A Gm-C bump equalizer for low-voltage low-power applications
| Contribuinte(s) |
Universidade Estadual Paulista (UNESP) |
|---|---|
| Data(s) |
27/05/2014
27/05/2014
07/09/2004
|
| Resumo |
A low-voltage low-power 2nd-order CMOS pseudo-differential bump-equalizer is presented. Its topology comprises a bandpass section with adjustable center frequency and quality factor, together with a programmable current amplifier. The basic building blocks are triode-operating transconductors, tunable by means of either a DC voltage or a digitally controlled current divider. The bump-equalizer as part of a battery-operated hearing aid device is designed for a 1.4V-supply and a 0.35μm CMOS fabrication process. The circuit performance is supported by a set of simulation results, which indicates a center frequency from 600Hz to 2.4kHz, 1≤Q≤5, and an adjustable gain within ±6dB at center frequency. The filter dynamic range lies around 40dB. Quiescent consumption is kept below 12μW for any configuration of the filter. |
| Identificador |
http://dx.doi.org/10.1109/ISCAS.2004.1328315 Proceedings - IEEE International Symposium on Circuits and Systems, v. 1. 0271-4310 http://hdl.handle.net/11449/67876 10.1109/ISCAS.2004.1328315 2-s2.0-4344619198 |
| Idioma(s) |
eng |
| Relação |
Proceedings - IEEE International Symposium on Circuits and Systems |
| Direitos |
closedAccess |
| Palavras-Chave | #Bandpass amplifiers #Electric potential #Power electronics #Topology #Transconductance #Triodes #Wave filters #Bump equalizers #CMOS fabrication #Voltage tuning #CMOS integrated circuits |
| Tipo |
info:eu-repo/semantics/conferencePaper |
