Title :
2.5Gb/s CMOS RGC transimpedance amplifier
Author :
Liang, Han ; Yizheng, Ye ; Tao, Bai
Author_Institution :
Microelectron. Center, Harbin Inst. of Technol., Harbin
Abstract :
A novel low noise CMOS regulated cascode (RGC) transimpedance amplifier, which can be used in the front-end of 2.5 Gbit/s optical communication system, is presented. Active inductor peaking technique, active feedback and source follower are used to improve the -3 dB bandwidth. Simulation results using 0.18 mum standard CMOS process show the transimpedance gain is 71.51 dBOmega, the -3 dB bandwidth is 2.2 GHz, and the average noise current spectral density is 8.3 pA/radicHz. When the input current is 35 muA, the output eye-diagram voltage amplitude is 92 mV, and the eye-diagram is clean. The power consumption is 10 mW.
Keywords :
CMOS integrated circuits; inductors; low noise amplifiers; optical communication; CMOS regulated cascode transimpedance amplifier; active feedback; active inductor peaking technique; average noise current spectral density; bandwidth 2.2 GHz; bit rate 2.5 Gbit/s; eye-diagram voltage amplitude; optical communication system; power 10 mW; power consumption; source follower; voltage 92 mV; Active inductors; Bandwidth; CMOS process; Low-noise amplifiers; Optical amplifiers; Optical feedback; Optical fiber communication; Optical noise; Semiconductor optical amplifiers; Voltage; CMOS; active feedback; active inductor; regulated cascode(RGC); transimpedance amplifier;
Conference_Titel :
Microelectronics, 2007. ICM 2007. Internatonal Conference on
Conference_Location :
Cairo
Print_ISBN :
978-1-4244-1846-6
Electronic_ISBN :
978-1-4244-1847-3
DOI :
10.1109/ICM.2007.4497653
