基于百兆以太网的双通道流水线ADC设计与研究

4)关键电路方向。对流水线ADC的系统架构及相关参数设计，按照相关参数指标要求，对非理想因素分析，对流水线整体电路仿真，在采样保持电路设计方面主要是栅压自举开关，增益自举运算放大器，共模反馈电路和噪声分析与采样电容值的选取的设计。其他模块电路设计，针对双通道流水线ADC失配误差校准与实现，建立失配误差模型，分析误差校准原理，失配误差后台校准算法仿真验证，双通道流水线ADC的仿真与实现，此外分频电路设计具备参考通道的双通道流水线ADC的仿真与实现。关键词：双通道流水线ADC,数字校准技术，模数转换器AbstractWith the development of society and economy,the demand foranalog-digital converters is getting higher and higher.Thehigh-performance ADC relies on powerful digital calibration to completethe conversion tasks.Therefore,it is more widely used.For now,ADCHigh-speed,high-precision performance is increasingly important inwireless communications.Dual-channel pipelined ADCs need to reduce powerconsumption area if they improve performance.However,the prevalence ofdual-channel pipeline ADC is still the trend.Although the progress oftechnology,but the design of high-performance analog circuits still havea lot of difficulties.This article through theoretical analysis and simulationverification,based on Fast Ethernet technology for dual-channel pipelineADC design and research to achieve high-speed dual-channel high-precisionADC,and try to optimize the ADC pipeline and digital correction.Mainlyfrom the following aspects to discuss and analyze:1)analog converter.Studied and introduced the static performanceindex and dynamic performance index of A /D converter in details.According to the structure classification of A/D converter,the full