Schwartz, David E.Charbon, EdoardoShepard, Kenneth L.2008-06-272008-06-272008-06-27200710.1109/VLSIC.2007.4342691https://infoscience.epfl.ch/handle/20.500.14299/26499A 64-by-64-pixel CMOS single-photon avalanche diode (SPAD) imager for time-resolved fluorescence detection features actively quenched and reset pixels, allowing gated detection to eliminate pile-up nonlinearities common to most time-correlated single-photon counting (TCSPC) approaches. Timing information is collected using an on-chip time-to-digital converter (TDC) based on a counter and a supply-regulated delay-locked loop (DLL).SPADTDCFluorescence lifetime imagingFLIMNCCR-MICSNCCR-MICS/CL2text::conference output::conference proceedings::conference paper