40Gb/s 4:1 MUX/1:4 DEMUX in 90nm standard CMOS

A 1.2V 40Gbit/s 4:1 MUX and 1:4 DEMUX are implemented in a in 90nm digital-compatible standard CMOS technology. The MUX and DEMUX operate from a 1.2V supply and draw 110mA and 52mA, respectively. Experimental results show a clear eye opening of 300mV/sub pp/ for the MUX and that of 540mV/sub pp/ for the DEMUX at 40Gbit/s.