⚡ 本页包含 AI 生成的分析内容,仅供参考
该论文提出一种混合记录系统,可同时采集ExG(如ENG、ECG)和生物电流(化学、PPG等)信号。在10kHz带宽下实现84.6dB SNDR和173.3dB FoMSNDR,在5kHz带宽下实现114dB动态范围,解决了低功耗高精度多模生物信号记录的需求。
Jeongyoon Wie, Yeonjae Shin, Hongki Kang, Jae Eun Jang, Arup K. George, Junghyup Lee Daegu Gyeongbuk Institute of Science and Technology, Daegu, Korea As the precise acquisition of continuous ExG (ENG, ECG, etc.) and biocurrent (chemical, PPG, etc.) signals provides further insights into chronic health conditions [1,2], a lowpower readout system capable of simultaneously recording ExG and biocurrent signals with high precision is beneficial (Fig. 33.11.1(a)). Such a system requires BW>5kHz, noise floor ~100nV/√Hz, and FOMSNDR>170dB to cover the entire ExG spectrum. Also, an input range (IR)>100mVPP is necessary to prevent saturation. Likewise, for biocurrent acquisition, a system has to meet BW>1kHz, noise floor ~1pArms/√Hz, and DR>100dB to detect small charge perturbations without saturation from large baseline currents. Extensive effort has been conducted to design a simultaneous V & I monitoring system
Taeryoung Seol, Geunha Kim, Sehwan Lee, Samhwan Kim, Dongwook Kim,