An 8-Channel Wearable EEG Acquisition Front-End IC with Integrated Multi-Functions

YuanRen, JinHe, JunPan, Jingjing Liu, XiaomengWang, ChunlaiLi
July 2019
Cite Source Document DOI

Abstract

This paper presents a single chip integrated 8-channel biomedical signal readout front-end circuit for wearable EEG acquisition system following a low power and high dynamic range (DR) strategy. The proposed 8-channel hybrid sigma-delta analog-to-digital convertor (HSD-ADC) contains a programmable-gain input interface in the first stage to allow the users to optimize their system with different ranges of input level. The time-interleaving technique is used on the second channel-shared stage for low power dissipation. The prototype chip is designed with 65 nm CMOS technology. Post-layout simulation results show a SNDR of 83.7 dB and 98.5 dB dynamic range with S5 μW power dissipation per channel at 1.2 V operation.

Type
Conference paper
Publication
In 2019 IEEE International Conference on Electron Devices and Solid-State Circuits (EDSSC)
Jingjing Liu
Jingjing Liu
Associate Professor

My research interests include low-power smart micro-sensor integrated circuit design, image sensors, biomedical sensors, and energy harvesting circuits.