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Analysis and design of self‐limiting single‐OP‐AMP RC oscillators
Author(s) -
Huertas José L.,
PérezVerdú Belén,
RodríguezVázquez Angel
Publication year - 1990
Publication title -
international journal of circuit theory and applications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.364
H-Index - 52
eISSN - 1097-007X
pISSN - 0098-9886
DOI - 10.1002/cta.4490180107
Subject(s) - slew rate , limiting , sensitivity (control systems) , linearity , bandwidth (computing) , control theory (sociology) , operational amplifier , mathematics , topology (electrical circuits) , electronic engineering , physics , computer science , engineering , electrical engineering , telecommunications , amplifier , combinatorics , mechanical engineering , control (management) , voltage , artificial intelligence
This paper considers the design of self‐limiting single‐op‐amp RC oscillators inside the frequency range where the slew rate is the dominant non‐linearity. It is first demonstrated that limitation by the slew rate yields zero first‐order frequency sensitivity with respect to changes in the op amp gain‐bandwidth product ( GB ). Design procedures are then outlined for each of the structures comprising the complete set of canonical RC oscillators. Sensitivity figures providing criteria for comparison between the different structures are also included. Finally, experimental results are shown illustrating the validity of the proposed techniques.