AD7779 power supply sequencing

Is a power-supply sequence recommended for power-up of AD7779 ?

In datasheet seems to be no requirement.

However, in EVAL-AD7779 evaluation board schematic, there is ADM1185 quad voltage monitor and sequencer.

From there looks that AD7779 analog supplies (AVDDx/AVSSx) are powered-up first.

Digital interface AD7779 analog supplies (IOVDD) are powered-up 190 ms after that.

Is this power-up sequence necessary?