what voltage is save to apply to the digital in selector pins on the ADG1213 when it is not powered up?
The data sheet references max IN voltage to VDD, i.e. for power down this would give max V = 0 + 0.3 = 0.3V?
While the data sheet mentions protection diodes (to not exceed 30mA), I'm not sure when these will kick in.
Using an ADG1234 in the past, I never noticed an issue applying V_hi=3V @IN when powered down, but in a current layout using the ADG1213 it looks like it causes issues.