Has anyone found a schematic for the Arduino variant of the CN0216 (CN0216-ARDZ)?
The CD that comes with the EvKit has very little on it, and refers to the SDP variant.
(A bit of reverse engineering shows) There is an odd ADG3308 voltage translator that is powered via the "i/o ref" pin. Given that the "I/Oref" pin isn't present on all Arduinos , and Arduinos run on 5v like the AD7791 there is no need for the level translators.
The power arrangement is a bit odd. I'm just going to connect +5 from my CPU to the power input, and see how well the LDP3301 manages with 0v headroom, and connect same 5v to straingage , and to level converter, and see how it all goes.