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2010•Unpublished venueRequires access

Realisation of high Q notch/allpass filter using low-voltage current conveyor

Susheel Sharma, Seema Rana, Kunal Pal

Open publisher page 1 citations

Abstract

A high quality factor (Q) biquad is realized using low-voltage (±0.75 V) second-generation current conveyors (CCII), which can realize dual filter functions (notch/allpass) depending on the resistance ratio. The circuit uses mostly grounded components, thus, enables its easy implementation in standard CMOS technologies. The circuit offers high input resistance (10 Ω) making it suitable for cascading and dissipates 3.8 mW power. The workability of this circuit has been verified by PSpice simulations using 0.5 μm technology parameters.

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What this paper is about

A high quality factor (Q) biquad is realized using low-voltage (±0.75 V) second-generation current conveyors (CCII), which can realize dual filter functions (notch/allpass) depending on the resistance ratio. The circuit uses mostly grounded components, thus, enables its easy implementation in standard CMOS technologies. The circuit offers high input resistance (10 Ω) making it suitable for cascading and dissipates 3.8 mW power. The workability of this circuit has been verified by PSpice simulations using 0.5 μm technology parameters.

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Available abstract

A high quality factor (Q) biquad is realized using low-voltage (±0.75 V) second-generation current conveyors (CCII), which can realize dual filter functions (notch/allpass) depending on the resistance ratio. The circuit uses mostly grounded components, thus, enables its easy implementation in standard CMOS technologies. The circuit offers high input resistance (10 Ω) making it suitable for cascading and dissipates 3.8 mW power. The workability of this circuit has been verified by PSpice simulations using 0.5 μm technology parameters.

Key concepts: Digital biquad filter, Current conveyor, All-pass filter, CMOS, Electrical engineering, Filter (signal processing), Electronic engineering, Spice

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