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2009•Universiti Putra Malaysia Institutional Repository (Universiti Putra Malaysia)Open access

Low-voltage variable current gain CCII based all-pass/notch filter

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

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Abstract

A second order low-voltage current conveyor type II (CCII) based filter circuit which can realize dual filter functions (all-pass/notch) depending on the current gain of CCII has been presented. The circuit employs equal valued components with all capacitors grounded and is more suitable for chip implementation. The circuit offers high input impedance, low output impedance and employs same type of active devices (CCII+). Theoretical results have been validated by PSpice simulations using 0.5 µm technology parameters at supply voltage of ± 0.75 V.

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What this paper is about

A second order low-voltage current conveyor type II (CCII) based filter circuit which can realize dual filter functions (all-pass/notch) depending on the current gain of CCII has been presented. The circuit employs equal valued components with all capacitors grounded and is more suitable for chip implementation. The circuit offers high input impedance, low output impedance and employs same type of active devices (CCII+). Theoretical results have been validated by PSpice simulations using 0.5 µm technology parameters at supply voltage of ± 0.75 V.

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Available abstract

A second order low-voltage current conveyor type II (CCII) based filter circuit which can realize dual filter functions (all-pass/notch) depending on the current gain of CCII has been presented. The circuit employs equal valued components with all capacitors grounded and is more suitable for chip implementation. The circuit offers high input impedance, low output impedance and employs same type of active devices (CCII+). Theoretical results have been validated by PSpice simulations using 0.5 µm technology parameters at supply voltage of ± 0.75 V.

Key concepts: Current conveyor, Capacitor, Electrical impedance, Filter (signal processing), Band-stop filter, Voltage, Low-pass filter, Electronic engineering

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