A 57dBOmega 1GHz CMOS Front-End Preamplifier for Optical Receivers

Author

Liu Ru-qing ; Wang Zhu-ping ; Tian Jia ; Meng Zhe

Author_Institution

Acad. of Opto-Electron., Beijing, China

fYear

2012

fDate

21-23 Sept. 2012

Firstpage

1

Lastpage

4

Abstract

A front-end preamplifier consisted of transimpedance amplifier (TIA) core, single-to-differential converter (STDC) and output buffer(OB) is proposed in this paper. The goal is to realize a low cost and high performance preamplifier to be used in the optical receiver modules based on the standard 0.5um complementary metal oxide semiconductor (CMOS) process. The regulated cascade (RGC) input structure followed by a gain stage and a resistive feedback is employed in the TIA core. The measurement results show that the chip achieves a transimpedance gain of 57.56dBΩ, -3dB bandwidth of 1.04GHz, and 18.33pA/sqrt(Hz) input referred noise current. Under a 3.3V supply voltage, the front-end TIA consumes 73.38mW and the total chip area is 941.6 × 1042.2um² including an output buffer and testing pads.

Keywords

CMOS analogue integrated circuits; circuit feedback; convertors; integrated circuit noise; operational amplifiers; optical receivers; preamplifiers; CMOS front-end preamplifier; CMOS process; OB; RGC input structure; STDC; TIA core; complementary metal oxide semiconductor process; frequency 1 GHz; frequency 1.04 GHz; front-end TIA; gain stage; high performance preamplifier; noise current; optical receiver module; output buffer; power 73.38 mW; regulated cascade; resistive feedback; single-to-differential converter; size 0.5 mum; transimpedance amplifier; transimpedance gain; voltage 3.3 V; Bandwidth; CMOS integrated circuits; Current measurement; Noise; Optical receivers; Preamplifiers; Semiconductor device measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications, Networking and Mobile Computing (WiCOM), 2012 8th International Conference on

Conference_Location

Shanghai

ISSN

2161-9646

Print_ISBN

978-1-61284-684-2

Type

conf

DOI

10.1109/WiCOM.2012.6478264

Filename

6478264