A novel transimpedance amplifier for 10 Gbit/s optical communication system

Author

Huang, Taiyi ; Zhang, Qihui ; Zhang, Weifeng

Author_Institution

Sch. of Phys. & Electron., Henan Univ., Kaifeng, China

fYear

2011

fDate

25-28 Oct. 2011

Firstpage

843

Lastpage

846

Abstract

A novel wideband CMOS Regulated Cascode (RGC) transimpedance amplifier, which can be used in the front-end of 10 Gb/s optical communication system, is implemented using a 0.18 μm CMOS process. Resistive feedback, source follower and capacitive degeneration techniques are used to increase bandwidth. A converter with single-ended input and differential-output is used to connect to the next stage. The simulation results show that the transimpedance gain is 40 dBΩ, the bandwidth is 8.69 GHz and the average noise current spectral density is 96.48 pA/√Hz. The output eye-diagram voltage amplitude is 2.05 mV when the input current magnitude is 50 μA.

Keywords

CMOS integrated circuits; operational amplifiers; optical communication; wideband amplifiers; CMOS process; bandwidth 8.69 GHz; capacitive degeneration techniques; current 50 muA; optical communication system; resistive feedback; size 0.18 mum; source follower; voltage 2.05 mV; wideband CMOS regulated cascode transimpedance amplifier; CMOS integrated circuits; CMOS technology; RGC; capacitive degeneration; converter; resistive feedback; transimpedance amplifier;

fLanguage

English

Publisher

ieee

Conference_Titel

ASIC (ASICON), 2011 IEEE 9th International Conference on

Conference_Location

Xiamen

ISSN

2162-7541

Print_ISBN

978-1-61284-192-2

Electronic_ISBN

2162-7541

Type

conf

DOI

10.1109/ASICON.2011.6157336

Filename

6157336