11位流水线模数转换器设计  

Design of 11 bit Pipeline ADC

作　　者：徐晋[1] 樊琦 龙建忠[1] 

机构地区：[1]四川大学锦江学院,成都620860 [2]深圳市芯海科技有限公司,深圳518067

出　　处：《自动化与仪器仪表》2013年第4期58-59,62,共3页Automation & Instrumentation

摘　　要：基于GSMC 0.13um IBLP Dual Gate E-flash工艺设计了一个11位流水线结构的模数转换器(ADC)。该ADC采样频率500KHz,工作电压范围2.7-3.6V,3.3V供电时,工作电流小于500uA。该电路包括包括参考电压电路、偏置电路、两相非交叠时钟电路、偏置电路、前级转换电路、后级转换电路等。经模拟仿真,该ADC无杂散动态范围大于70dB,SNDR大于60dB。A 11 bit Analog-to-Digital Converter （ADC） is designed based on GSMC 0.13um IBLP Dual Gate E-flash Process. The Sampling Rate of this ADC is 500kHz, supply power can range from 2.7V to 3.6V, when the supply set as 3.3V, the work current is less than 500 uA. This ADC consists of reference voltage circuit, supply circuit Two-Phase Nonoverlop clock circuit, front stage conversion circuit ,after stage conversion circuit and so on. The SFDR of this ADC is more than 70dB,and SNDR is more than 60dB in simulation.

关 键 词：流水线 模数转换器 分辨率 无杂散动态范围 

分 类 号：TM492[电气工程—电器]