Transconductance feedback amplifier configuration exhibiting bandwidth-independent voltage gain

被引：6
|
作者：
Wilson, B [1 ]
机构：
[1] Univ Manchester, Inst Sci & Technol, Dept Elect Engn & Elect, Manchester M60 1QD, Lancs, England
来源：
IEE PROCEEDINGS-CIRCUITS DEVICES AND SYSTEMS | 1999年 / 146卷 / 05期
关键词：
D O I：
10.1049/ip-cds:19990543
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：
Gain-bandwidth independence is potentially available in all dominant-pole single-loop feedback amplifier configurations except those in which the Forward gain element type is identical to the overall amplifier configuration Ln particular, feedback derived from a potential divider around a transconductance amplifier generates bandwidth-independent voltage gain along with optimum input loading conditions that can be attained practically with relatively few modifications to a standard 3-stage voltage operational amplifier architecture. Detailed simulation using a generic 741 operational amplifier circuit confirms the analytical predictions.
引用
收藏
页码：242 / 248
页数：7
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