Hi,
I need to build a sin generator at a freq of 1 MHz, and Vpp of 10-20 volts.
I've built a Wein birdge and and used 741 Op Amp. But i got a nice sin only for freq up to 100 KHz. I tried to switch to a AD8042, op amp, that has a better BW, but with no sucsses.
I would appreciate any ideas how to get a nice sinus wave to meet these requirements.
What does "with no success" mean in this regard?
- It didn't work, but you didn't further check why?
- You know, what's the problem, but didn't wan't to tell?
I'm rather sure, that you can build a 1 MHz Wien bridge oscillator wieth AD8041 or 8042 (dual AD8041), at least the OP is fast enough.
But it's limited to +/- 5V supply, so it won't fulfill your level requirement.
Ok. Thanks for the information about the op amp.
Can you please send me a circuit of a good oscillator? or tell me what the scillator name is? or any reference to this circuit on the web...
What is a good car? Do you have an answer?
You should tell us something about your requirements:
*Tunability?
*Frequency stability?
*maximum THD?
*amplitude exactness and stability?
*number of allowed opamps
*Did I forgot something??