A high performance TIA design in 40 nm CMOS

Ali Doğuş Güngördü, Günhan Dündar, Mustafa Berke Yelten

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

9 Citations (Scopus)

Abstract

In optical communication systems, transimpedance amplifiers (TIAs) play a critical role as they are used in the front end of receivers to sense the optical inputs thereby converting them into electrical signals. In this paper, a low noise, high gain, and low power TIA is presented in 40 nm CMOS technology. To compensate for the low intrinsic gain of the technology, a structure, which comprises a shunt-shunt feedback amplifier for the first stage and two post-amplifiers for the following stages are designed. Active inductive loads are employed to extend the bandwidth. Post-layout simulation results show that the designed TIA has a bandwidth over 5 GHz, a transimpedance gain 75 dBΩ, and an input-referred noise current in bandwidth less than 8 pA/√Hz. The total layout occupies a chip estate of 0.0052 mm2 while the DC power consumption is found to be 7.15 mW without the output buffer, using a single 1.1 V power supply.

Original languageEnglish
Title of host publication2020 IEEE International Symposium on Circuits and Systems, ISCAS 2020 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728133201
Publication statusPublished - 2020
Event52nd IEEE International Symposium on Circuits and Systems, ISCAS 2020 - Virtual, Online
Duration: 10 Oct 202021 Oct 2020

Publication series

NameProceedings - IEEE International Symposium on Circuits and Systems
Volume2020-October
ISSN (Print)0271-4310

Conference

Conference52nd IEEE International Symposium on Circuits and Systems, ISCAS 2020
CityVirtual, Online
Period10/10/2021/10/20

Bibliographical note

Publisher Copyright:
© 2020 IEEE

Funding

ACKNOWLEDGMENT This work was sponsored by the Technological Research Council of Turkey under the project TÜB˙TAK 1001 118E253.

FundersFunder number
Technological Research Council of TurkeyTÜB˙TAK 1001 118E253

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