Title :
CMOS operational amplifiers with continuous-time capacitive common mode feedback
Author :
Ramirez-Angulo, Jaime ; Nargis, Ayesha ; Carvajal, Ramón G. ; López-Martin, Antonio
Author_Institution :
Klipsch Sch. of Electr. & Comput. Eng., New Mexico State Univ., Las Cruces, NM, USA
fDate :
May 30 2010-June 2 2010
Abstract :
A simple and power efficient approach for the implementation of continuous-time common mode feedback networks using a capacitive averaging network is introduced. It is shown that low voltage, continuous-time, fully differential rail to rail operation can be achieved using the proposed technique. This at the expense of very small additional hardware and no additional power dissipation One stage, two stage, telescopic and folded cascode op-amps are discussed as application examples.
Keywords :
CMOS analogue integrated circuits; operational amplifiers; CMOS operational amplifiers; capacitive averaging network; continuous-time capacitive common mode feedback; continuous-time common mode feedback networks; folded cascode; op-amps; power dissipation; telescopic cascode; Bandwidth; CMOS technology; Capacitors; Circuits; Feedback; Hardware; Low voltage; Operational amplifiers; Power dissipation; Signal to noise ratio;
Conference_Titel :
Circuits and Systems (ISCAS), Proceedings of 2010 IEEE International Symposium on
Conference_Location :
Paris
Print_ISBN :
978-1-4244-5308-5
Electronic_ISBN :
978-1-4244-5309-2
DOI :
10.1109/ISCAS.2010.5537266
