A modified 2-D vernier time-to-digital converter using resettable T-latch

Young Min Jang, Ying He, Sang Bok Cho, Ji Hoon Kim, Sung Min Park

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


This paper presents a modified two-dimensional (2D) Vernier time-to-digital converter (TDC) utilizing a novel resettable T-latch circuit for the applications of LiDAR systems. By utilizing resettable T-latches, a narrow input pulse can be converted to a high-latched output which can be reset only when the rising edge of another input pulse is detected. The proposed 2D Vernier TDC was implemented in a 0.13-μm CMOS process, demonstrating correct 4-bit digital code outputs within 27-meter range with 0.15-mW power dissipation from a single 1.2-V supply. The chip core occupies the area of 0.6 x 0.25 mm2.

Original languageEnglish
Pages (from-to)477-484
Number of pages8
JournalJournal of Semiconductor Technology and Science
Issue number5
StatePublished - 2019

Bibliographical note

Publisher Copyright:
© 2019, Institute of Electronics Engineers of Korea. All rights reserved.


  • CMOS
  • LiDAR
  • Resettable T-latch
  • TDC
  • Vernier


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