Actually AD5260 and ADG1414 do have a VL input.
Besides, if I read the datasheets correctly, the ESD protection diodes could be forward biased if I supply any voltage higher than the conduction value of such diodes in the wrong order.
Also, even if they're typically robust enough, it's long term reliability what concerns me.
That's why I want to make sure all power rails are disabled and drained out of charge in the right order, and I wanted to know if taking too much time to do this would cause any issues in the long run.
I guess this would be not be a concern on devices without VL pins, so AD5290 and ADG1211/12 would be out of the question.
Regards,
Juan