Current Mode Biquad Filter with Minimum Component Count

الملخص EN

The paper presents a new current mode biquadratic filter with one input and three outputs using differential voltage current conveyor (DVCC) and four passive components.

The proposed circuit can simultaneously realize low-pass, band-pass, and high-pass filter functions without changing the circuit topology and passive elements.

The circuit exhibits a good frequency performance and low-sensitivity figures.

PSPICE simulation using 0.5 μm CMOS parameters are given to validate the proposed circuit.

The circuit provides a simple yet novel solution to the current-mode filtering after appropriate incorporation of current sensing elements in form of current buffers.