An integrated time-to-digital converter with 30-ps single-shot precision

  title={An integrated time-to-digital converter with 30-ps single-shot precision},
  author={Elvi Raisanen-Ruotsalainen and Timo Rahkonen and Juha Kostamovaara},
  journal={IEEE Journal of Solid-State Circuits},
A time-to-digital converter (TDC) with 32-ps resolution and 2.5-/spl mu/s measurement range has been integrated in a 0.8-/spl mu/m BiCMOS process. The TDC is based on a counter with a 100-MHz clock. Two separate time digitizers improve the time resolution by interpolating within the clock period. These interpolators are based on analog dual-slope conversion. According to test results, the single-shot precision of the TDC is better than 30 ps (/spl sigma/-value) and the nonlinearity is less than… CONTINUE READING
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