Title :
Theory and Design of OTA-C Oscillators with Native Amplitude Limiting
Author :
Odame, Kofi M. ; Hasler, Paul
Author_Institution :
Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA
Abstract :
An analog sinusoidal oscillator usually involves some form of amplitude-limiting mechanism. We examine operational-transconductance-amplifier (OTA) nonlinearity as a choice for amplitude limiting and develop a general theory for its use in OTA-capacitor (OTA-C) oscillators. We facilitate our theoretical discussion with an illustrative design example that we fabricated and tested.
Keywords :
limiters; operational amplifiers; OTA-C oscillators; analog sinusoidal oscillator; native amplitude limiting; nonlinear oscillators; operational-transconductance-amplifier nonlinearity; Nonlinear oscillators;
Journal_Title :
Circuits and Systems I: Regular Papers, IEEE Transactions on
DOI :
10.1109/TCSI.2008.925819
