Title :
A low-voltage quadrature log-domain oscillator
Author :
Fragoulis, N. ; Haritantis, I.
Author_Institution :
Electron. Lab., Patras Univ., Greece
Abstract :
A new quadrature oscillator is proposed in bipolar technology. It exploits the exponential nature of bipolar transistors and thus it is suitable for low distortion operation at low supply voltage. The resulting circuits are very simple in structure and easy to design. The frequency of oscillation can be linearly controlled by the bias current. Simulation results in SPICE are given.
Keywords :
bipolar analogue integrated circuits; circuit tuning; feedback oscillators; network synthesis; radiofrequency oscillators; variable-frequency oscillators; LV quadrature log-domain oscillator; active-C blocks; bias current; bipolar technology; circuit synthesis method; low distortion operation; low supply voltage; low-voltage oscillator; oscillation frequency control; wave method; Circuit simulation; Circuit synthesis; Design methodology; Equivalent circuits; Frequency; Linearity; Low voltage; MOSFET circuits; Nonlinear filters; Oscillators;
Conference_Titel :
Electronics, Circuits and Systems, 2002. 9th International Conference on
Print_ISBN :
0-7803-7596-3
DOI :
10.1109/ICECS.2002.1045343
