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Design of Low-Cost Transimpedance Amplifier for Optical Receiver
Mohammad Marufuzzaman,Mamun Bin Ibne Reaz,Lye Suet Yeng,Labonnah Farzana Rahman,Torikul Islam Badal 한국전기전자재료학회 2018 Transactions on Electrical and Electronic Material Vol.19 No.1
The transimpedance amplifi er (TIA) is the most favorable and effi cient choice for the front-end preamplifi er in optical fi bercommunication systems. High gain and low input noise to amplify weak and susceptible input signals are the two majoradvantages of TIAs. Moreover, to realize a low-cost solution, a TIA should be implemented in a complementary metal-oxidesemiconductor (CMOS) process and should occupy a small area. This paper presents a low-cost TIA for optical receiversin a 180-nm CMOS process. The proposed TIA combines both open-loop and closed-loop topologies. A capacitance isolationmethod is used for noise and bandwidth optimization. Finally, capacitive peaking is used for bandwidth enhancement. Moreover, the proposed TIA is designed without using any inductors for bandwidth enhancement as well as for reducingchip area. Simulation results show that the proposed TIA works up to a frequency of 2.2 GHz with a transimpedance gainof 54.4 dBΩ. The TIA consumes only 19.7 mW with a supply voltage of 1.8 V, and the active area of the proposed circuitis only 0.003 mm 2 .
Advancement of CMOS Transimpedance Amplifier for Optical Receiver
Md. Torikul Islam Badal,Mamun Bin Ibne Reaz,Lye Suet Yeng,Mohammad Arif Sobhan Bhuiyan,Fahmida Haque 한국전기전자재료학회 2019 Transactions on Electrical and Electronic Material Vol.20 No.2
Transimpedance amplifi er (TIA) is an essential component of optical receivers, and this type of amplifi er converts the photocurrent to a voltage signal. The overall performance of the optical receiver greatly depends on the performance of this component. Low-power, low-noise, and compact TIA has been realized in current development in CMOS technology. The high demands of an optical receiver has led to the optimization and development of the TIA designed specifi cations. However, the conventional CMOS TIA design is limited mainly because of its dependency on input node capacitance. In this article, the advancement of TIAs in data communication and instrumentation based on diff erent design architectures and performances is discussed. This review will serve as a comparative study and reference for designing fully integrated CMOS TIA for future optical receivers.