BW extension in shunt feedback transimpedance amplifiers using negative miller capacitance

Sushmit Goswami, Tino Copani, Bert Vermeire, Hugh Barnaby

Research output: Chapter in Book/Report/Conference proceedingConference contribution

10 Scopus citations

Abstract

The large input capacitance seen at the input of transimpedance amplifiers (TIA) used in optical receivers is usually the primary BW bottleneck. A new approach for increasing the BW of shunt feedback TIA's utilizing negative miller capacitance is presented which incurs no significant power, area or noise penalty. With this technique, 10 Gb/s performance is made possible with the usage of just a single common emitter stage resulting in a low power and low area design. The differential TIA was implemented in a 0.18 μm SiGe BiCMOS technology and consumes 10.9 mA from a 1.8 V supply. It provides 495 Ω gain, 7.7 GHz BW and has a noise density of 5.8 pA / √Hz @ 1 GHz. The technique is not technology dependent and may be applied to CMOS designs as well.

Original languageEnglish (US)
Title of host publication2008 IEEE International Symposium on Circuits and Systems, ISCAS 2008
Pages61-64
Number of pages4
DOIs
StatePublished - 2008
Event2008 IEEE International Symposium on Circuits and Systems, ISCAS 2008 - Seattle, WA, United States
Duration: May 18 2008May 21 2008

Publication series

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

Other

Other2008 IEEE International Symposium on Circuits and Systems, ISCAS 2008
CountryUnited States
CitySeattle, WA
Period5/18/085/21/08

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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