Differential current mode serial link for 2 Gb/s in GaAs technology

Abstract

Today's data communication systems are demanding increasing off-chip data rates. To satisfy this demand, high-speed serial links are used, saving area and power dissipation compared to highly parallel buses. However, power dissipation and noise generated by this system is still a critical issue. In this article, a novel approach using differential current mode is presented, which combines low power dissipation with low noise generated due to the reduced power transmission.