“…TDC has been deployed as a key component in some of the applications, namely, ADPLL, 1 ADDLL, 2 clock and data recovery (CDR) circuit, 3 time‐over‐threshold (TOT) positron emission tomography (PET), 4 jitter measurement, 5 time‐of‐flight (TOF) laser radar, 6 TOF PET scanner, 7 silicon photomultiplier SiPM PET, 8 Light Detection And Ranging (LiDAR), 9 digital storage oscilloscope, 10 fluorescence–lifetime imaging microscopy (FLIM), 11 3‐D imaging, 12 Raman spectroscopy, 13 on‐chip temperature sensor 14,15 , time domain ADCs, 16 DC–DC converter, 17 and radio frequency identification (RFID) tag sensor 18 . Earlier, TDC applications limited to high energy physics experiments and later found in ADPLL (all digital phase‐locked loop) as a phase detector.…”