An inductor-less, 10Gbps trans-impedance amplifier operating at low supply-voltage

In this paper, a trans-impedance amplifier (TIA) for 10Gbps applications in 90nm CMOS technology is proposed. The proposed TIA is combination of a regulated-cascode (RGC) and a wide-swing cascode (WSC) structure. The focus in this work is to design a full-transistor structure which can operate at a low-supply voltage and high speed applications. Simulation results using 90nm CMOS technology parameters in HSPICE shows 48dBΩ trans-impedance gain, 7GHz bandwidth, 10mW power consumption for 0.8 supply voltage and 2.1μArms (or 25.1pA/√Hz) input referred noise.