基于Pipelined结构的电流型CMOS模数转换器电路设计  

Design of current-mode CMOS ADC circuit based on pipelined structure

作　　者：周选昌[1] 胡晓慧[1] 

机构地区：[1]浙江大学城市学院信息与电气工程学院,浙江杭州310015

出　　处：《浙江大学学报（理学版）》2013年第6期637-640,共4页Journal of Zhejiang University（Science Edition）

基　　金：国家自然科学基金资助项目(60971061);浙江省教育厅基金资助项目(Y201121012);杭州市重点学科建设资助项目

摘　　要：低功耗设计在当前超大规模集成电路中越来越重要.以电流信号为转换对象,利用电流传输理论,结合电流型CMOS电路设计技术,设计了8位基于Pipelined结构的ADC电路.结果表明,利用电流型CMOS电路可方便地实现电流信号的加减与放大运算,避免了使用传统Pipelined电路结构中的运算放大器电路,因此电路结构简单,可显著降低电路的功耗,提高转换速度,计算机仿真结果表明,电路功能正确.Low power design has played a more and more important role in VLSI nowadays . By taking the current signal as the convert object, an 8-bit ADC has been designed based on the Pipelined structure using the current transmission theory and the circuit design technology of current mode CMOS. The result shows that it is very easy to realize the addition and subtraction operation or amplification operation by using the technology of current mode CMOS circuit, instead of the operational amplifier circuit very commonly used in the traditional pipelined circuit structure. So the new circuit structure is simple. It＇s power consumption can be obviously reduced and it＇s conversion rate is improved. Computer simulation shows that the circuit function is correct.

关 键 词：PIPELINED 电流型CMOS 模数转换器(ADC) 

分 类 号：TN432[电子电信—微电子学与固体电子学]