基于串行DAC8420芯片的模拟量输出卡设计  

Design of Analog Signal Output Board Based on Serial DAC8420 Chip

作　　者：张彦[1] 吴昌才[1] 刘暾东[1] 李茂青[1] 

机构地区：[1]厦门大学自动化系,福建厦门361005

出　　处：《工业控制计算机》2006年第3期19-20,共2页Industrial Control Computer

摘　　要：DAC8420是4路12位DAC芯片,具有功耗低、转换速度快和精度高的特点;同时,其与微处理器的I/O接口采用高速串行连接方式,简化了硬件电路设计。在介绍该芯片内部组成结构的基础上,给出一种多类电信号输出采集卡的软硬件设计,并对系统中的抗干扰措施给予一定的介绍。DAC8420 is a quad,12-bit voltage Digital-to-Analog Converter with characteristic of low power consumption.fast conversion speed and high precision,Meanwhile, the I/O interface that it connects with microprocessor adopts the high speed serial connection way,so have simplified the design of hardware circuit.This paper on the basis of recommending structure and function of the chip provides a kind of hardware and software design of analog signal output board of electric signals; at the same time,the paper provides the anti-interference measure.

关 键 词：DAC8420芯片 D/A转换器 模拟量输出卡 

分 类 号：TP334.7[自动化与计算机技术—计算机系统结构]