Single-resistance-tunable oscillators using a single CFOA and two grounded capacitors

Abstract

An exhaustive literature survey on current feedback op-amps (CFOA)-based oscillators circuits indicates that till date, no canonic single-CFOA-based single resistance controlled oscillators (SRCO) employing two grounded capacitors (GC) has ever been discovered so far. The main object of this communication is to present eight new single resistance tunable oscillators (SRTO) each of which uses only one CFOA, six resistors and two grounded capacitors. The workability of the presented SRTOs has been demonstrated by the experimental results using commercially available AD844-type integrated circuit CFOA.