It measures a lot better. 1/2 distortion at 0dBFS and 3 x dynamic range.
It appears 1704 is the limit of R2R linearity in a chip and BB must
have felt they needed to come up with an answer to competitors
dacs such as AD1853 etc.
My gut feeling is the 1704 is easier to get VG results with, lower
OP current, very low OOB RF noise into I-V, less susceptibility to
jitter.
Maybe the 1794 is a jewel waiting to be uncovered but only with
very careful implementation???
Whilst you are in dac research mode it's worth a look at the
Lavry DA 924, 24 bit / 96k fully discrete ladder dac.
The manual is a very interesting read.
Lavry Engineering
Dan's a very smart guy.
cheers
Terry
