Low-voltage digitally controlled fully differential current conveyor

被引：80
|
作者：
Mahmoud, SA [1 ]
Hashiesh, MA
Soliman, AM
机构：
[1] Cairo Univ, Fayoum Branch, Dept Elect Engn, Al Fayyum 63111, Egypt
[2] Cairo Univ, Dept Elect Commun Engn, Cairo 12613, Egypt
来源：
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS | 2005年 / 52卷 / 10期
关键词：
current conveyor (CC); current division network (CDN); current gain; fully differential buffer;
D O I：
10.1109/TCSI.2005.852922
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：
Design and simulation of a digitally controlled CMOS fully differential current conveyor (DCFDCC) is presented. A novel current division network (CDN) is used to provide the digital control of the current gain between terminals and Z of this DCFDCC. The proposed DCFDCC operates under low supply voltage of +/- 1.5 V. The realization of the DCFDCC using the new CDN is presented by two approaches. First approach has linearly proportional current gain with the digitally controlled parameter of the CDN, while the second approach exhibits current gain between terminalsX and Z greater than, or equal to, one. Applications of the DCFDCC in realizing second order universal active filter and variable gain amplifier are given. PSPICE simulation confirms the performance of the proposed blocks and its applications.
引用
收藏
页码：2055 / 2064
页数：10
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