A 5-b 10-Gsample/s A/D converter for 10-Gb/s optical receivers

Author

Jaesik Lee ; Loux, P. ; Link, T. ; Baeyens, Y. ; Young-Kai Chen

Author_Institution

Lucent Technol. Bell Labs., Murray Hill, NJ, USA

fYear

2003

fDate

9-12 Nov. 2003

Firstpage

204

Lastpage

207

Abstract

A 5-bit 10-Gsample/s A/D converter (ADC) is fabricated in a SiGe BiCMOS process to digitally compensate the signal distortion in a 10-Gb/s optical receiver. A fully differential, flash-type ADC has a wideband track-and-hold amplifier to mitigate the timing skew, followed by high-speed comparators with very small metastability error. It achieves a 4.1 effective bits at low input frequencies and 2.8 effective bits at full-scale 4.9-GHz input signal at 10-Gsample/s.

Keywords

Ge-Si alloys; analogue-digital conversion; bipolar integrated circuits; circuit stability; comparators (circuits); nonlinear distortion; optical receivers; sample and hold circuits; semiconductor materials; 10 Gbit/s; 4.9 GHz; A/D converter; SiGe; SiGe BiCMOS process; comparator metastability error; fully differential flash-type ADC; high-speed comparators; nonlinear distortion; optical receivers; signal distortion digital compensation; timing skew; wideband track-and-hold amplifier; BiCMOS integrated circuits; Broadband amplifiers; Differential amplifiers; Germanium silicon alloys; Optical amplifiers; Optical distortion; Optical receivers; Signal processing; Silicon germanium; Timing;

fLanguage

English

Publisher

ieee

Conference_Titel

Gallium Arsenide Integrated Circuit (GaAs IC) Symposium, 2003. 25th Annual Technical Digest 2003. IEEE

Conference_Location

San Diego, CA, USA

ISSN

1064-7775

Print_ISBN

0-7803-7833-4

Type

conf

DOI

10.1109/GAAS.2003.1252395

Filename

1252395