“…The chip provides an analogue sampling of the signal peak on each of the 128 inputs, which can then be read-out in serial, sparse, and sparsewith-neighbors modes. Because the GP5 has been designed for silicon detectors, a diode-protection IC [4], originally intended for use in the TOTEM experiment [5], has been incorporated just before the inputs of the GP5. The diode protection IC and the GP5 ASIC, which together have been named DPGP frontend, are mounted on a custom made hybrid whose board-toboard connectivity is compatible with all current GEM detector designs produced at CERN.…”