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2006•IR@NPL (CSIR-The National Physical Laboratory(NPL))Open access

Low-voltage CCII based all-pass/notch filter

Susheel Sharma, S.S. Rajput, Kunal Pal, L. K. Mangotra, S.S. Jamuar

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Abstract

A second order low-voltage (+/- 0.75 V) second-generation current conveyor (CCII) based filter circuit has been presented which can realize dual filter functions (all-pass/notch) depending on the resistance ratio. The gain of the filter is independently controlled by a resistance. The circuit employs almost all grounded components (except one resistor), thus enables its implementation with standard CMOS technologies. Theoretical results have been verified by PSpice simulations using 0.5 mu m technology parameters. \n

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A second order low-voltage (+/- 0.75 V) second-generation current conveyor (CCII) based filter circuit has been presented which can realize dual filter functions (all-pass/notch) depending on the resistance ratio. The gain of the filter is independently controlled by a resistance. The circuit employs almost all grounded components (except one resistor), thus enables its implementation with standard CMOS technologies. Theoretical results have been verified by PSpice simulations using 0.5 mu m technology parameters. \n

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Available abstract

A second order low-voltage (+/- 0.75 V) second-generation current conveyor (CCII) based filter circuit has been presented which can realize dual filter functions (all-pass/notch) depending on the resistance ratio. The gain of the filter is independently controlled by a resistance. The circuit employs almost all grounded components (except one resistor), thus enables its implementation with standard CMOS technologies. Theoretical results have been verified by PSpice simulations using 0.5 mu m technology parameters. \n

Key concepts: Current conveyor, Resistor, Filter (signal processing), Band-stop filter, CMOS, All-pass filter, Voltage, Electronic engineering

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