Low voltage digitally controlled CMOS current conveyor

被引：30
作者：
El-Adawy, AA
Soliman, AM [1 ]
Elwan, HO
机构：
[1] Cairo Univ, Elect & Commun Engn Dept, Cairo, Egypt
[2] Ohio State Univ, Dept Elect Engn, Columbus, OH 43210 USA
来源：
AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS | 2002年 / 56卷 / 03期
关键词：
CMOS current conveyor; filters;
D O I：
10.1078/1434-8411-54100086
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this paper, a digitally controlled current conveyor (DCCC) is presented. The proposed DCCC is based on rail-to-rail folded cascode implementation with a current division network (CDN). The CDN is used to provide control on the current gain of the DCCC. The CDN uses a novel current division technique based on differential pairs. The proposed DCCC can operate from +/- 1.5 V supply voltages. Applications of the proposed DCCC such as variable gain amplifiers (VGA) and digitally tuned filters have been investigated. PSpice simulations based on the AMI 1.2 mum N-well level 3 parameters are in agreement with the presented work.
引用
收藏
页码：137 / 144
页数：8
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