基于AD650的VFC型A/D转换器

针对实际工程的技术要求，设计了一种新型高精度模数转换电路——VFC型A／D转换器。该电路作为计算机控制系统与受控设备之间的接口电路，在计算机控制下，所有的逻辑判断和校正网络均由计算机软件实现，此转换电路不仅调试方便、简单，而且增加了系统的可靠性。实践表明，设计的VFC型A／D转换电路完全满足系统设计要求。本文详细叙述了VFC型A／D转换电路的工作原理、设计思想和实现方法。

VFC Type of A/D Convertor Based on AD650

According to practical engineering requirements, designing a new type of more accurate A/D convertor circuitVFC type of A/D convertor which is used as the inlet/outlet circuit. All of logic judgement and rigging network are realized by a computer software to convert under computer controlling. The circuit of debugging not only convenient, but also simple and increases the reliability of the system, It proves that VFC type of A/D convertor is fully satisfied with design requirements of the system., The article describes the principle,design theory and realizing methods of VFC type of convertor.