Digital Silicon Photomultipliers with OR/XOR Pulse Combining Techniques

摘要

recently proposed XOR-based Digital SiliconPhotomultiplier is compared against the OR-based counterpart.We show experimental data from a set of SPAD pixelarrays in 130nm CMOS process with selectable OR tree andXOR tree for direct comparison. We demonstrate how XOR baseddSiPMs solve the limitation caused by monostablecircuits and reach higher maximum count rates comparedto optimised OR-based dSiPMs. The increased throughputof the SPAD array allows higher sampling rates for thedigitisation of the light signal enhancing dynamic range andlinearity.