基于ADS8332的生理信号采集系统电路设计  

Circuit Design of Physiological Signal Acquisition System Based on ADS8332

作　　者：李大鹏[1] 赵捷[1] 张春游 陈甜甜[1] 尹文枫 张军建[1] 安佰京[1] 

机构地区：[1]山东师范大学物理与电子科学学院,山东济南250014

出　　处：《现代生物医学进展》2014年第6期1164-1166,1187,共4页Progress in Modern Biomedicine

基　　金：山东省自然科学基金项目(ZR2010HM020);济南市自主创新项目(201102005)

摘　　要：本文介绍了医学生理信号的的特点,根据其特点设计出了针对医学生理信号进行采集的电路。该电路设计实现了基于16位的高精度A/D转换芯片ADS8332的医学生理信号采集系统,以基于Cortex-M3内核的32位微控制器STM32F103RD作为采集控制芯片,该系统电路可以实现对最多16个通道的模拟医学生理信号进行采集。此电路设计充分利用了ADS8332的高精度、低功耗、高采样速率的特点以及片上集成功能,并配合了信号调理电路和相应的抗干扰措施,因此保证了医学生理信号的采集精度和系统的稳定性。In this paper, we introduces the characteristics of medical physiological signal, according to their characteristics, we design acquisition circuit for medical physiological signal. This physiological signal acquisition system circuit was designed and implemented based on the 16-bit high-precision serial A/D conversion chip ADS8332, and used 32-bit Cortex-M3 core-based microcontroller STM32F103RD as the acquisition control chip. This system circuit could achieve up to 16-channels of analog physiological signals acquisition capabilities. This circuit is designed to fully utilize the ADS8332 high-precision, low-power, high sampling rate characteristics as well as on-chip integration features, with a signal conditioning circuit and the corresponding anti-jamming measures to ensure the accuracy of medical physiological signal acquisition and system stability.

关 键 词：ADS8332 生理信号采集 STM32 16位A D 

分 类 号：R312[医药卫生—基础医学] TP312[自动化与计算机技术—计算机软件与理论]