Abstract
To further extend the existing knowledge on voltage-mode universal biquadratic filter, in this paper, a new biquadratic filter circuit with single input and multiple outputs is proposed, employing three differential voltage current conveyors (DVCCs), three resistors, and two grounded capacitors. The proposed circuit realizes all the standard filter functions, that is, high-pass, band-pass, low-pass, notch, and all-pass filters simultaneously. The circuit enjoys the feature of high-input impedance, orthogonal control of resonance angular frequency (<svg style="vertical-align:-3.22281pt;width:16.862499px;" id="M1" height="11.0375" version="1.1" viewBox="0 0 16.862499 11.0375" width="16.862499" xmlns="http://www.w3.org/2000/svg"> <g transform="matrix(1.25,0,0,-1.25,0,11.0375)"> <g transform="translate(72,-63.17)"> <text transform="matrix(1,0,0,-1,-71.95,66.44)"> <tspan style="font-size: 12.50px; " x="0" y="0">𝜔</tspan> </text> <text transform="matrix(1,0,0,-1,-63.44,63.31)"> <tspan style="font-size: 8.75px; " x="0" y="0">o</tspan> </text> </g> </g> </svg>), and quality factor (<i >Q</i>) via grounded resistor and the use of grounded capacitors which is ideal for IC implementation.
Highlights
Analog filters are the basic building blocks and widely used for continuous-time signal processing
In the literature there are a number of voltage-mode universal biquadratic filters with single-input multipleoutputs (SIMO) [4,5,6,7,8,9,10,11,12, 18] that are available
The differential voltage current conveyors (DVCCs) is characterized by highinput impedance at the Y1 and Y2 terminals, high-output impedance at the Z+ and Z− terminals, and low impedance at the X terminal
Summary
Analog filters are the basic building blocks and widely used for continuous-time signal processing. In the literature there are a number of voltage-mode universal biquadratic filters with single-input multipleoutputs (SIMO) [4,5,6,7,8,9,10,11,12, 18] that are available These reported circuits suffer from one or more of the following drawbacks:. The DVCC is first introduced long back as a modified current conveyor by Pal [30] and developed by Elwan and Soliman in 1997 [29] It is a versatile building block, especially designed to handle differential and floating input signals [30, 31]. The DVCC is characterized by highinput impedance at the Y1 and Y2 terminals, high-output impedance at the Z+ and Z− terminals, and low impedance at the X terminal
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