Title :
0.18-μm CMOS 10-Gb/s multiplexer/demultiplexer ICs using current mode logic with tolerance to threshold voltage fluctuation
Author :
Tanabe, Akira ; Umetani, Masato ; Fujiwara, Ikuo ; Ogura, Takayuki ; Kataoka, Kotaro ; Okihara, Masao ; Sakuraba, Hiroshi ; Endoh, Tetsuo ; Masuoka, Fujio
Author_Institution :
Silicon Syst. Res. Labs., NEC Corp., Kanagawa, Japan
fDate :
6/1/2001 12:00:00 AM
Abstract :
A feedback MOS current mode logic (MCML) is proposed for the high-speed operation of CMOS transistors. This logic is more tolerant to the threshold voltage fluctuation than the conventional MCML and is suitable for gigahertz operation of deep-submicron CMOS transistors. Using this logic, 8:1 multiplexer (MUX) and 1:8 demultiplexer (DEMUX) ICs for optical-fiber-link systems have been fabricated with 0.18-μm CMOS transistors. The ICs are faster than conventional CMOS MUX and DEMUX ICs and their power consumption is less than 1/4 of that of the conventional 10-Gb/s MUX and DEMUX ICs made using Si bipolar or GaAs transistors
Keywords :
CMOS digital integrated circuits; CMOS logic circuits; circuit feedback; current-mode logic; demultiplexing equipment; digital communication; high-speed integrated circuits; multiplexing equipment; optical communication equipment; 0.18 micron; 10 Gbit/s; CMOS demultiplexer IC; CMOS multiplexer IC; CMOS transistors; DEMUX IC; MUX IC; current mode logic; deep-submicron CMOSFETs; feedback MOS CML; gigahertz operation; high-speed operation; optical fiber link systems; threshold voltage fluctuation tolerance; Bipolar transistors; CMOS logic circuits; Energy consumption; Fluctuations; Frequency; Gallium arsenide; High speed optical techniques; Multiplexing; Optical feedback; Threshold voltage;
Journal_Title :
Solid-State Circuits, IEEE Journal of
