Universal Current-Mode Biquad Filter Using a VDTA

Dinesh Prasad, Data Ram Bhaskar, Mayank Srivastava

D/O Electronics and Communication Engineering, Amity School of Engineering and Technology, Amity University, Noida, India.
Department of Electronics and Communication Engineering, Faculty of Engineering and Technology, Jamia Millia Islamia, New Delhi, India.

DOI: 10.4236/cs.2013.41006                

Abstract

This paper presents a new current-mode single input multi output (SIMO) type biquad employing one voltage differencing transconductance amplifier (VDTA), two grounded capacitors and a single grounded resistor. The configuration realizes all basic filter functions (i.e. Low Pass (LP), High Pass (HP), Band Pass (BP), Notch (BR) and All Pass (AP)). The natural frequency (ω₀) and bandwidth (BW) are independently tunable. The workability of proposed configuration has been verified using SPICE simulation with TSMC CMOS 0.18 μm process parameters.

Keywords

Current Mode Filter; Voltage Differencing Transconductance Amplifier

Conflicts of Interest

The authors declare no conflicts of interest.

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