The xTDC4 is the newest TDC product from cronologic. With an unprecedented ease of use for developers it provides a high resolution of 13 ps and the fastest readout rate available. Its characteristics make it perfectly suited for high hit rate TOF applications such as time-of-flight mass spectroscopy, delay line imaging, time correlated single photon counting (TCSPC) and LIDAR.


  • 4 NIM compatible stop inputs
  • 1 NIM compatbile start input
  • 13 ps resolution
  • 12 MHit/s hitrate per channel
  • 48 MHit/s total readout rate over PCIe x1
  • 218 µs default range, 14 ms extended range
  • 15x multi hit per channel per start event
  • Adjustable trigger gate to suppress unwanted data
  • Easy to use Windows C API
  • PCIe 1.1 x1 bus master interface