HI1171 fast DAC internal connections

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Hi group,

does anybody know, or can somebody find out with a DMM, if the two DVSS
pins (10 and 13, digital ground) of the HI1171 fast DAC are internally
connected or not? (The Harris/Intersil datasheet doesn't tell.)

I am looking into digital noise getting into the analog section of a
data acquisition board (there are fast ADCs as well), and I don't want
to desolder the part.

Thanks,

Martin.