4-channel,40 Gb/s front-end amplifier for parallel optical receiver in 0.18 μm CMOS  

作　　者：CHEN YingMei ZHU Lei ZHANG Li LI Wei 

机构地区：[1]Institute of Radio Frequency-& Optoelectronic-Integrated Circuits,Southeast University

出　　处：《Science China(Information Sciences)》2013年第4期162-168,共7页中国科学（信息科学）（英文版）

基　　金：supported by National High-tech R&D Program of China (863 Program) (Grant No. 2011AA010301);National Natural Science Foundation of China (Grant No. 60976029)

摘　　要：This paper proposed a 4-channel parallel 40 Gb/s front-end amplifier （FEA） in optical receiver for parallel optical transmission system. A novel enhancement type regulated cascade （ETRGC） configuration with an active inductor is originated in this paper for the transimpedance amplifier to significantly increase the bandwidth. The technique of three-order interleaving active feedback expands the bandwidth of the gain stage of transimpedance amplifier and limiting amplifier. Experimental results show that the output swing is 210 mV （Vpp） when the input voltage varies from 5 mV to 500 mV. The power consumption of the 4-channel parallel 40 Gb/s front-end amplifier （FEA） is 370 mW with 1.8 V power supply and the chip area is 650 μm× 1300 μm.This paper proposed a 4-channel parallel 40 Gb/s front-end amplifier （FEA） in optical receiver for parallel optical transmission system. A novel enhancement type regulated cascade （ETRGC） configuration with an active inductor is originated in this paper for the transimpedance amplifier to significantly increase the bandwidth. The technique of three-order interleaving active feedback expands the bandwidth of the gain stage of transimpedance amplifier and limiting amplifier. Experimental results show that the output swing is 210 mV （Vpp） when the input voltage varies from 5 mV to 500 mV. The power consumption of the 4-channel parallel 40 Gb/s front-end amplifier （FEA） is 370 mW with 1.8 V power supply and the chip area is 650 μm× 1300 μm.

关 键 词：enhancement type regulated cascade （ETRGC） active inductor transimpedance amplifier limiting amplifier three-order interleaving active feedback 

分 类 号：TN722[电子电信—电路与系统]