基于AD7616的16通道数据采集系统设计  

AD7616-Based 16-Channel Data Acquisition System Design

作　　者：蔺红彦 尚禹[1] 韩建宁[1] 邢晨茹 郝国栋 LIN Hongyan;SHANG Yu;HAN Jianning;XING Chenru;HAO Guodong(College of Information and Communication Engineering,North University of China,Taiyuan 030051,China)

机构地区：[1]中北大学信息与通信工程学院,山西太原030051

出　　处：《测试技术学报》2024年第2期147-153,共7页Journal of Test and Measurement Technology

基　　金：山西省基础研究计划资助项目(202103021224201,202203021211100);国家自然科学基金资助项目(61671414)。

摘　　要：针对传统数据采集系统因通道不足或数据量过大,无法满足多通道同步采集的问题,设计了一种基于AD7616的16通道数据采集系统。系统以Xilinx系列FPGA作为主控芯片,ADI公司的AD7616作为模数转换芯片,DDR3 SDRAM作为缓存单元。介绍了各个模块硬件的设计思路,重点介绍了FPGA控制AD7616模数转换模块、DDR3 SDRAM缓存模块的软件程序设计,并对系统的多通道采样功能、同步性能以及实际水下超声信号的采集能力进行了实验验证,结果表明,系统可以完成水下超声信号的多通道同步采集。A multi-channel data acquisition system based on AD7616 is designed to address the problem that traditional data acquisition systems cannot meet the simultaneous acquisition of 16-channel data due to insufficient channels or excessive data volume.The system uses Xilinx series FPGA as the main control chip.The AD7616 from ADI is used as the analog-to-digital conversion chip.The DDR3 SDRAM is used as the cache unit.The article first introduces the design idea of each module hardware,then focuses on the software program design of the FPGA control AD7616 analog-to-digital conversion module,DDR3 SDRAM cache module.And the system’s multi-channel sampling function,synchronization performance and the actual underwater ultrasonic signal acquisition capability are experimentally verified,and the results show that the system can complete the multi-channel synchronization acquisition of underwater ultrasonic signals.

关 键 词：多通道数据采集 数据缓存 AD7616 Artix-7 DDR3 SDRAM 

分 类 号：TN919.5[电子电信—通信与信息系统]