Low power and noise tolerant 20 Gb/s CMOS TIA for short-distance optical interconnect

In this paper we present the design of a low power and noise tolerant 20 Gb/s differential TransImpedance Amplifier (TIA) in 0.1 /spl mu/m CMOS technology. The target application is short distance optical interconnect (<1 meter). A single ended structure is first proposed and extended to a differential structure. The simulation results show that significant improvements can be obtained by our differential derived structure in terms of power supply noise rejection compared to the conventional use of a dummy differential circuit.