MISO-Type Voltage-Mode Universal Biquadratic Filter Using Single Universal Voltage Conveyor

Kanhaiya Lal Pushkar,Kavya Gupta

doi:10.4236/cs.2017.89015

Abstract

A universal biquadratic filter using single universal voltage conveyor (UVC), two resistors and two capacitors is presented in this paper. The proposed structure has three inputs and one output and can realize all the five standard biquadratic filters: low-pass (LP), high-pass (HP), band-pass (BP), band-reject (BR) and all-pass (AP) from the same circuit configuration. The presented universal filter offers low active and passive sensitivities. SPICE (Version 16.5) simulation results using 0.18 μm TSMC technology have been included.

Highlights

There is a growing interest in the design of single-input multi-output (SIMO) or multi-input single-output (MISO) voltage-mode (VM) or current-mode (CM) universal filter configurations, due to their flexibility and versatility for practical applications [1]
A universal biquadratic filter using single universal voltage conveyor (UVC), two resistors and two capacitors is presented in this paper
The voltage and current selected for CMOS implementation of UVC are ±1.9 V and 100 μA, respectively

Summary

Introduction

There is a growing interest in the design of single-input multi-output (SIMO) or multi-input single-output (MISO) voltage-mode (VM) or current-mode (CM) universal filter configurations, due to their flexibility and versatility for practical applications [1]. In literature [2]-[8], filter configurations employing different active building blocks/devices (such as current differencing transconductance amplifier (CDTA), current differencing buffered amplifier (CDBA), modified current feedback operational amplifier (MCFOA), current feedback operational amplifier (CFOA) and voltage differencing voltage transconductance amplifier (VDVTA)) have been presented over the past few years. Multifunction filter structures have been presented in [9], where structures employing three UVCs could realize only three basic filters (i.e. LP, HP, and BP). In [10], authors have proposed three multi-function filter structures employing: i) Three UVCs which can realize three basic filters i.e. LP, HP, and BP. Gupta four basic filters i.e. LP, HP, BP and, AP. Iii) Single UVC which can realize four basic filters i.e. LP, HP, BP and, AP Gupta four basic filters i.e. LP, HP, BP and, AP. iii) Single UVC which can realize four basic filters i.e. LP, HP, BP and, AP

Objectives

Results

Conclusion