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A new current mode synthesis method for dynamic translinear filters and its application in hearing AIDS

Masmoudi, D; Serdijn, W; Mulder, J; Woerd, AVD; Tomas, J; Dom, JP; (1998) A new current mode synthesis method for dynamic translinear filters and its application in hearing AIDS. In: (pp. pp. 337-340).

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Abstract

© 1998 IEEE. A new current mode synthesis method for dynamic translinear filters is proposed. As a design example, we have considered an ultra-low power second order filter working in audio frequency range, for hearing aids application, and using subthreshold MOS devices. It has a nominal supply voltage of 1.2 V and works down to 1 V. The total power consumption is about 5 μW. The filter cut-off frequency and its Q factor can be tuned respectively from 600 Hz to 13 kHz and from 0.6 to 1.1. Mismatch problems are investigated on the circuit level and an on-chip compensation method is proposed.

Type: Proceedings paper
Title: A new current mode synthesis method for dynamic translinear filters and its application in hearing AIDS
ISBN: 0780350081
DOI: 10.1109/ICECS.1998.814894
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng
URI: http://discovery.ucl.ac.uk/id/eprint/1528027
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