A Switched-MOSFET Programmable Low-Voltage Filter

L. C. C. Marques; W. A. Serdijn; C. Galup-Montoro; M. C. Schneider

doi:10.1109/SBCCI.2002.1137667

Proceedings 15th Symposium on Integrated Circuits and Systems Design

A Switched-MOSFET Programmable Low-Voltage Filter

Year: 2002, Pages: 254

DOI Bookmark: 10.1109/SBCCI.2002.1137667

Authors

L. C. C. Marques, Centro Federal de Educa??o Tecnol?gica de Pelotas and Universidade Federal de Santa Catarina
W. A. Serdijn, Delft University of Technology
C. Galup-Montoro, Centro Federal de Educa??o Tecnol?gica de Pelotas
M. C. Schneider, Centro Federal de Educa??o Tecnol?gica de Pelotas

Abstract

This paper describes a digitally programmable low-voltage low-power analogue filter that can be used in hearing-aid circuits [1-4]. The filter employs the recently introduced switched-MOSFET technique [5,11-15], a sampled-data technique suitable for low supply voltage operation since it avoids the conduction gap of the switches and does not need any dedicated process. The filter was implemented using the DIMES 1.6 ?m CMOS process and achieves 64 dB dynamic range under 2.2V supply. The total current consumption is 93 ?A.

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A Switched-MOSFET Programmable Low-Voltage Filter

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Abstract

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