Downscaling Sensor output
The analogue output of the sensor is this: -



In other words it only creeps a little above 3V so use a light potential divider to drop the maximum down to a few tens of mV below 3V. Unfortunately the data sheet gives no indication of its output impedance so this will be a bit of trial and error but I suspect 180 ohms and 3k3 down to ground is a good starting point - this would reduce a peak 3.1 volts to 2.94 volts.


  The Analog Output is: max Vcc+0.3V


No, that's the maximum range of voltages you can put on the pin.