An Optoelectronic Read-Out IC for Indoor-Monitoring LiDAR Sensors in 180-nm CMOS

  • Shinhae Choi Ewha Womans University
  • Yeojin Chon Ewha Womans University
  • Sung Min Park Ewha Womans University
DOI: https://doi.org/10.23075/jicas.2024.10.3.004
Keywords: A2V, T2V, APD, LiDAR, optoelectronic, TIA

Abstract

This paper presents an optoelectronic read-out integrated circuit (ROIC) for the applications of indoor-monitoring LiDAR sensors by utilizing a 180-nm CMOS technology, which consists of a spatially modulated P+/N-well avalanche photodiode, amplitude-to-voltage (A2V) converter, and time-to-voltage (T2V) converter, respectively. Post-layout simulations reveal that the analog A2V converter enables to recover the input currents of 5 ~ 500 mApp with an almost linear step with the aid of gain control scheme, while the T2V converter can restore 50 mApp ~ 1.1 mApp input currents. The whole 8x8 ROIC array dissipates 262 mW in total from a single 1.8-V supply and occupies the area of 2.1 x 2.0 mm2 including I/O pads.

Author Biographies

Shinhae Choi, Ewha Womans University

Shinhae Choi received the B.S. degree in electronic and electrical engineering from Ewha Womans University, Korea, in 2023. Her current research interests include silicon photonics and CMOS optoelectronic integrated circuits and architectures for short-distance optical application systems and sensor interface IC designs.

Yeojin Chon, Ewha Womans University

Yeojin Chon received the B.S. degree in electronic and electrical engineering from Ewha Womans University, Korea, in 2022. Her current research interests include silicon photonics and CMOS optoelectronic integrated circuits and architectures for short-distance optical application systems and sensor interface IC designs.

Sung Min Park, Ewha Womans University

Sung Min Park received the B.S. degree in electrical and electronic engineering from KAIST, Korea, in 1993. He received the M.S. degree in electrical engineering from University College London, U.K., in 1994, and the Ph.D. degree in electrical and electronic engineering from Imperial College London, U.K., in May 2000. In 2004, he joined the faculty of the Department of Electronics Engineering at Ewha Womans University in Seoul, Korea, where he is currently a professor.

Homepage : https://sites.google.com/view/acsl-lab/home

Published
2024-07-01
How to Cite
Choi, S., Chon, Y., & Park, S. M. (2024). An Optoelectronic Read-Out IC for Indoor-Monitoring LiDAR Sensors in 180-nm CMOS. Journal of Integrated Circuits and Systems, 10(3). https://doi.org/10.23075/jicas.2024.10.3.004
Issue
Vol 10 No 3 (2024)
Section
Articles