A low-power, 20-Gb/s continuous-time adaptive passive equalizer

Author

Sun, Ruifeng ; Park, Jaejin ; O´Mahony, Frank ; Yue, C. Patrick

Author_Institution

Dept. of Electr. & Comput. Eng., Carnegie Mellon Univ., Pittsburgh, PA, USA

fYear

2005

fDate

23-26 May 2005

Firstpage

920

Abstract

This paper describes a 20-Gb/s continuous-time adaptive passive equalizer utilizing on-chip lumped RLC components. Passive equalizers offer the advantages of higher bandwidth and lower power consumption compared with conventional designs using active filters. A low-power, continuous-time servo loop is designed to automatically adjust the equalizer frequency response for the optimal gain compensation. The equalizer not only adapts to different channel characteristics, but also accommodates temperature and process variations. Implemented in a 0.25-μm, 1P6M BiCMOS process, the equalizer can compensate up to 20 dB of loss at 10 GHz while only consuming 32 mW from a 2.5-V supply.

Keywords

BiCMOS analogue integrated circuits; RLC circuits; adaptive equalisers; circuit feedback; error compensation; frequency response; low-power electronics; 0.25 micron; 10 GHz; 2.5 V; 20 Gbit/s; 32 mW; BiCMOS; RLC filter; continuous-time adaptive passive equalizer; continuous-time servo loop; equalizer frequency response automatic adjustment; gain compensation; limiting amplifier; loss compensation; low-pass filter; low-power equalizer; on-chip lumped RLC components; passive equalization filter; process variations; temperature variations; Active filters; Adaptive equalizers; Bandwidth; Energy consumption; Equations; Frequency response; Intersymbol interference; Passive filters; Servomechanisms; Sun;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2005. ISCAS 2005. IEEE International Symposium on

Print_ISBN

0-7803-8834-8

Type

conf

DOI

10.1109/ISCAS.2005.1464739

Filename

1464739