测控中高精度快速A/D采样转换模块设计  

The Design of Fast A/D Sampling Transform Module in Test and Diagnosis System

作　　者：马立军[1] 

机构地区：[1]柳州职业技术学院,广西柳州545006

出　　处：《微计算机信息》2009年第11期308-309,295,共3页Control & Automation

基　　金：广西自然科学基金项目(桂科自0729016);项目名称:多层PCB板自动诊断测试综合平台;颁发部门:广西省自然科学基金委员(桂科自0729016)

摘　　要：本文提出了一种应用于测试诊断系统的高精度A/D采样模块设计方案。根据测控系统的设计要求,分析了A/D转换芯片的选择依据,并对选定的芯片内部结构特点进行了论述。文章重点分析了A/D转换模块中的量化与过采样技术的实现,给出了具体的计算公式和实现方法。最后为了提高转换模块的可靠性,分析了该模块在设计中应注意的可靠性设计技巧。This paper proposed one kind high accuracy A/D sampling module design proposal which applies to the test diagnosis system. According to the test diagnosis system design request, has analyzed the A/D transformation chip choice basis, and has carried on the elaboration to the designation chip internal structure characteristic. The paper has analyzed in the A/D transformation module quantification and the sampling technology realization with emphasis, has produced the conerete formula and the realization method. Finally in order to enhance the reliability of the transformation module, has analyzed this module the reliahility design skill which should pay attention in the design.

关 键 词：A/D转换 高精度 测控 可靠性 量化 

分 类 号：TN919[电子电信—通信与信息系统]