高速低功耗A/D转换技术设计  

Design of High Speed and Low Power Dissipation A/D Conversion Technology

作　　者：封宇 Feng Yu(Lianyungang Jari Electronic Company Limited,Jiangsu Lianyungang 222061)

机构地区：[1]连云港杰瑞电子有限公司,江苏连云港222061

出　　处：《电子质量》2021年第12期34-44,71,共12页Electronics Quality

摘　　要：文章针对A/D转换的原理和特点进行分析,介绍了Nyquist频率ADC、以及对滤波要求更低的过采样频率ADC,同时设计∑-△A/D转换器的电路实现技术,包括采样开关、积分器、低功耗比较器、高精度运放、数字抽取滤波器等,进而通过仿真验证了高速低功耗的∑-△A/D转换技术的可实现性。The article analyzes the principles and characteristics of A/D conversion,introduces the Nyquist frequency ADC,and the oversampling frequency ADC with lower filtering requirements,and designs the circuit implementation technology of the ∑-△A/D converter,including Sampling switches,integrators,low-power comparators,high-precision operational amplifiers,digital decimation filters,etc,have been simulated to verify the feasibility of high-speed and low-power∑-△A/D conversion technology.

关 键 词：∑-△A/D转换 Nyquist频率 过采样频率 高速低功耗 

分 类 号：TN792[电子电信—电路与系统]