A CMOS Micro-power, Class-AB “Flipped” Voltage Follower using the quasi floating-gate technique

This paper presents the design and characterization of a new analog voltage follower for low-voltage applications. The main idea is based on the “Flipped” Voltage Follower and the use of the quasi-floating gate technique for achieving class AB operation. A test cell was simulated and fabricated usin...

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Detalles Bibliográficos
Autores: J.J. Ocampo-Hidalgo, I. Vázquez-Álvarez, S. Sandoval-Perez, R. Z. García-Lozano, M. A. Gurrola, J. E. Molinar-Solis
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2017
País:México
Institución:Universidad de Guadalajara
Repositorio:Redalyc-UDG
OAI Identifier:oai:redalyc.org:64352303011
Acceso en línea:https://www.redalyc.org/articulo.oa?id=64352303011
Access Level:acceso abierto
Palabra clave:Ingeniería
quasi
micro
power
low voltage
floating gate circuits
Descripción
Sumario:This paper presents the design and characterization of a new analog voltage follower for low-voltage applications. The main idea is based on the “Flipped” Voltage Follower and the use of the quasi-floating gate technique for achieving class AB operation. A test cell was simulated and fabricated using a 0,5 μm CMOS technology. When the proposed circuit is supplied with VDD = 1,5 V, it presents a power consumption of only 413 μW. Measurement and experimental results show a gain-bandwidth product of 10 MHz and a total harmonic distortion of 1,12 % at 1 MHz.