Title :
A 12-Channel 60-Gb/s Transimpedance Amplifier and Limiting Amplifier Array for OPCB Applications
Author :
Oh, W.S. ; Park, K.
Author_Institution :
Korea Electron. Technol. Inst., Seongnam
Abstract :
In this paper, a 12-channel 60-Gb/s differential transimpedance amplifier (TIA) and limiting amplifier (LA) array is realized in a 0.18-mum standard CMOS technology for the applications of hybrid optical printed-circuit boards (OPCBs). To relax the design tradeoffs of the TIA between the bandwidth and the large photodiode capacitance, we exploit the advanced common-gate input stage. And active feedback technique with negative capacitance compensation has been implemented as a gain stage of the limiting amplifier. Post- layout simulations demonstrate that a single channel TIA and LA achieves 96-dB transimpedance gain, 5-Gb/s operations with 4.7-GHz bandwidth for 1-pF input parasitic capacitance, and -18-dBm optical sensitivity.
Keywords :
CMOS integrated circuits; differential amplifiers; photodiodes; printed circuits; CMOS technology; active feedback technique; bit rate 60 Gbit/s; common-gate input stage; differential transimpedance amplifier; frequency 4.7 GHz; hybrid optical printed-circuit boards; limiting amplifier array; negative capacitance compensation; optical printed-circuit boards; optical sensitivity; parasitic capacitance; photodiode capacitance; post-layout simulations; Bandwidth; CMOS technology; Differential amplifiers; Optical amplifiers; Optical arrays; Optical feedback; Optical sensors; Parasitic capacitance; Semiconductor optical amplifiers; Stimulated emission;
Conference_Titel :
Electronics, Circuits and Systems, 2007. ICECS 2007. 14th IEEE International Conference on
Conference_Location :
Marrakech
Print_ISBN :
978-1-4244-1377-5
Electronic_ISBN :
978-1-4244-1378-2
DOI :
10.1109/ICECS.2007.4510921
