Abstract
This paper demonstrates the practicality of the current feedback operational amplifier (CFOA) in realizing grounded capacitor (or grounded resistor) oscillator circuits. The paper begins with a description of the minimum passive component oscillators, using one or two CFOAs. Next, two new single CFOA oscillators with independent control on the condition of oscillation are generated from the single CFOA minimum component oscillator. Three new oscillator circuits using two CFOAs are introduced. Grounded capacitor and grounded resistor oscillators using three CFOAs with independent control on the condition of oscillation and on the frequency of oscillation are also included. The proposed grounded component oscillators are suitable for VLSI implementation. PSpice simulations and experimental results demonstrating the performance of some of the proposed oscillators are given.
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Soliman, A.M. Current Feedback Operational Amplifier Based Oscillators. Analog Integrated Circuits and Signal Processing 23, 45–55 (2000). https://doi.org/10.1023/A:1008391606459
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DOI: https://doi.org/10.1023/A:1008391606459