Title :
CMOS dynamic comparators for pipeline A/D converters
Author :
Sumanen, Lauri ; Waltari, Mikko ; Hakkarainen, Väinö ; Halonen, Kari
Author_Institution :
Electron. Circuit Design Lab., Helsinki Univ. of Technol., Finland
Abstract :
Three different CMOS dynamic comparator topologies for pipeline A/D converters, resistive divider, differential pair, and charge distribution comparators, are analyzed. The topologies considered are fully differential, i.e. both sensing and reference voltage inputs are balanced, consist only of a single stage, and feature zero DC power dissipation with a built-in threshold adjusting input stage. Test structures of the comparators, fabricated in 0.35-μm CMOS process, are measured to determine the offset properties of the compared topologies.
Keywords :
CMOS integrated circuits; analogue-digital conversion; comparators (circuits); differential amplifiers; dividing circuits; low-power electronics; pipeline processing; 0.35 micron; CMOS; CMOS dynamic comparators; DC power dissipation; charge distribution comparators; differential pair; offset properties; pipeline A/D converters; reference voltage inputs; resistive divider; threshold adjusting input stage; CMOS technology; Circuit testing; Circuit topology; Electronic circuits; Energy consumption; Laboratories; Pipelines; Power dissipation; Threshold voltage; Voltage control;
Conference_Titel :
Circuits and Systems, 2002. ISCAS 2002. IEEE International Symposium on
Print_ISBN :
0-7803-7448-7
DOI :
10.1109/ISCAS.2002.1010664
