Title :
A 72dBO 11.43mA novel CMOS regulated cascode TIA for 3.125Gb/s optical communications
Author :
Young-Ho Kim ; Sang-Soo Lee
Author_Institution :
Dept. of Opt. Internet Res., Electron. & Telecommun. Res. Inst. (ETRI), Daejeon, South Korea
Abstract :
This paper presents the design of a 3.125Gbps CMOS transimpedance amplifier (TIA) with a novel regulated cascode (RGC) preamplifier. The proposed RGC circuit isolates the large input parasitic capacitance and then improves the bandwidth limitation. This TIA was fabricated in 1P6M 0.18um CMOS process and consumes 11.43mA from 1.8V supply voltage. The TIA achieves a gain of 72dBΩ and 2.4GHz bandwidth when connected to a 0.5pF photodiode.
Keywords :
CMOS integrated circuits; UHF amplifiers; capacitance; operational amplifiers; optical communication equipment; CMOS RGC preamplifier; CMOS transimpedance amplifier; RGC circuit; TIA; bit rate 3.125 Gbit/s; current 11.43 mA; frequency 2.4 GHz; optical communication; parasitic capacitance; photodiode; regulated cascode preamplifier; size 0.18 mum; voltage 1.8 V; Abstracts; CMOS integrated circuits; Capacitance; Current density; Noise; Photodiodes; Radio frequency;
Conference_Titel :
SOC Conference (SOCC), 2013 IEEE 26th International
Conference_Location :
Erlangen
DOI :
10.1109/SOCC.2013.6749662
