[time-nuts] GPS Locked and Unlocked Performance Comparison
SAIDJACK at aol.com
SAIDJACK at aol.com
Thu Feb 14 20:36:14 UTC 2008
Hello Didier,
maybe you are right, and that's not easy to find. I remember an app not from
LT (Jim WIlliams?) that discussed how to build a high-accuracy DC output DAC
using a Sigma Delta ADC and some logic etc.
Finding a 24 bit ADC is pretty easy, ADI, TI, Linear, Maxim etc seem to
offer these.
One could also build a composite DAC out of two 16 bit DAC's or two 20 bit
DAC's etc. The voltage reference is key to good performance here, and should
have <<3ppm tempco to get anywhere near the 24 bits of accuracy.
bye,
Said
In a message dated 2/14/2008 02:02:36 Pacific Standard Time, didier at cox.net
writes:
What 24 bit DAC do you have in mind?
I have been looking for a standalone 24 bit DAC in a small package and have
not found anything I liked :-(
**************The year's hottest artists on the red carpet at the Grammy
Awards. Go to AOL Music.
(http://music.aol.com/grammys?NCID=aolcmp00300000002565)
More information about the Time-nuts_lists.febo.com
mailing list