In this thesis, the description of a system on chip, designed to read a multi-band optic sensor, is provided. First, an overall analysis of the other solution used for optic sensing is given. After that, a brief description of the original interfaced detector array is provided. Subsequently, the main analog circuits (a TIA and an innovative Delta-Sigma converter), specifically designed to resolve the electric problems introduced by the sensor, and the controlling digital machine are analysed. Lastly, the result that validated the circuit are exposed and examined.