A 128×2 CMOS Single-Photon Streak Camera with Timing-Preserving Latchless Pipeline Readout

A 0.35mum CMOS camera uses 128 single-photon avalanche diodes to simultaneously detect 128 photon times-of-arrival, which are then translated onto pulses that are independently injected into a timing-preserving delay line, implemented along the sensor´s column. With this design, an overall timing accuracy of 145ps (worst case) is achieved, which enables high-precision time-correlated single-photon counting for state-of-the-art physics, bio-molecular, and medical imaging applications.