[time-nuts] V standards

Hal Murray hmurray at megapathdsl.net
Mon Dec 1 20:12:13 UTC 2008


>   I haven't had much luck finding a true 24-bit DAC. There  are plenty
>   of stereo dacs, but they can have gain drifts of 100ppm/C,  which is
>   useless for a reference. 

I've been watching ADCs more than DACs, but I'll bet they follow the same 
pattern.

For ADCs, there seem to be two markets with two sets of features.  One type 
has DC specifications that are interesting for this discussion, things like 
drift and linearity.

The other type focuses on AC specifications.  The typical application is 
audio or radar.  The data sheet usually includes FFT pictures.  Specs include 
things like ENOB, effective number of bits.  (It's usually better at less 
than max frequency.)


-- 
These are my opinions, not necessarily my employer's.  I hate spam.






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