Title :
A high bandwidth gm-constant rail-to-rail CMOS op amp for low voltage VLSI systems
Author :
Ji, Chu ; Ye, Fan ; Ren, Junyan ; Xu, Jun
Author_Institution :
ASIC, Fudan Univ., Shanghai, China
Abstract :
A rail-to-rail CMOS input stage is presented with its transconductance nearly independent of the common-mode (CM) level. Since its operation does not rely on an analytical square law, it has less dependency on the process and is applicable to deep sub-micron technologies. A high bandwidth op amp is proposed based on this transconductance, which features rail-to-rail input as well. The amplifier exhibits full swing across the power supply range
Keywords :
CMOS analogue integrated circuits; low-power electronics; operational amplifiers; DSM CMOS technology; common-mode level; deep sub-micron technologies; full swing; high bandwidth; high bandwidth gm-constant rail-to-rail CMOS op amp; input transconductance; low voltage VLSI systems; rail-to-rail input; Application specific integrated circuits; Bandwidth; CMOS technology; Laboratories; Low voltage; Power supplies; Rail to rail inputs; Tail; Transconductance; Very large scale integration;
Conference_Titel :
ASIC, 2001. Proceedings. 4th International Conference on
Conference_Location :
Shanghai
Print_ISBN :
0-7803-6677-8
DOI :
10.1109/ICASIC.2001.982544
