The present paper aims to present the final design and results of the FADC Mezzanine for EXOGAM and NEDA detectors, focusing on the resolution performance. Finally, the conclusion shows how a common digitizing device has been integrated in an experimental environment involving low-noise and fast sampling rates. Not only the integration fulfilled the expected specifications on both systems, but also, it shows how a study of synergy between detectors has led to a reduction of resources and time by applying a common strategy.