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% fre...

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Hauptverfasser: Shiwei Wang, Koickal, Thomas Jacob, Hamilton, A., Mastropaolo, E., Cheung, R., Smith, L.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Band-pass filters
Biology
Cutoff frequency
Frequency response
Gain
Silicon
Tuning
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Koickal, Thomas Jacob
Hamilton, A.
Mastropaolo, E.
Cheung, R.
Smith, L.
description 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.
doi_str_mv 10.1109/ISCAS.2013.6571815
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subjects Band-pass filters
Biology
Cutoff frequency
Frequency response
Gain
Silicon
Tuning
title A floating active inductor based CMOS cochlea filter with high tunability and sharp cut-off
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