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Design and Fabrication of 0.25 μm CMOS TIA Using Active Inductor Shunt Peaking  

Cho In-Ho (Ace Technologies Corp.)
Lim Yeongseog (School of Electronic, Computer and Telecommunications Engineering, Chonnam National University)
Publication Information
Abstract
This paper presents technique of wideband TIA for optical communication systems using TSMC 0.25 ${\mu}m$ CMOS RF-Mixed mode. In order to improve bandwidth characteristics of an TIA, we use active inductor shunt peaking to cascode and common-source configuration. The result shows the 37 mW and 45 mW power dissipation with 2.5 V bias and 61 dB$\Omega$ and 61.4 dB$\Omega$ transimpedance gain. And the -3 dB bandwidth of the TIA is enhanced from 0.8 GHz to 1.45 GHz in cascode and 0.61 GHz to 0.9 GHz in common-source. And the input noise current density is $5 pA/\sqrt{Hz}$ and $4.5 pA/\sqrt{Hz}$, and -10 dB out put return loss is obtained in 1.45 GHz. The total size of the chip is $1150{\times}940{\mu}m^2$.
Keywords
Transimpedance Amplifier(TIA); CMOS; Active Inductor; Shunt Peaking;
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