Modeling and nonlinear analysis of 14 bit 100MS/s pipelined ADC  

作　　者：郑浩 fan xiangning 

机构地区：[1]Institute of RF&OE-ICs, School of Information Science and Engineering, Southeast University, Nanjing 210096, P. R. China

出　　处：《High Technology Letters》2018年第1期36-45,共10页高技术通讯（英文版）

基　　金：Supported by the National Basic Research Program of China(No.2010CB327404)

摘　　要：In this paper,detailed models of 14-bit 100 MS/s pipelined analog-to-digital converter( ADC)are presented. In order to help design of ADC system,blocks for pipelined ADC and disturbance sources are carefully analyzed. Critical parameters,such as capacitor mismatch,clock jitter are proposed and simulated. The pipelined ADC system is divided into five parts,clock generator,sample and hold( S/H) circuit,multiplying digital-to-analog converters( MDAC),backend,and digital correction. These blocks introduce several interferences,which attenuate performance of pipelined ADC severely. Modeling and simulations of these disturbance sources are presented particularly. A new model of S/H is introduced. Results derived from simulations can supervise design and optimization of the ADC system.In this paper,detailed models of 14-bit 100 MS/s pipelined analog-to-digital converter( ADC)are presented. In order to help design of ADC system,blocks for pipelined ADC and disturbance sources are carefully analyzed. Critical parameters,such as capacitor mismatch,clock jitter are proposed and simulated. The pipelined ADC system is divided into five parts,clock generator,sample and hold( S/H) circuit,multiplying digital-to-analog converters( MDAC),backend,and digital correction. These blocks introduce several interferences,which attenuate performance of pipelined ADC severely. Modeling and simulations of these disturbance sources are presented particularly. A new model of S/H is introduced. Results derived from simulations can supervise design and optimization of the ADC system.

关 键 词：capacitor MISMATCH OFFSET clock JITTER flip-around sample and HOLD (S/H) SECOND-ORDER response 

分 类 号：TN792[电子电信—电路与系统]