Low voltage low power CMOS current mode building blocks for hearing aid applications

Current mode CMOS building blocks for hearing aid application are proposed. The proposed circuits include, digital and analog automatic gain controls, digitally controlled G/sub m/-C filters, and a pulse width modulation output stage. The circuits were fabricated in a 2 /spl mu/m n-well CMOS process...

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Bibliographic Details
Main Authors: El-Adawy, A.A., Ahmed, A.G., Soliman, A.M., Elwan, H.O.
Format: Conference Proceeding
Language:English
Subjects:
Auditory system
Automatic control
Digital control
Digital filters
Digital modulation
Gain control
Low voltage
Pulse circuits
Pulse width modulation
Space vector pulse width modulation
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Description
Summary:Current mode CMOS building blocks for hearing aid application are proposed. The proposed circuits include, digital and analog automatic gain controls, digitally controlled G/sub m/-C filters, and a pulse width modulation output stage. The circuits were fabricated in a 2 /spl mu/m n-well CMOS process through MOSIS.
DOI:10.1109/MWSCAS.1997.662288