Title :
Low voltage CMOS op-amp with rail-to-rail input/output swing
Author :
Gopalaiah, S.V. ; Shivaprasad, A.P.
Author_Institution :
Dept. of Electr. Commun. Eng., Indian Inst. of Sci., Bangalore, India
Abstract :
As the supply voltage to a standard CMOS op-amp is reduced, the input common mode range and the output swing get reduced drastically. Special biasing circuits have to be used to raise them up to rail-to-rail supply voltage. Three low voltage op-amps with new biasing circuits have been proposed in this paper and their performance evaluated. The op-amp design is focused on dynamic range and high drive capability.
Keywords :
CMOS integrated circuits; low-power electronics; mixed analogue-digital integrated circuits; operational amplifiers; biasing circuits; complementary metal oxide semiconductor; input common mode range; low voltage CMOS operational amplifier; rail to rail input swing; rail to rail output swing; CMOS analog integrated circuits; CMOS technology; Differential amplifiers; Energy consumption; Low voltage; Operational amplifiers; Rail to rail inputs; Switched capacitor circuits; Switching circuits; Threshold voltage;
Conference_Titel :
Electronic Design, Test and Applications, Proceedings. DELTA 2004. Second IEEE International Workshop on
Conference_Location :
Perth, WA, Australia
Print_ISBN :
0-7695-2081-2
DOI :
10.1109/DELTA.2004.10038
