hello,

I need help in making a sine wave generator with variable frequency output, range 10khz-1000khz, and current amplitude 1mA-5mA.
I tried making one with MAX038 but the circuit that I have is for fixed frequency of 122kHz. Here is the link to that circuit :
http://www.electronics-lab.com/projects/oscillators_timers/003/index.html

can u modify this circuit for variable frequency output? and I hope that does not require any programming. Or if you can provide me with another schematic, for generating the required sine wave, it would be equally helpful.

On a different note, I need this generator in making an Impedance Plethysmograph (IPG). So, if you have any idea or schematics to help me in making the instrument I will be grateful to you. I have even started a new thread for the IPG in the same forum. If you are interested please check that out too and help if possible.

Thank you.

 

I found this post moderated. I suspect it was the link that did it.

Medical devices are out side my field of expertise, as it is for many people I suspect. This being an open forum, take any advice with caution.

 

One second thought, I'm closing this thread, since you were able to successfully open a second one on the same subject.

We'll continue it over here...

Impedance Plethysmograph