channels when using the part. However, there is no crosstalk spec in the
datasheet .Would you please give some suggestion to this problem.
A table of crosstalk measurements is provided in the attachment using the
AD5415 which is the same core as the AD5449 which is the 12-bit version of the
AD5439. You should be getting similar figures to these. If not it's very much a
layout issue. Using decoupling caps, keeping tracks as far from each other as
possible etc, see further recommendations on layout in the datasheet.