Here is Tolic from Edinburgh.
Going to control moving system acceleration and inclination with reference to gravity. Expected inclination range is about ±5˚ expected accuracy 0.1˚ System will be controlled by PIC18F MCU. What AD parts can be recommended?
Since you mention that the system will be moving, what level of acceleration are you anticipating, in addition to the gravity contribution? Is 0.1 degrees a maximum allowable error? I would exercise care in this definition, as that could greatly influence what must be done to support that objective.