For a project I am working on there is a need for greater AD accuracy than is provided with stock Arduinos.
I have observed several people attempting to work with higher bit resolution AD converters, but nothing is definitive.
Specifically I am looking at using the maxim11040 initially. It is a 24 bit AD converter this will serve as a reference point for what is the lowest bit resolution feasible AD converter we can use to finish the Project.
The project in question is a multiplexed temperature sensor where we are using differential scanning calorimetry to observe multiple sites within organs in parallel. We need to directly observe the freezing isotherms and traditional DSC are insufficient for non-homogeneous materials
Has anyone any experience with the above AD converter or other similar ones? It seems like it would fit nicely with the arduino as the cooling controller and the cascade multiplexing option is quite nice.
If noone has directly used this device what about experience with other AD converters (>14 bits)? Example SPI interfacing code? Circuit boards and trace? Runtime implications (table lookup for correction?).
Thanks in advance