传感技术学报2018，Vol.31Issue(3)：350-354,5.DOI:10.3969/j.issn.1004-1699.2018.03.006
CMOS脉搏血氧采集传感器信号处理电路设计
Design of Signal Processing Circuit Based on CMOS Pulse Blood Oximetry Acquisition Sensor
摘要
Abstract
To solve small amplitude and strong noise of pulse signal,design of signal processing circuit based on CMOS pulse blood oximetry acquisition sensor is presented. It is implemented in UMC 0.18 μm 1P6M CMOS process. In this paper,a new signal processing circuit is presented with amplifying weak signal,reducing noise effec-tively and filtering high frequency signal,so as to reach the input range of analog to digital conversion. Experiment results showed that the system achieve CMRR and PSRR more than 88 dB,and programmable gains from 30 dB to 54 dB,and output dynamic range from 0.7 V to 1.4 V. Power dissipations of the whole IC were 360 μW under a 1.8 Vsingle supply voltage,which achieved the desired results.关键词
脉搏血氧采集传感器/信号处理电路/CMOS工艺/弱幅放大Key words
pulse blood oximetry acquisition sensor/signal processing/CMOS/amplifying weak signal分类
信息技术与安全科学引用本文复制引用
陈力颖,倪立强,汤勇,周小洁,谭康..CMOS脉搏血氧采集传感器信号处理电路设计[J].传感技术学报,2018,31(3):350-354,5.基金项目
天津市应用基础与前沿技术研究计划项目(15JCYBJC16300) （15JCYBJC16300）
天津科技特派员项目(16JCTPJC45500) （16JCTPJC45500）
