Title :
A low-power low-voltage OTA-C sinusoidal oscillator with more than two decades of linear tuning range
Author :
Galán, J. ; Carvajal, R.G. ; Muñoz, F. ; Torralba, A. ; Ramírez-Angulo, J.
Abstract :
A low power, low voltage OTA-C sinusoidal oscillator based on a class AB linear transconductor is proposed. For a tuning voltage range from 5 mV to 500 mV, the oscillation frequency changes more than two decades (from 200 kHz to 21.5 MHz). The amplitude is controlled by the transconductor nonlinear characteristic. The circuit operates at a 2 V supply voltage with only 1.52 mW of maximum quiescent power consumption. The oscillator has been laid out using a 0.8 μm CMOS technology.
Keywords :
CMOS analogue integrated circuits; circuit tuning; low-power electronics; operational amplifiers; radiofrequency oscillators; voltage-controlled oscillators; 0.8 micron; 1.52 mW; 2 V; 200 kHz to 21.5 MHz; 5 to 500 mV; CMOS technology; OTA-C sinusoidal oscillator; amplitude control; class AB linear transconductor; linear tuning range; low power oscillator; low voltage oscillator; oscillation frequency; transconductor nonlinear characteristic; tuning voltage range; Capacitors; Circuits; Communication system control; Energy consumption; Frequency; Transconductance; Transconductors; Tuning; Voltage; Voltage-controlled oscillators;
Conference_Titel :
Circuits and Systems, 2003. ISCAS '03. Proceedings of the 2003 International Symposium on
Print_ISBN :
0-7803-7761-3
DOI :
10.1109/ISCAS.2003.1205654
