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

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2 Author(s)
Yong-Hun Oh ; Electr. Eng. Dept., Inf. & Commun. Univ., Daejeon, South Korea ; Sang-Gug Lee

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-μm 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 dBΩ, and the averaged input referred noise current of 3.3 pA/√Hz, respectively, while dissipating 50 mW of dc power.

Published in:

IEEE Transactions on Circuits and Systems II: Express Briefs  (Volume:51 ,  Issue: 11 )