Reading device for a mosaic of detectors electromagnetic and detection system equipped with such a device

Reading device for a plurality of radiation detectors arranged in a detector array and including a plurality of capacitors (222) each connected to a read circuit (224, 225). According to the invention, each capacitor ( 222) is associated with a subset of several detectors of the mosaic, the reading device further comprising a plurality of controllable switches (231, 232, 233, 234) for successively connecting each detector of each sub-assembly, respectively , to the integrating capacitor (222) associated, and the reading device comprising means (226) court order the closing and opening of the switches according to an order excluding the simultaneous reading of closest neighboring detectors signal.