NDLI: Current Conveyor-Based Square/Triangular Waveform Generators With Improved Linearity

Content Provider	IEEE Xplore Digital Library
Author	Pal, D. Srinivasulu, A. Pal, B.B. Demosthenous, A. Das, B.N.
Copyright Year	1963
Abstract	Two second-generation current conveyor (CCII+)-based resistance-capacitance (RC) square/triangular waveform generators, which have been derived from their voltage-mode op-amp-based schemes, with independent control of frequency are presented in this paper. Each configuration consists of two positive second-generation conveyors (CCII(+)-ldquoArdquo and CCII(+)-ldquoBrdquo), three resistors, and one floating capacitor that is responsible for better linearity. The frequency of the waveform generators can independently be adjusted with any passive device. The circuits were built with commercially available current feedback operational amplifiers (AD844) and passive components used externally and tested for waveform generation and tunability. The measured results included in the paper show excellent linear variation of frequency as compared with existing reported configurations over the range from 25 Hz to 260 kHz. The configurations that are suitable for very large scale integration (VLSI) realization find application in capacitive and resistive sensors and in neuro-fuzzy systems.
Sponsorship	IEEE Instrumentation and Measurement Society Bureau international des poids et mesures IEEE International Bureau of Weights and Measures (BIPM) URSI NBS Agency Ind. Sci. & Technol., Min. Int. Trade & Ind. Sci. Council Japan International Union of Pure and Applied Physics (IUPAP) NIST NRCC National Conference of Standards Laboratories (NCSL) Allen Osborne Associates Andeen-Hagerling, Inc. Ballantine Lab. Inc. Clarke-Hess Communications Research Corp. Fluke Corporation Guildline Instruments Hewlett-Packard Co. Julie Res. Lab. Inc. Keithley Instruments, Inc. Measurements International Ltd. Canada QuadTech Inc. Quantum Design Inc. Rotek Instrum. Corp. Tegam Inc. Tektronix Inc
Starting Page	2174
Ending Page	2180
Page Count	7
File Size	266207
File Format	PDF
ISSN	00189456
Volume Number	58
Issue Number	7
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-07-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Signal generators Linearity Frequency Operational amplifiers Circuit testing Very large scale integration Radio control Voltage control Resistors Capacitors triangular wave generator Current conveyor (CCII+) hybrid matrix square wave generator
Content Type	Text
Resource Type	Article
Subject	Instrumentation Electrical and Electronic Engineering

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Current Conveyor-Based Square/Triangular Waveform Generators With Improved Linearity

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