CMOS光接收机宽带前置放大器的设计  

Design of 10Gb/s CMOS Preamplifier for Optical Receiver

作　　者：王晓霞[1] 王志功[1] 刘继顺[1] 

机构地区：[1]东南大学射频与光电集成电路研究所

出　　处：《中国集成电路》2006年第7期38-43,共6页China lntegrated Circuit

摘　　要：采用TSMC0.18μmCMOS工艺设计了光接收机宽带前置放大器。该前置放大器采用具有反馈特性的跨阻放大器实现,采用了RGC(RegulatedCasacoe)电路作为输入级,同时在电路中引入电感并联补偿的技术,以拓展前置放大器的带宽。仿真结果表明:1.8V单电压源供电情况下,电路功耗15.2mW,中频互阻增益为58.4dBΩ,-3dB带宽可达到10.2GHz,可工作在10Gb/s速率。A 10Gb/s CMOS preamplifier for optical receiver is designed in TSMC 0.18 μ m CMOS technology. This preamplifier employs a structure of transimpedance which has the characteristic of feedback circuit, using RGC （ Regulat achieving a broad bandwidth. The supply voltage is 1.SV. Simulation results indicated that the transimpedance gain is 58.4 dBΩ, the -3dB bandwidth is 10.2 GHz, and the operating bit rate is 10Gb/s.

关 键 词：前置放大器 RGC 并联补偿 CMOS工艺 

分 类 号：TN855[电子电信—信息与通信工程] TN722.71