Inductorless 8.9 mW 25 Gb/s 1:4 DEMUX and 4 mW 13 Gb/s 4:1 MUX in 90 nm CMOS

Takayuki Sekiguchi, Shuhei Amakawa, Noboru Ishihara, Kazuya Masu
2010 JSTS Journal of Semiconductor Technology and Science  
A low-power inductorless 1:4 DEMUX and a 4:1 MUX for a 90 nm CMOS are presented. The DEMUX can be operated at a speed of 25 Gb/s with the power supply voltage of 1.05 V, and the power consumption is 8.9 mW. The area of the DEMUX core is 29 × 40 μm 2 . The operation speed of the 4:1 MUX is 13 Gb/s at a power supply voltage of 1.2 V, and the power consumption is 4 mW. The area of the MUX core is 30 × 18 μm 2 . The MUX/DEMUX mainly consists of differential pseudo-NMOS. In these MUX/DEMUX circuits,
more » ... MUX/DEMUX circuits, logic swing is nearly rail-torail, and a low V dd . The component circuit is more scalable than a CML circuit, which is commonly used in a high-performance MUX/DEMUX. These MUX/ DEMUX circuits are compatible with conventional CMOS logic circuit, and it can be directly connected to CMOS logic gates without logic level conversion. Furthermore, the circuits are useful for core-to-core interconnection in the system LSI or chip-to-chip communication within a multi-chip module, because of its low power, small footprint, and reasonable operation speed. Index Terms-MUX, DEMUX, low-power, high-speed, CMOS logic circuit, pseudo-NMOS degree in electrical engineering from Gunma University, Gunma, in1981 and the Dr. Eng. Degree from Tokyo
doi:10.5573/jsts.2010.10.3.176 fatcat:hlcbp7kxrfgdnb7llujk2ahqqq