基于SAR-ADC的精密同步数据采集系统设计OA
The design of a precision synchronous data acquisition system based on SAR-ADC
针对某精密数据采集系统中模拟信号同步采样问题,文章研究了多通道同步模拟信号采集方法,设计了一种基于SAR-ADC、使用FPGA控制的16位同步采样AD转换系统.该系统可实现模拟信号的实时同步采样,同时兼顾多路模拟信号采样频率要求的差异性,最后通过试验测试了该系统的信纳比(SINAD)和有效位数(ENOB).测试结果表明,该系统具有良好的动态性能指标.
For the problem of simultaneously sampling of multi-channel analog signals in a data acquiring system, the schemes of the system were discussed.Based on SAR-ADC, a kind of 16 bit AD convert system which controlled by FPGA was designed.The system could realize real-time synchronous sampling of analog signals.And the differences of sampling rate among multi-channel analog signals were well balanced in this system.The Signal to Noise and Distortion Ratio(SINAD)…查看全部>>
王炳文
中国航空工业集团公司西安航空计算技术研究所,陕西 西安 710065
计算机与自动化
SAR-ADC同步采样FPGA
SAR-ADCsimultaneously sampleFPGA
《微型机与应用》 2017 (7)
29-31,34,4
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