Maybe nothing. I was curious so I checked the data sheet and there is no
data on the D/A. That may be within the range of offsets on the D/A.
You could try placing a unity gain buffer after the D/A to reduce
loading. You should probably feed it off of a bipolar supply in that case
though.
Without NXP actually characterizing the D/A you are pretty much on your own
I'm afraid. NXP really needs to step up here and document the device
properly.
Robert
http://www.aeolusdevelopment.com/
From the Divided by a Common Language File (Edited to protect the guilty)
ME - "I'd like to get Price and delivery for connector Part #
XXXXX"
Dist./Rep - "$X.XX Lead time 37 days"
ME - "Anything we can do about lead time? 37 days seems a bit
high."
Dist./Rep - "that is the lead time given because our stock is live.... we
currently have stock."