Title :
Analysis and design of a family of low-power class AB operational amplifiers
Author :
Silveira, Fernando ; Flandre, Denis
Author_Institution :
Inst. de Ingegneria Electr., Univ. de la Republica, Montevideo, Uruguay
Abstract :
A new class AB output stage is presented which extends a family of recently proposed stages based on current mirrors without requiring extra-compensation capacitances. In-depth circuit analysis also shows the significant advantage of such stages for low-power consumption and leads to the derivation of an optimum design strategy. Experimental realizations are described, in particular a micropower amplifier for cardiac pacemaker application
Keywords :
current mirrors; network analysis; network synthesis; operational amplifiers; pacemakers; power supply circuits; CMOS; SOI; cardiac pacemaker application; circuit analysis; circuit architecture; class AB operational amplifiers; current mirrors; low-power consumption; micropower amplifier; optimum design; output stage; Batteries; CMOS technology; Capacitance; Circuit analysis; Current control; Mirrors; Operational amplifiers; Pacemakers; Signal processing; Stability criteria;
Conference_Titel :
Integrated Circuits and Systems Design, 2000. Proceedings. 13th Symposium on
Conference_Location :
Manaus
Print_ISBN :
0-7695-0843-X
DOI :
10.1109/SBCCI.2000.876014
