I have a board with 2 AD5668 DACs, one is perfectly working, the other has malfunction.
Both have the same write sequence.
I can switch between the external and internel voltage reference without any problem.
If I try to set VoutA it works one time only. Then the output voltage remains static. After that there is no reaction to further write sequences, I only can set Vref.
I testet a second board with the same layout wich has the same problem.
Does anybody know about that problem?