Title :
An Efficient Oscillator Design Based on OTA Nonlinearity
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 OTA nonlinearity as a choice for amplitude limiting, and introduce a general method for its use in OTA-C oscillators. We illustrate our discussion with an example design that we fabricated and tested. Our results show that OTA nonlinearity yields low-distortion oscillators at practically no power- or area cost
Keywords :
nonlinear network analysis; operational amplifiers; oscillators; OTA nonlinearity; OTA-C oscillators; amplitude-limiting mechanism; analog sinusoidal oscillator; low-distortion oscillators; Analog computers; Attenuation; Circuits; Design engineering; Limiting; Nonlinear distortion; Oscillators; Transconductance; Transfer functions; Voltage;
Conference_Titel :
Circuits and Systems, 2007. ISCAS 2007. IEEE International Symposium on
Conference_Location :
New Orleans, LA
Print_ISBN :
1-4244-0920-9
Electronic_ISBN :
1-4244-0921-7
DOI :
10.1109/ISCAS.2007.378076
