TY - GEN
T1 - A Current-Reuse Voltage-Domain Stacked AFE for Low-Cost Low-Power LiDAR
AU - Yang, Yuye
AU - Shan, Xinyin
AU - Ma, Shuaizhe
AU - Yao, Yuanhao
AU - Zhang, Bing
AU - Geng, Li
AU - Li, Dan
N1 - Publisher Copyright:
© 2025 IEEE.
PY - 2025
Y1 - 2025
N2 - This paper presents a current-reuse voltage-domain stacked analog front-end (AFE) for light detection and ranging (LiDAR) application, resolving 5V-to-sub-3.3V conversion losses through DC current recycling between stacked transimpedance amplifier (TIA) and post-amplifier (PA). In this design, Deep N-well technology is used for critical isolation and noise suppression. The stability of the merged power/ground network controlled by regulator ensures sub-mV ripple and waveform integrity. This chip is fabricated in a standard 180-nm CMOS process. It operates with a 3.6-V supply voltage and consumes only 11.12 mA, realizing a system-level power efficiency of 72%. It features a differential gain of 99.6 dBΩ, an input-referred noise of 5.63 pA/√Hz, a bandwidth of 90 MHz. Optical measurement and electrical measurement simultaneously prove the effectiveness of the proposed stack AFE, enabling it suitable for low-cost, low-power system applications.
AB - This paper presents a current-reuse voltage-domain stacked analog front-end (AFE) for light detection and ranging (LiDAR) application, resolving 5V-to-sub-3.3V conversion losses through DC current recycling between stacked transimpedance amplifier (TIA) and post-amplifier (PA). In this design, Deep N-well technology is used for critical isolation and noise suppression. The stability of the merged power/ground network controlled by regulator ensures sub-mV ripple and waveform integrity. This chip is fabricated in a standard 180-nm CMOS process. It operates with a 3.6-V supply voltage and consumes only 11.12 mA, realizing a system-level power efficiency of 72%. It features a differential gain of 99.6 dBΩ, an input-referred noise of 5.63 pA/√Hz, a bandwidth of 90 MHz. Optical measurement and electrical measurement simultaneously prove the effectiveness of the proposed stack AFE, enabling it suitable for low-cost, low-power system applications.
KW - LiDAR
KW - power efficiency
KW - sensors
KW - stacked receiver
KW - transimpedance amplifier (TIA)
UR - https://www.scopus.com/pages/publications/105034638887
U2 - 10.1109/ICTA68203.2025.11329698
DO - 10.1109/ICTA68203.2025.11329698
M3 - 会议稿件
AN - SCOPUS:105034638887
T3 - 2025 IEEE 8th International Conference on Integrated Circuits, Technologies and Applications, ICTA 2025
SP - 246
EP - 247
BT - 2025 IEEE 8th International Conference on Integrated Circuits, Technologies and Applications, ICTA 2025
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2025 IEEE 8th International Conference on Integrated Circuits, Technologies, and Applications, ICTA2025
Y2 - 22 October 2025 through 24 October 2025
ER -