【摘要】 ispPAC2 0可编程模拟器件内含运算放大器、比较器、8位D/A转换器 ,通过编程可实现放大器、有源滤波器、方波发生器等模拟电路单元的设计。本文利用ispPAC2 0的有效资源 ,将其与CPLDisp10 3 2结合实现了可编程计数式ADC的设计。实验结果表明可编程计数式ADC可方便的嵌入到电子系统中。可编程计数式ADC是可编程模拟器件和可编程逻辑器件典型应用之一。文中给出的设计方案合理 ,测试指标符合要求 ,有很好的应用价值更多还原

【Abstract】 ispPAC20 is an analog programmable device. In it, operation amplifier, comparator and 8bits D/A converter are contained. By using the analog programmable device, amplifier, active filter and square wave generator can be designed. Also the analog programmable device is combined with isp1032E70-LJ84 to implement the countable A/D converter. The results of implementing show the programmable and countable A/D converter can be embedded in electronic system. The countable A/D converter is a typical application of analog programmable device and programmable logic device. The design given by the paper is reasonable, the performance of the countable A/D converter can satisfy the requirement. It is worthy of application.更多还原