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Digitally Programmable CMOS Current-Conveyor Circuit for Filter Design
Faculty
Not Specified
Year:
2009
Type of Publication:
InProcceding
Pages:
Authors:
Farag, Fathi A
Journal:
IEEE
Volume:
Research Area:
Engineering
ISSN
ISI:000275854200107
Keywords :
Digitally Programmable CMOS Current-Conveyor Circuit , Filter
Abstract:
This paper presents a new topology for a full), digitally programmable current-mode filter. The proposed scheme is based on the current conveyor cell in Ill. The circuit is preferred for low power low voltage applications since it is based on CMOS inverters and op-amps only. The proposed circuit is employed to implement digitally variable capacitor for low cut off frequency filter design. The proposed circuits have been designed and simulated using the IBM CMOS 0.13 mu m process. Error analysis is also provided in detail and performance improvement is discussed. Simulation results show good agreement with the analytical calculations. The static power dissipation is equal to 0.1mW from 1.5V supply.
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