Hello Gastone,
To be honest, this is not the right forum for managing this type of request. While I am not sure that this would qualify as a condition for return under ADI's warranty, I want to help you. Can you start with your point of purchase and ask them to request support from the ADIS16480 application engineer at ADI, citing this discussion as evidence that ADI is willing to discuss a one-time exchange of one unit, in the interest helping you with your evaluation? If this path is not helpful for you, post that in this discussion post and I will connect with you through email and help you from my end.
Best,
NevadaMark