Title :
On the design of micropower active resonators and oscillators using log-domain processing
Author :
Ngarmnil, J. ; Thanachayanont, A. ; Toumazou, C. ; Pookaiyaudom, S.
Author_Institution :
Dept. of Electr. & Electron. Eng., Imperial Coll. of Sci., Technol. & Med., London, UK
Abstract :
A novel current-mode micropower active resonator and oscillator employing MOSFETs operating in weak inversion are proposed. The approach is an extension of the recently proposed current-mode bipolar log domain synthesis methodology. Simulation results using HSPICE demonstrate that a very high-Q active resonator tunable over several kHz and a very low distortion oscillator can be synthesised using simple processing building blocks, with net power consumption of less than a microwatt
Keywords :
MOS analogue integrated circuits; Q-factor; electric distortion; gyrators; integrated circuit design; linear network synthesis; oscillators; resonators; state-space methods; HSPICE; MOSFETs; current-mode oscillator; current-mode resonator; high-Q resonator; log domain synthesis methodology; log-domain processing; low distortion oscillator; micropower active resonators; oscillator design; tunable resonator; weak inversion operation; Circuit simulation; Circuit synthesis; Dynamic range; Educational institutions; Equations; MOSFETs; Oscillators; Transfer functions; Tunable circuits and devices; Voltage;
Conference_Titel :
Electronics, Circuits, and Systems, 1996. ICECS '96., Proceedings of the Third IEEE International Conference on
Conference_Location :
Rodos
Print_ISBN :
0-7803-3650-X
DOI :
10.1109/ICECS.1996.582779
