Title :
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
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;
Conference_Titel :
Gallium Arsenide Integrated Circuit (GaAs IC) Symposium, 2003. 25th Annual Technical Digest 2003. IEEE
Conference_Location :
San Diego, CA, USA
Print_ISBN :
0-7803-7833-4
DOI :
10.1109/GAAS.2003.1252395
