Is this sufficient filtering for an mcu?
"optionally have an inductor . . or ferrite bead"   Sounds like the voice of experience in their recommendation.  

Make sure you add bypass capacitors on the Analog side of the ferite bead, or the bead won't help.  The ferrite bead acts as a high frequency resistor.  The higher the frequency the higher the resistance. But doesn't interfere with your supplying the DC required for the Analog supply.  

EDIT :  I just noticed your 10K resistor from Digital supply to Analog Supply.  Using a resistor there is not a good idea, unless you have some reason for the resistor. A resistor will drop voltage at DC (supply to your Analog). A ferrite bead won't cause voltage drop at DC (which is good).