Title :
A switched-MOSFET programmable low-voltage filter
Author :
Marques, L.C.C. ; Serdijn, W.A. ; Galup-Montoro, C. ; Schneider, M.C.
Abstract :
This paper describes a digitally programmable low-voltage low-power analogue filter that can be used in hearing-aid circuits. The filter employs the recently introduced switched-MOSFET technique, a sampled-data technique suitable for low supply voltage operation since it avoids the conduction gap of the switches and does not need any dedicated process. The filter was implemented using the DIMES 1.6 μm CMOS process and achieves 64 dB dynamic range under 2.2 V supply. The total current consumption is 93 μA.
Keywords :
CMOS analogue integrated circuits; MOSFET; biomedical electronics; hearing aids; integrated circuit design; integrated circuit measurement; low-power electronics; programmable filters; switched networks; 1.6 micron; 2.2 V; 93 muA; DIMES CMOS process; current consumption; digitally programmable low voltage low-power analogue filter; dynamic range; hearing-aid circuits; low supply voltage operation; sampled-data technique; switch conduction gap; switched-MOSFET programmable low-voltage filter; switched-MOSFET technique; Band pass filters; Capacitors; Delay; Digital filters; Low voltage; MOSFETs; Operational amplifiers; Samarium; Switches; Switching circuits;
Conference_Titel :
Integrated Circuits and Systems Design, 2002. Proceedings. 15th Symposium on
Print_ISBN :
0-7695-1807-9
DOI :
10.1109/SBCCI.2002.1137667
