用ispPAC20和isp1032实现可编程逐次逼近式A/D转换器的研究

ispPAC20在系统可编程模拟器件集放大器、比较器、D／A转换器为一体、方便地完成放大器、有源滤波器、方波发生器等模拟电路单元的设计。还可将其与isp1032结合实现可编程的逐次逼近式A／D转换。本文给出了一个设计,它具有控制灵活，可8方便地嵌入到电子系统设计中的优点。

Research and Implementation of a Successive Approximation A/D Converter with ispPAC20 and isp1032

ispPAC20 is an analog programmable device. In it, operational amplifier, comparator, D/A convertor are contained. By using the analog programmable device, the amplifier, active filter, square wave generator can be designed. Also the analog programmable device can be conbined with isp1032 to implement a programmale successive approximation A/D convertor. The results of researching show that this kind of convertor can be embedded in electronic system conveniently. The design given by the paper is reasonable, its performance can enough satisfy the most requirements. So it is worthy of applications.