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AD5754R output glitches

Question asked by rehfi on Sep 9, 2016
Latest reply on Oct 10, 2016 by rehfi



I have a AD5754R that is constantly updating its outputs, but without changing the register value. With each update I can see a glitch on the output voltage that looks like the waveform in the datasheet's Figure 29: "Digital-to-Analog Glitch Energy".


Is that normal?


I found the "Glitch Impulse Peak Amplitude" spec, which would fit to my observation, but the description for the specification (and for Figure 29) restrict them for the "change from 0x7fff to 0x8000 / 0x8000 to 0x7fff" case.


Is the "Glitch Impulse Peak Amplitude" spec restricted to just this case or does it apply to all register values?