A novel fully differential telescopic operational transconductance amplifier

被引：0
|
作者：
李天望 [1 ]
叶波 [2 ]
江金光 [1 ]
机构：
[1] Department of Integrated Circuits and Communication Software,International School of Software,Wuhan University
[2] Faculty of Computer & Information Engineering,Shanghai University of Electric Power
来源：
Journal of Semiconductors | 2009年 / 30卷 / 08期
关键词：
OTA; fully differential; unit-gain bandwidth; slew rate;
D O I：
暂无
中图分类号：
TN722 [放大器];
学科分类号：
080902 ;
摘要：
A novel fully differential telescopic operational transconductance amplifier (OTA) is proposed. An additional PMOS differential pair is introduced to improve the unit-gain bandwidth of the telescopic amplifier. At the same time, the slew rate is enhanced by the auxiliary slew rate boost circuits. The proposed OTA is designed in a 0.18 μm CMOS process. Simulation results show that there is a 49% improvement in the unit-gain bandwidth compared to that of a conventional OTA; moreover, the DC gain and the slew rate are also enhanced.
引用
收藏
页码：116 / 118
页数：3
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