@inproceedings{dcf5530d9530440e8fd3f1ed351ba794,
title = "A PPG Analog Front-End with PVT-Insensitive High-Pass Frequency",
abstract = "This paper presents an analog front-end (AFE) circuit for photoplethysmography measurement that features a PVT-insensitive high-pass frequency. The DC photocurrent is cancelled out by a DC servo loop which consists of a very-large time constant integrator with a PVT-insensitive pseudo resistor and a resistive feedback current source. Designed in 65 nm CMOS, the proposed AFE consumes 20μW from a 1.2 V power supply, and is capable of eliminating the DC current ranging from 100 nA to 10 μA while stabilizing the high-pass pole at around 0.34 Hz with a maximum variation of 11.7\%.",
keywords = "DC servo loop, PVT-insensitive, analog front-end, photoplethysmography",
author = "Zhaofeng Huang and Zepeng Huang and Hengchang Bi and Xing Wu and Liangjian Lyu",
note = "Publisher Copyright: {\textcopyright} 2024 IEEE.; 17th IEEE International Conference on Solid-State and Integrated Circuit Technology, ICSICT 2024 ; Conference date: 22-10-2024 Through 25-10-2024",
year = "2024",
doi = "10.1109/ICSICT62049.2024.10831999",
language = "英语",
series = "2024 IEEE 17th International Conference on Solid-State and Integrated Circuit Technology, ICSICT 2024",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
editor = "Fan Ye and Xiaona Zhu and Tang, \{Ting Ao\}",
booktitle = "2024 IEEE 17th International Conference on Solid-State and Integrated Circuit Technology, ICSICT 2024",
address = "美国",
}