Title :
A proposed sub-threshold OTA-C filter for Hearing Aids
Author :
Hasan, S.A. ; Hall, S. ; Marsland, J.S.
Author_Institution :
Electr. Eng. & Electron. Dept., Univ. of Liverpool, Liverpool, UK
Abstract :
A band-pass OTA-C filter for Hearing Aids applications is designed, simulated, and tested, using BSIM3v3.2 models from the AMS process for 0.35μm CMOS C35 Technology. The filter operates in the transistor sub-threshold regime resulting in power consumption of 33nW and 1.695μW for frequency bands centered at 95Hz and 20 kHz respectively. It operates with ±1.5V supply rails and features an input linear range of ±900mV, with total harmonic distortion <; 5% and a dynamic range of 65dB.
Keywords :
CMOS analogue integrated circuits; band-pass filters; circuit simulation; circuit testing; hearing aids; network synthesis; operational amplifiers; AMS process; BSIM3v3.2 models; CMOS C35 Technology; band-pass filter; hearing aids; power 1.695 muW; power 33 nW; size 0.35 mum; subthreshold OTA-C filter; total harmonic distortion; transistor subthreshold regime; voltage 1.5 V; Attenuation; Band pass filters; Capacitors; Dynamic range; MOSFETs; Noise; Power harmonic filters;
Conference_Titel :
New Circuits and Systems Conference (NEWCAS), 2011 IEEE 9th International
Conference_Location :
Bordeaux
Print_ISBN :
978-1-61284-135-9
DOI :
10.1109/NEWCAS.2011.5981258
