Fully integrated auto-zero feedback with lower cutoff frequency below 50 kHz in a 40 GBit/s transimpedance amplifier

Author

Knochenhauer, Christian ; Wolf, Robert ; Sedighi, Behnam ; Ellinger, Frank

Author_Institution

Dept. of Circuit Design & Network Theor., Tech. Univ. Dresden, Dresden, Germany

fYear

2011

fDate

27-28 Sept. 2011

Firstpage

1

Lastpage

4

Abstract

This paper presents a fully integrated auto-zero feedback for use in analog frontends of high-speed optical communication systems. The feedback provides a lower cutoff frequency of 30 kHz without needing any external capacitor. It is implemented and proved in a 40 GBit/s transimpedance amplifier fabricated in a 0.25 μm SiGe BiCMOS technology. The TIA provides >;27 dB gain with a bandwidth of >;34 GHz over an input current range from 0 to 0.8 mApp.

Keywords

BiCMOS integrated circuits; Ge-Si alloys; integrated optoelectronics; operational amplifiers; optical communication equipment; BiCMOS technology; SiGe; analog frontends; bit rate 40 Gbit/s; external capacitor; fully integrated autozero feedback; high speed optical communication systems; lower cutoff frequency; size 0.25 mum; transimpedance amplifier; BiCMOS integrated circuits; Current measurement; Cutoff frequency; Feedback loop; Frequency measurement; Gain; Silicon germanium; BiCMOS; integrated circuit packaging; opto-electronic integrated circuit; transimpedance amplifier (TIA);

fLanguage

English

Publisher

ieee

Conference_Titel

Semiconductor Conference Dresden (SCD), 2011

Conference_Location

Dresden

Print_ISBN

978-1-4577-0431-4

Type

conf

DOI

10.1109/SCD.2011.6068764

Filename

6068764