An 8.9mW 25Gb/s inductorless 1:4 DEMUX in 90nm CMOS

A low-power inductorless 1:4 DEMUX in 90 nm CMOS is presented. It is capable of operating at 25 Gb/s with a power supply voltage of 1.05 V, and the power consumption is 8.9 mW. Its area is 29 × 40 ¿m². The DEMUX consists primarily of latches in differential pseudo-NMOS logic style. This logic style has a near-rail-to-rail logic swing and is much more scalable under low V_dd than the current-mode logic, commonly used for high-performance SerDes. It is also compatible with the conventional CMOS logic, and direct connection with CMOS logic gates is possible without logic level conversion. The low power, small footprint, and reasonable speed could be beneficial for chip-to-chip communication within a multi-chip module.