3 ) a 16 - bits high speed a / d conversion device was used , it quicken a / d conversion speed ten times 3 )采用16位高速a d转换器完成模数转换，使模数转换速度提高了10倍。
First designs the high precision reading system of accelerators in the kernel of adc & fpga 首先设计了以高分辨率模数转换器adc和fpga为核心的高精度加速度计数字读出电路。
A fast 12 - bit analog - to - digital converter ( adc12 ) built in the mpu is used to sample the data from the external and inner sensors 利用微处理器adc12模数转换器实现对外接传感器和内置传感器的数据采集。
A transducer designed for a given range of input voltages that produces a larger range of output voltages 就模拟输入而言，使模数转换器不能区别其变化的超范围的绝对电压值。超载值对于正输入和负输入可能不同。
A 16 - bit high speed a / d converter - ad976a is selected in this system , which brings high speed and accords with the requirement of system design 系统选用16 - bit高速模数转换芯片ad976a ，数据采集高速准确，符合系统设计要求。
A novel hard ip core of analog - to - digital converter is achieved , with the transistor level circuit and physical layout designed in detail 针对这一需求，本文完成了一种模数转换器硬ip核的晶体管级电路设计以及物理版图布局设计。
Were much needed an a / d testing theory in frequency - field on the lain of digital signal processing was given 在总结已有高速模数转换器件性能测试方法的基础上给出一套基于频域数字信号处理理论的高速模数转换电路工程应用的有效评估方法。
An a / d testing theory in frequency - field on the basis of digital signal processing is given . this method is simple and has suitable precision testing 在此基础上给出一套基于频域数字信号处理理论的高速模数转换电路工程应用的有效评估方法。
The resolution depends upon the size of the word used to represent the amplitude of a sampling sound and is determined by the resolution of the adc and dac 分辨率取决于表示采样声音振幅的字组大小，并由模数转换器和数模转换器的分辨率所决定。
It makes deep researchment in the problem of high speed and high resolution adc design ， and it tests and debugs the circuits 在具体实现方面，主要对高速高精度模数转换电路设计中存在的问题和关键环节进行了详细研究，并对具体电路进行了测试和调试。
