Bandwidth and power adaptive receiver amplifier design for optical communications in 80 nm CMOS
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Beitragende
Abstract
In order to extend the battery life time of mobile devices, power consumption should be reduced in case of a transmission at lower data rate (DR). In optical receiver frontends the limiting or main amplifier (LA/MA) is one of the largest power consumers. This paper presents a LA/MA topology where the power can be scaled down while the gain is kept constant when lower bandwidth is required for the transmission. The concept is implemented in 80 nm CMOS. Measurements show a 50 % decrease of power consumption in limiting operation when switching from the high-performance and high-power (HP) mode, where 16 Gbps transmission is possible at a bit error rate (BER) of 10-12 and with 0.6 pJ/bit, to the low-performance and low-power (LP) mode where a DR of 10 Gbps is possible with only 0.48 pJ/bit. The adaptive LA/MA, realized with a third-order interleaving feedback circuit keeps the gain constant in linear operation as well, as shown by small-signal measurements.
Details
Originalsprache | Englisch |
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Titel | SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC) |
Redakteure/-innen | Antonio Jeronimo Belfort de Oliveira, Alfredo Gomes Neto, Joaquim Ferreira Martins Filho, Marcos Tavares de Melo |
Erscheinungsort | Porto de Galinhas |
Herausgeber (Verlag) | IEEE Xplore |
ISBN (elektronisch) | 978-1-4673-9492-5, 978-1-5090-0431-7 |
Publikationsstatus | Veröffentlicht - 2015 |
Peer-Review-Status | Ja |
Publikationsreihe
Reihe | SBMO/IEEE MTT-S International Conference on Microwave and Optoelectronics (IMOC) |
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Band | 2015-December |
Konferenz
Titel | 2015 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference |
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Kurztitel | IMOC 2015 |
Dauer | 3 - 6 November 2015 |
Stadt | Porto de Galinhas |
Land | Brasilien |
Externe IDs
Scopus | 84964452495 |
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ORCID | /0000-0002-1851-6828/work/142256662 |
Schlagworte
Forschungsprofillinien der TU Dresden
ASJC Scopus Sachgebiete
Schlagwörter
- adaptive limiting amplifier, adaptive main amplifier, optical receiver frontend, power-datarate scaling