Title :
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
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;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing (WiCOM), 2012 8th International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-61284-684-2
DOI :
10.1109/WiCOM.2012.6478264
