Is power down cirsuits in AD5689R?

for clarification.
DAC have slew rate 0,8V/us i.e slew from 0 to 2,5V aproximately 3us.
If I use it externa switch , I can disconnect DAC , set DAC on 2,5V and connect DAC tu summing amplifier With considerably higher slew rate.
Internal switch in DAC.
In DS is "The time that is required to exit power-down is typically 4.5 μs for VDD = 5 V."
I hope most of this time is on awakening and setting the DAC, the switch is faster and so the slew rate will be similar to when using an external switch, for example DG211.

for clarification.
DAC have slew rate 0,8V/us i.e slew from 0 to 2,5V aproximately 3us.
If I use it externa switch , I can disconnect DAC , set DAC on 2,5V and connect DAC tu summing amplifier With considerably higher slew rate.
Internal switch in DAC.
In DS is "The time that is required to exit power-down is typically 4.5 μs for VDD = 5 V."
I hope most of this time is on awakening and setting the DAC, the switch is faster and so the slew rate will be similar to when using an external switch, for example DG211.