CONSTANT-BANDWIDTH CURRENT MODE OPERATIONAL-AMPLIFIER

被引：34

作者：

BRUUN, E

机构：

[1] Electronics Institute, Technical University of Denmark, DK-2800 Lyngby

来源：

ELECTRONICS LETTERS | 1991年 / 27卷 / 18期

关键词：

OPERATIONAL AMPLIFIERS; CURRENT CONVEYORS; CIRCUIT DESIGN;

D O I：

10.1049/el:19911045

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：

A current mode operational amplifier with a low impedance output for feedback connection is proposed and analysed theoretically. It is found to have a constant bandwidth independent of the gain in a closed loop configuration. This property is due to the loop gain independent of the closed loop gain. The amplifier is shown to be composed of a current conveyor input stage and another current conveyor output stage. Experimental results are presented to verify the constant bandwidth performance, and it is concluded that the proposed configuration is suitable for high frequency current mode amplifiers.

引用

页码：1673 / 1674

页数：2