An inductance enhancement technique and its application to a shunt-peaked 2.5 gb/s transimpedance amplifier design

Abstract

This brief presents a bandwidth enhancement technique that is applicable to gigahertz-range broadband circuits. Using the inductance, enhancement technique proposed in this brief, a 2.5-Gb/s transimpedance amplifier (TIA) has been implemented based on a 0.35-mum CMOS technology. With the input noise reduction, the TIA with the proposed active inductor loads improves the overall system performances including more that 90% increase in bandwidth. Measurements show the bandwidth of 1.73 GHz, transimpedance gain of 68 dBOmega, and the averaged input referred noise current of 3.3 pA/rootHz, respectively, while dissipating M mW of de power.