摘要
提出了一种采用CPLD和12位串行D/A转换器件DAC8043构成的可编程模拟信号调理的实现方法,通过CPLD的逻辑功能配置,使得所有信号通道的放大倍数可从1倍～1024倍在线编程控制。由于采用CPLD和串行D/A,整个模块硬件电路简单;采用地址操作方式,使用编程控制方便;采用PC104国际标准设计,可直接作为PC104的标准模块使用。
A method of programmable signal conditioning is supplied,which mainly con sists of complex programmable logic device(CPLD)and series D/A converter DAC 8043.The gains of the analogue signal can be programmed online from1to10 24via the special logic function configured in CPLD.The CPLD and series D/A converter make the hardware of the module is simply.The address operation mode ensures the module is convenient to control and program.Because the design is a ccorded with the PC104standard,the signal-conditioning module can be used a s a standard module of PC104.
出处
《电测与仪表》
北大核心
2003年第10期37-40,共4页
Electrical Measurement & Instrumentation
