Title :
The continuous-time MOSFET-C Wien-bridge oscillator circuits for VLSI
Author :
Kim, Dong Yong ; Shin, Kyoo Jae ; Shin, Gun Soon ; Ismail, Moharmed
Author_Institution :
Dept. of Electr. Eng., Chonbuk Nat. Univ., Chonju, South Korea
Abstract :
An improved Wien bridge oscillator circuits consisting of a novel MOSFET-capacitor gain amplifier is proposed. The performance of the improved oscillator was tested using a characteristics equation and open-loop measurement. The resulting circuit has extended the range of operation of the oscillator. The circuits do not suffer from the inherent problems encountered in SC-circuits, and need not be limited to simple antialiasing and smoothing filters. The proposed circuits can be fully integrated using a standard MOSFET technology because the elements of the circuits are MOS op-amps, depletion NMOSs, and capacitors. Schottky-diode analysis is considered as an example
Keywords :
MOS integrated circuits; VLSI; field effect integrated circuits; oscillators; MOSFET technology; MOSFET-capacitor gain amplifier; Schottky-diode; VLSI; Wien-bridge oscillator; depletion NMOS; Bridge circuits; Circuit testing; Equations; Filters; Integrated circuit measurements; Integrated circuit technology; MOSFET circuits; Operational amplifiers; Oscillators; Smoothing methods;
Conference_Titel :
Circuits and Systems, 1988., IEEE International Symposium on
Conference_Location :
Espoo
DOI :
10.1109/ISCAS.1988.15500
