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A very compact KHN filter with multidecade tuning

Opened Access A very compact KHN filter with multidecade tuning
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Autor: Muñiz Montero, Carlos
Díaz Sánchez, Alejandro
González Carvajal, Ramón
Departamento: Universidad de Sevilla. Departamento de Ingeniería Electrónica
Fecha: 2007
Publicado en: 18th European Conference on Circuit Theory Design: Sevilla, 26-30 de agosto, 2007
Tipo de documento: Ponencia
Resumen: A very compact implementation of a multifunction Kerwin Huelsman Newcomb (KHN) filter that can be frequency tuned almost seven decades, from 0.2 Hz to 1 Mhz, is presented. Tuning is achieved by means of high-value, programmable active resistors biased using the quasi floating gate (QFG) technique and linearisated through capacitive gate voltage averaging. The circuit, realized in a 0.5 μm standard CMOS technology using only four CMOS inverters, six small capacitors, six small resistors and two programmable active resistors, occupies a total area of 0.02 mm2, dissipates 3.45 mW and presents a dynamic range at 0.1 % THD of 55.86.
Tamaño: 236.7Kb
Formato: PDF

URI: http://hdl.handle.net/11441/23455

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