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A floating active inductor based CMOS cochlea filter with high tunability and sharp cut-off

A floating active inductor based CMOS cochlea filter with high tunability and sharp cut-off
A floating active inductor based CMOS cochlea filter with high tunability and sharp cut-off

This paper presents the design of a CMOS cochlea filter channel which achieves high tunability, sharp stopband cutoff and low power consumption with the use of floating active inductor (FAI) as the basic building block. Simulation results show that over 40dB of gain enhancement together with 20% frequency tuning can be achieved at the same time by adjusting only one circuit parameter. A fifth-order elliptic filter providing a stop-band slope of 65.4 ∼ 139.8 dB/octave is used as the last stage of the cochlea filter. The power consumption of the cochlea filter channel is 86μW.

0271-4310
193-196
Wang, Shiwei
97433cb6-7752-4c68-89f8-933f233d8642
Koickal, Thomas Jacob
ca8588e6-32a5-4d70-8068-0a17178a5cc8
Hamilton, A.
248e45ad-b658-4af3-9bdb-b09caeae9238
Mastropaolo, E.
b6991cbf-7da3-4a8b-9a4d-cddab941727b
Cheung, R.
6e95e1b3-1506-43d3-a1d1-578ddbcb7708
Smith, L.
cd83099c-eee3-461d-8989-df88d91dfc3d
Wang, Shiwei
97433cb6-7752-4c68-89f8-933f233d8642
Koickal, Thomas Jacob
ca8588e6-32a5-4d70-8068-0a17178a5cc8
Hamilton, A.
248e45ad-b658-4af3-9bdb-b09caeae9238
Mastropaolo, E.
b6991cbf-7da3-4a8b-9a4d-cddab941727b
Cheung, R.
6e95e1b3-1506-43d3-a1d1-578ddbcb7708
Smith, L.
cd83099c-eee3-461d-8989-df88d91dfc3d

Wang, Shiwei, Koickal, Thomas Jacob, Hamilton, A., Mastropaolo, E., Cheung, R. and Smith, L. (2013) A floating active inductor based CMOS cochlea filter with high tunability and sharp cut-off. In 2013 IEEE International Symposium on Circuits and Systems, ISCAS 2013. pp. 193-196 . (doi:10.1109/ISCAS.2013.6571815).

Record type: Conference or Workshop Item (Paper)

Abstract

This paper presents the design of a CMOS cochlea filter channel which achieves high tunability, sharp stopband cutoff and low power consumption with the use of floating active inductor (FAI) as the basic building block. Simulation results show that over 40dB of gain enhancement together with 20% frequency tuning can be achieved at the same time by adjusting only one circuit parameter. A fifth-order elliptic filter providing a stop-band slope of 65.4 ∼ 139.8 dB/octave is used as the last stage of the cochlea filter. The power consumption of the cochlea filter channel is 86μW.

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More information

Published date: 9 September 2013
Venue - Dates: 2013 IEEE International Symposium on Circuits and Systems, ISCAS 2013, , Beijing, China, 2013-05-18 - 2013-05-22

Identifiers

Local EPrints ID: 445937
URI: http://eprints.soton.ac.uk/id/eprint/445937
ISSN: 0271-4310
PURE UUID: 0bcff962-9cdc-47c3-b869-565be6dc1801
ORCID for Shiwei Wang: ORCID iD orcid.org/0000-0002-5450-2108

Catalogue record

Date deposited: 14 Jan 2021 19:16
Last modified: 07 Sep 2021 02:04

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Contributors

Author: Shiwei Wang ORCID iD
Author: Thomas Jacob Koickal
Author: A. Hamilton
Author: E. Mastropaolo
Author: R. Cheung
Author: L. Smith

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