Publication: Class AB amplifier with enhanced slew rate and GBW
Date
2019
Authors
Ramírez-Angulo, Jaime
González Carvajal, Ramón
Director
Publisher
John Wiley & Sons
Acceso abierto / Sarbide irekia
Artículo / Artikulua
Versión aceptada / Onetsi den bertsioa
Project identifier
ES/1PE/TEC2016-80396-C2-1-R
Abstract
The design of a micropower class AB operational transconductance amplifier with large dynamic current to quiescent current ratio is addressed. It is based on a compact and power-efficient adaptive biasing circuit and a class AB current follower using the Quasi-Floating Gate (QFG) technique. The amplifier has been designed and fabricated in a 0.5 um CMOS process. Simulation and measurement results show a slew rate (SR) improvement factor versus the class A version larger than 4 for the same supply voltage and bias currents, as well as enhanced small-signal performance.
Description
Keywords
Current followers, Current amplifiers, Analog integrated circuits, CMOS integrated circuits, Class AB circuits
Department
Ingeniería Eléctrica y Electrónica / Ingeniaritza Elektrikoa, Elektronikoaren eta Telekomunikazio Ingeniaritzaren
Faculty/School
Degree
Doctorate program
item.page.cita
Garde MP, Lopez-Martin A, Algueta JM, Carvajal RG, Ramirez-Angulo J. Class AB amplifier with enhanced slew rate and GBW. International Journal of Circuit Theory and Applications. 2019; 47(8): 1199- 1210. https://doi.org/10.1002/cta.2650
item.page.rights
© 2019 John Wiley & Sons, Ltd.
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