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AD5541A glitches every 512 codes

Question asked by ckimble on Apr 25, 2016
Latest reply on Apr 26, 2016 by KenK

The AD5541A on our board is producing noise glitches at 512-code intervals.  To be specific, when stepped in increments of 32 DAC codes, starting at mid range (0x8000), we see noise glitches every 16 increments (e.g., at 0x8200, 0x8400, etc.).  I might have expected detectable glitches at carries of the four MSBs of this 16-bit DAC, but why are we seeing such noise every paltry 512 codes?   Is there something to the architecture or trimming of this DAC that would account for these glitches?  Thanks for any help...