Design and analysis of low-voltage current mode operational amplifier with differential-input and differential-output
學年 87
學期 1
出版(發表)日期 1998-10-01
作品名稱 Design and analysis of low-voltage current mode operational amplifier with differential-input and differential-output
作品名稱(其他語言)
著者 鄭國興; Cheng, Kuo-hsing; Wang, Huei-chi
單位 淡江大學電機工程學系
出版者 Taylor & Francis
著錄名稱、卷期、頁數 International journal of electronics 85(4), pp.443-453
摘要 In this work, a new CMOS current operational amplifier (COA) with fully differential input and differential output is proposed and analysed. The amplifier is implemented from a differential current mirror input transimpedance stage followed by a differential output transconductance gain stage. A differential mode design technique is proposed and used in the feedback circuit. This configuration is the current mode counterpart of the traditional voltage operational amplifier (VOA). The simulation results of the new COA are based upon the 0.5μm CMOS process and ±1.5V supply voltage. The new COA exhibits an open-loop differential gain of 51.71dB with the gain-bandwidth product 314MHz and a settling time of 14ns. The design and optimization guidelines of the new COA have been developed and analysed so that they can be applied to the design of high-performance COA.
關鍵字
語言 en
ISSN 0020-7217
期刊性質 國內
收錄於
產學合作
通訊作者
審稿制度
國別 TWN
公開徵稿
出版型式 ,電子版
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