Title :
A subthreshold CMOS implementation of a two-dimensional mechanical cochlear model
Author :
Om´mani, Henry A. ; Furth, Paul M.
Author_Institution :
Philip Semicond., Albuquerque, NM, USA
Abstract :
We present a two-dimensional passive silicon cochlea based on the work of Watts [1993]. The model propagates waves in the backward and forward directions with succeeding stages loading earlier stages. CMOS resistors operating in the subthreshold ohmic region implement the uniform cochlear fluid. SPICE simulations reveal a cutoff slope in excess of 100 dB/oct, which compares well with experimental results
Keywords :
CMOS analogue integrated circuits; SPICE; circuit simulation; ear; elemental semiconductors; resistors; silicon; CMOS resistors; SPICE simulations; Si; backward directions; cutoff slope; forward directions; passive silicon cochlea; subthreshold CMOS implementation; subthreshold ohmic region; two-dimensional mechanical cochlear model; uniform cochlear fluid; Biomembranes; Circuits; Damping; Design engineering; Ear; Impedance; Resistors; SPICE; Semiconductor device modeling; Voltage;
Conference_Titel :
Circuits and Systems, 1998. Proceedings. 1998 Midwest Symposium on
Conference_Location :
Notre Dame, IN
Print_ISBN :
0-8186-8914-5
DOI :
10.1109/MWSCAS.1998.759554
