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

Shiwei Wang, Thomas Jacob Koickal, A. Hamilton, E. Mastropaolo, R. Cheung, L. Smith

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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.

Original languageEnglish
Title of host publicationProceedings - IEEE International Symposium on Circuits and Systems
Pages193-196
Number of pages4
DOIs
Publication statusPublished - 9 Sep 2013
EventIEEE International Symposium on Circuits and Systems (ISCAS) - Beijing, Beijing, United Kingdom
Duration: 19 May 201323 May 2013

Conference

ConferenceIEEE International Symposium on Circuits and Systems (ISCAS)
CountryUnited Kingdom
CityBeijing
Period19/05/1323/05/13

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