A 0.7V 17fJ/step-FOMW 178.1dB-FOMSNDR 10kHz-BW 560mVPP True-ExG Biopotential Acquisition System with Parasitic-Insensitive 421MΩ Input Impedance in 0.18µm CMOS

📋 论文概要

本文提出了一种0.7V供电、10kHz带宽、560mVPP输入范围的真正ExG生物电位采集系统，实现了17fJ/step的FOMW和178.1dB的FOMSNDR，解决了传统系统寄生敏感性和低输入阻抗的问题。

💡 主要创新点

• 实现寄生不敏感的True-ExG采集，在0.7V低电压下达到高输入阻抗和低噪声
• 采用创新电路架构，在10kHz带宽内以17fJ/step的能效实现178.1dB的FOMSNDR

🏷 关键词

📄 原文摘要

Taeryoung Seol1, Homin Jang1, Doyoung Lee1, Minkyu Je2, Ji-Woong Choi1, Arup K. George1, Junghyup Lee1 Daegu Gyeongbuk Institute of Science and Technology, Daegu, Korea KAIST, Daejeon, Korea 1 2 Insights derived from epidemiological studies on the ExG (ECG, EEG, ENG, etc.) biopotentials can shed light on the underlying mechanisms of several chronic health conditions. A true biopotential acquisition system needs to have a noise floor <100nV/√Hz, bandwidth up to 10kHz and input impedance >100MΩ to be able to cover the entire ExG spectrum (Fig. 20.3.1(a)). Also input range >100mVPP is needed to avoid saturation in the presence of stimulation/motion artifacts. SNDR >80dB is needed to support ENG acquisition. Biopotential acquisition systems reported so far are not able to meet all the specifications required to readout all the ExG signals. For instance, the DC-Coupled CTDSM [1] achieves >10kHz BW, >80dB SNDR and high input impedance (Fig. 20.3.1(b)). However, the 1/f

👥 作者与机构

Sehwan Lee1, Yoonsung Choi1, Geunha Kim1, Seungyeob Baik1,