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Troubleshooting EVAL-AD5791SDZ

Question asked by mhavu on Jun 20, 2017
Latest reply on Jun 21, 2017 by mhavu

Are there any measurements I could do on a EVAL-AD5791SDZ to verify that the AD5791 on the board is functional? I am trying to read the AD5791 register via J6 using SPI, but I cannot get any response from the board. The supply voltages on the AD5791 seem to be ok, but the reference voltages are not as specified. (U28-6 gives 1.25 V instead of 10 V, and U8-7 gives -3.34 V instead of -10 V.)