How do we set a positive voltage when 2sComplent is selected along with +/-10V? We can only get a negative output.
What specific codes are you using? What is your reference voltage? Maybe somehting has been missed.
Table 8 in the data sheet shows the Digital Input that is needed to produce a bipolar output either +/-5V, +/-10V, or +/-10.8V.
This can be expressed by the following:
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