Title :
Translinear transconductor design for cochlear filter banks
Author :
Furth, Paul M. ; Andreou, Andreas G.
Author_Institution :
Klipsch Sch. of Electr. & Comput. Eng., New Mexico State Univ., Las Cruces, NM, USA
Abstract :
The five major requirements of a transconductance-C integrator for use in cochlear filter banks are: low voltage, low power, small area, wide tuning range, and high dynamic range. The BiCMOS transconductor of Andreou and Liu (1993), which incorporates MOSTs operating in strong and weak inversion and a bipolar current multiplier, simultaneously satisfies all of these design criteria. Moreover, each stage of the transconductor can be optimized in order to achieve the best overall performance. A similar design strategy can be applied to MOSFET-C implementations
Keywords :
BiCMOS analogue integrated circuits; analogue processing circuits; circuit tuning; continuous time filters; integrating circuits; speech processing; BiCMOS transconductor; MOSFET-C implementations; bipolar current multiplier; cochlear filter banks; high dynamic range; transconductance-C integrator; translinear transconductor design; wide tuning range; BiCMOS integrated circuits; Capacitance; Channel bank filters; Cutoff frequency; Dynamic range; MOSFETs; Transconductance; Transconductors; Tuning; Voltage;
Conference_Titel :
Circuits and Systems, 1996., IEEE 39th Midwest symposium on
Conference_Location :
Ames, IA
Print_ISBN :
0-7803-3636-4
DOI :
10.1109/MWSCAS.1996.588084
