On Fri, 14 Sep 2012 15:08:53 -0700, Hal Murray <hmur...@megapathdsl.net> wrote:
>d...@montana.com said: >> Michael: Actually implementing a 16 bit DAC to its 1-bit minimum resolution >> will be headache enough. You will gain a real education in good grounding >> practice, shielding, power supply stability and noise, and other Murphy >> intrusion. A 32 bit DAC IMHO, is impossible, and that's the name of that >> tune. > >The trick for this application is that you don't need full accuracy over the >full range of the DAC. All you need is roughly linear and stable around the >operating point. The PLL will take care of any offset. Any gain error is >just a minor change to the overall gain. One thing you sure want is a DAC that is monotonic. Differential nonlinearity larger than the least significant bit can cause some rather peculiar servo loop problems. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.