I am building a 2 axis tilt sensor with digital interface to host controller for which we are finalizing mems sensor. I came across two products on your website, viz. ADIS16006 and ADIS16203. One is an accelerometer whether the other is inclinometer. When I look at internal block diagrams, both have mems accelerometer inside.
Can't I just use an accelerometer device which is ADIS16006 for my application and then do necessary computation to convert g values to deg. values on software side?
You certainly can, but then you will need to manage the calibration on your own as well. The ADIS16209 is another one that you can consider, if you expect thermal variation in your environment. The ADIS16209 has roughly 5-6x better accuracy than the ADIS16203, at ~1.5x the price.