Two Simple Analog Multiplier Based Linear VCOs Using a Single Current Feedback Op-Amp

Data Ram Bhaskar, Raj Senani, Abdhesh Kumar Singh, Shanti Swarup Gupta

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DOI: 10.4236/cs.2010.11001                

Abstract

Two simple voltage-controlled-oscillators (VCO) with linear tuning laws employing only a single current feedback operational amplifier (CFOA) in conjunction with two analog multipliers (AM) have been highlighted. The workability of the presented VCOs has been demonstrated by experimental results based upon AD844 type CFOAs and AD534 type AMs.

Keywords

Voltage-Controlled Oscillators, Current Feedback Op-Amps, Current-Mode Circuits, Analog Multipliers

Conflicts of Interest

The authors declare no conflicts of interest.

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