A wideband CMOS current-mode operational amplifier and its use for band-pass filter realization

被引：4
|
作者：
Altun, Mustafa [1 ]
Kuntman, Hakan [1 ]
机构：
[1] Istanbul Tech Univ, Fac Elect & Elect Engn, Dept Elect & Commun Engn, TR-34469 Istanbul, Turkey
来源：
2006 INTERNATIONAL CONFERENCE ON APPLIED ELECTRONICS | 2006年
关键词：
D O I：
10.1109/AE.2006.4382949
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 CMOS current-mode operational amplifier (COA) based on a novel, class A input stage and a folded-cascode output stage is presented. The amplifier provides a 95 dB DC gain and a gain-bandwidth product exceeding 200 MHz. The COA is operated under +/-1.5 V voltage supplies and designed with 0.35-mu m CMOS process. Additionally, COA-based band-pass filter is realized. In a multiple feedback band-pass filter topology, COA can be used instead of voltage amplifier to enhance the bandwidth of operation. The center frequency of the filter is 10 MHz.
引用
收藏
页码：3 / 6
页数：4
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