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5Gb/s光接收机前端放大电路的设计 被引量：2

Design of 5 Gb/s Front-End Amplifier of Optical Receiver
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摘要 利用SMIC0.18μm CMOS工艺设计了适用于同步数字光纤传输系统SONET OC-96(5Gb/s)的光接收机前端放大电路.跨阻放大器(TIA)采用全差分结构,利用震荡反馈技术和可调节共源共栅(RGC)结构来增加其带宽.限幅放大器(LA)采用有源电感反馈和改进的Cherry-Hooper以获得高的增益带宽积.HSPICE仿真结果表明光接收机前端放大电路具有92dBΩ的中频增益,3.7GHz的-3dB带宽,对于输入电流峰峰值从4μA到50μA变化时,50Ω负载线上的输出眼图限幅在550mV,核心电路功耗为60mW. An optical receiver front-end for SONET OC-96 system was analyzed and designed in a SMIC 0.18μm CMOS process. The transimpedance amplifier （TIA） takes a fully differential configuration, feedback oscillation technique, and regulated cascode （RGC） input stage for bandwidth enhancement. The limiting amplifier（L/k） uses active inductor peaking and modified Cherry-Hooper schemes to pull up the high-frequency band. The front-end circuit achieved 3.7GHz bandwidth, 92dB voltage gain and dissipates 60mW from 1.8V power supply. A good eye diagram can be achieved with constant 550mV output swing.
作者 白涛 韩良
机构地区 华东光电集成器件研究所 哈尔滨工业大学微电子中心
出处 《微电子学与计算机》 CSCD 北大核心 2008年第5期189-192,共4页 Microelectronics & Computer
关键词 前端放大电路 跨阻放大器 限幅放大器 可调节共源共栅 有源电感 Cherry-Hooper front-end Amplifier TIA LA RGC active inductor Cherry-Hooper
分类号 TN432 [电子电信—微电子学与固体电子学]
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参考文献5

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共引文献3

同被引文献12

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微电子学与计算机
2008年 第5期

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