8位并行高速A/D芯片MAX153在数据采集系统中的应用

High-speed parallel 8-bit A/D convertor MAX153 and its application in data acquisition system

阐述了MAXIM公司推出的高速模数转换芯片MAX153的工作原理和工作模式,在此基础上提出了2种以MAX153为核心的高速数据采集系统的设计方案。第一种方案是选用与MAX153速度匹配的DSP或高速单片机作为数据采集系统的微处理器。给出了这种设计方案的硬件框图及核心源程序。第二种方案是应用并行数据传送方法中高效的DMA方式来为MAX153与存储器之间的数据传输提供直接的传输通道。

The paper introduce a high-speed A/D convertor MAX153, which is produced by MAXIM. The author expounds the principium of this chip and provide 2 methods to use it in high-speed data acquisition system .One method is to use high-speed CPU to match MAX153. The paper gives the hardware connection diagram and pivotal program of this method. Another way is to use DMA method to build a data transmission bridge of the system so as to liberate CPU.