The paper presents a multichannel digital processor based on a configurable computing (FPGA) device for acquisition and programmable data processing in multi-detector systems. Main features of the processor are reconfigurability, linearity, low noise and processing data rate through hardware and firmware architecture solutions that also allow the system to operate in presence of electromagnetic noise, while at the same time minimizing its own radiated emissions. We present the customization of the processor in the framework of the HICAM project, which deals with the development of a compact and high resolution Anger camera to be used in clinical and research environments.