Self-suppression of reset induced triggering in picosecond SPAD timing circuits

摘要

We present a new photon timing circuit that achieves a time resolution of 35 ps full width at halfmaximum with single photon avalanche diodes having active area diameters up to 200 (mu)m. The timing circuit is based on a double avalanche current sensing network that makes it particularly suited to operation at high photon counting rates. Thanks to its self-adjusting capabilities, no trimming is needed even when changing the photodetector operating conditions over a wide range.