A CMOS circuit design of a loss of signal and the application in optical receivers

Author

Qin, Feiyan ; Xu, Guoqing ; Li, Huiyun

Author_Institution

Shenzhen Inst. of Adv. Technol., Center for Automotive Electron., Chinese Univ. of Hong Kong, Shenzhen, China

fYear

2011

fDate

12-14 Dec. 2011

Firstpage

372

Lastpage

375

Abstract

This paper presents a new gigabit optical receiver structure with a circuit of loss of signal (LOS). The LOS is placed between the transimpedance amplifier (TIA) and the limiting amplifier (LA) of the optical receiver, so as to mute the data output signal when the input voltage falls below the expected threshold. The optical receiver provides a conversion gain up to 79.01dB Ω. and -3dB bandwidth of 3.85GHz from a dynamic range of 40μApp-200μApp input currents. When the input current amplitude is below 20μApp, the limiting amplifier is turned off by the LOS. The simulation results also show that the LOS circuit achieves 74.49% power saving when the input signal of the optical receiver is below 20μApp.

Keywords

CMOS integrated circuits; operational amplifiers; optical receivers; CMOS circuit design; LOS circuit; bandwidth 3.85 GHz; current 40 muA to 200 muA; gigabit optical receiver structure; loss of signal; transimpedance amplifier; Bandwidth; CMOS integrated circuits; Limiting; Optical fiber amplifiers; Optical losses; Optical receivers; Simulation; CMOS; Loss of signal (LOS); opitcal receivers; saving power; transimpedance amplifier;

fLanguage

English

Publisher

ieee

Conference_Titel

Integrated Circuits (ISIC), 2011 13th International Symposium on

Conference_Location

Singapore

Print_ISBN

978-1-61284-863-1

Type

conf

DOI

10.1109/ISICir.2011.6131974

Filename

6131974