Title :
A methodology for sinusoidal oscillator design to adjust for amplifier slew rate and bandwidth limitations
Author :
Li, Ye-Ming ; Connelly, J.Alvin
Author_Institution :
Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA, USA
Abstract :
This work develops a methodology to position the oscillation frequency close to the maximum usable bandwidth of an operational amplifier. A practical example using the LF351 operational amplifier with an fT=4 MHz illustrates the methodology. A sinusoidal 440 kHz oscillator with a 1 Vp-p amplitude produced a total harmonic distortion of 1.33% and a phase noise of -65 dBc at 1 kHz offset
Keywords :
automatic gain control; bridge circuits; harmonic distortion; network synthesis; operational amplifiers; oscillators; phase noise; 1 V; 440 kHz; AGC; LF351 op amp; THD; Wien bridge oscillator; amplifier slew rate; bandwidth limitations; design methodology; maximum usable bandwidth; operational amplifier; oscillation frequency; phase noise; sinusoidal oscillator design; total harmonic distortion; Band pass filters; Bandwidth; Circuits; Frequency response; Operational amplifiers; Oscillators; Phase distortion; Phase noise; Steady-state; Total harmonic distortion;
Conference_Titel :
Mixed-Signal Design, 2001. SSMSD. 2001 Southwest Symposium on
Conference_Location :
Austin, TX
Print_ISBN :
0-7803-6742-1
DOI :
10.1109/SSMSD.2001.914943
