| 一种新的套筒式全差分跨导放大器设计 |
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| 引用本文： | 李天望,叶波,江金光. 一种新的套筒式全差分跨导放大器设计[J]. 半导体学报, 2009, 30(8): 085002-3 |
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| 作者姓名： | 李天望 叶波 江金光 |
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| 作者单位： | Department;Integrated;Circuits;Communication;Software;International;School;Wuhan;University;Faculty;Computer;Information;Engineering;Shanghai;Electric;Power; |
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| 基金项目： | 国家高技术研究发展计划 |
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| 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.
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| 关 键 词： | 运算跨导放大器 全差分 CMOS工艺 单位增益 增益带宽 PMOS管 OTA 升压电路 |
| 修稿时间： | 2009-04-01 |
A novel fully differential telescopic operational transconductance amplifier |
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| Li Tianwang,Ye Bo and Jiang Jinguang. A novel fully differential telescopic operational transconductance amplifier[J]. Chinese Journal of Semiconductors, 2009, 30(8): 085002-3 |
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| Authors: | Li Tianwang Ye Bo Jiang Jinguang |
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| Affiliation: | Department of Integrated Circuits and Communication Software, International School of Software, Wuhan University, Wuhan 430079, China;Faculty of Computer & Information Engineering, Shanghai University of Electric Power, Shanghai 200090, China;Department of Integrated Circuits and Communication Software, International School of Software, Wuhan University, Wuhan 430079, China |
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| Abstract: | 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 |
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| Keywords: | OTA fully differential unit-gain bandwidth slew rate |
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