Hi everyone,
I'm trying to implement a Wien Bridge oscillator running at 500kHz sine wave for my project. I'm using a MCP629x operational amplifier.
http://ww1.microchip.com/downloads/en/DeviceDoc/21812e.pdf
Calculating f = 1/2πRC, I've chosen a C = 10nF and R = 33Ω for my circuit.
But after I have implemented the circuit on a breadboard, i'm only able to get 335kHz as shown above. And the sine wave doesn't seems to be a nice sine wave with some distortion. I tried to use lower values of C and higher values of R but the problem arises. Does that mean is there a problem in the operational amplifier or the problems lies with my drawn schematic which is shown below. Thank you very much.
I'm trying to implement a Wien Bridge oscillator running at 500kHz sine wave for my project. I'm using a MCP629x operational amplifier.
http://ww1.microchip.com/downloads/en/DeviceDoc/21812e.pdf
Calculating f = 1/2πRC, I've chosen a C = 10nF and R = 33Ω for my circuit.
But after I have implemented the circuit on a breadboard, i'm only able to get 335kHz as shown above. And the sine wave doesn't seems to be a nice sine wave with some distortion. I tried to use lower values of C and higher values of R but the problem arises. Does that mean is there a problem in the operational amplifier or the problems lies with my drawn schematic which is shown below. Thank you very much.
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