A 1.8V, 60dBΩ, 11 GHz transimpedance amplifier with strong immunity to input parasitic capacitance

Su Jeong Sim, Jeongmin Park, Sung Min Park

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Scopus citations

Abstract

A wideband differential transimpedance amplifier of an optical receiver is realized in a 0.18μm standard CMOS technology for the applications of Gigabit Ethernet data communication. The amplifier incorporates the regulated cascode (RGC) configuration to achieve strong immunity to large input parasitic capacitance and also exploits shunt inductive peaking technique to extend the bandwidth. Consequently, the RGC TIA has negligible effect on bandwidth from the large variation of photodiode capacitance. HSPICE simulations demonstrate the transimpedance gain of 60dBΩ, the -3dB bandwidth of 11GHz for 0.25pF photodiode capacitance, the average noise current spectral density of 18 pA/√Hz which corresponds to -14.4dBm optical sensitivity for 0.5A/W responsivity and 9dB extinction ration, and the DC power dissipation of 22mW from a single 1.8V supply.

Original languageEnglish
Title of host publicationISCAS 2006
Subtitle of host publication2006 IEEE International Symposium on Circuits and Systems, Proceedings
Pages5483-5486
Number of pages4
StatePublished - 2006
EventISCAS 2006: 2006 IEEE International Symposium on Circuits and Systems - Kos, Greece
Duration: 21 May 200624 May 2006

Publication series

NameProceedings - IEEE International Symposium on Circuits and Systems
ISSN (Print)0271-4310

Conference

ConferenceISCAS 2006: 2006 IEEE International Symposium on Circuits and Systems
Country/TerritoryGreece
CityKos
Period21/05/0624/05/06

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