On the DAC8554, our design may have the analog power rail (AVDD, 5V) powered off for extended periods while the digital power rail (IOVDD, 3.3V) remains powered. All the digital inputs (SYNC, CLK, DIN, LDAC, ENABLE, A0, A1) will be driven low while in this state.
Is there any reliability concern with operating the DAC8554 in this mode for extended periods?
Thanks,
John