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A true low voltage class-AB current mirror


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Opened Access A true low voltage class-AB current mirror

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Author: Torralba Silgado, Antonio Jesús
González Carvajal, Ramón
Jiménez Fuentes, José Mariano
Muñoz Chavero, Fernando
Ramírez Angulo, Jaime
Department: Universidad de Sevilla. Departamento de Ingeniería Electrónica
Date: 2005
Published in: IEICE Electronics Express, 2(4), 103-107
Document type: Article
Abstract: Class-AB circuits, which are able to deal with currents which are orders of magnitude larger than their quiescent current, are good candidates for low-power analog design. This paper presents a new, simple, class-AB current-mirror, based on the Flipped Voltage Follower [1]. In the authors knowledge this is the first class-AB current-mirror which operates with a supply voltage smaller than two transistor threshold voltages without an additional clock signal or voltage doubler. Experimental results are provided which show proper operation at 1.5V in a 0.5µm standard CMOS technology.
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