A 60-Gb/s 0.7-V 10-mW monolithic transformer-coupled 2:1 multiplexer in 90 nm CMOS

A completely integrated transformer-coupled 2:1 multiplexer for high-speed operation in 90 nm bulk CMOS is presented. The multiplexer uses a monolithic transformer to couple the clock to the multiplexer core. This circuit technique allows the 2:1 multiplexer to operate from a single 0.7 V supply voltage consuming 10 mW while achieving data rates of 60 Gb/s.