IMO you'll want to go the 1st way.

-- 
Ciao, Dario
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