High-Speed Flash Analog-to-Digital Converters : Circuit Techniques for Improving the Bandwidth and the Accuracy in Deep-Submicron Technologies

ISBN-13: 9783639146912 / Angielski / Miękka / 2009 / 140 str.

Ayman Ismail

Opis

Flash Analog-to-Digital Converters (ADCs), targetingoptical communication standards, have been reportedin BiCMOS technology. CMOS implementation of suchdesigns faces two challenges. The first is to achievea high sampling speed, given the lower gain-bandwidthof CMOS technology. The second challenge is to handlethe wide bandwidth of the input signal with certainaccuracy. Although the first problem can be relaxedby using the time-interleaved architecture, thesecond problem remains as a main obstacle to CMOSimplementation. Thus, this work analyzes thebandwidth-accuracy product of flash ADCs, anddevelops a circuit technique to improve thebandwidth-accuracy product of flash ADCs in deepsubmicron CMOS technologies. The performanceimprovement that can be attained due to the proposedcircuit technique is demonstrated through the designand implementation of a 6-bit 1.6-GS/s flash ADC in0.13-Um CMOS technology.This work is intended for researchers, graduatestudents, and practicing engineers.

O autorze

Ayman Ismail, PhD: received the B.Sc. and M.Sc. degrees in
electrical engineering from Ain Shams University, Egypt, in 1998
and 2002, respectively. He received the Ph.D. degree from the
University of Waterloo, Canada, in 2007. Since 2007, he has been
an Analog/mixed-signal IC design engineer with the IP division of
Gennum Corp., Canada.