Sine wave generator with frequency 10khz-1000kz & current amp 1mA-5mA

Discussion in 'The Projects Forum' started by as4, Jul 17, 2012.

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  1. as4

    Thread Starter New Member

    Jul 16, 2012
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    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.
     
  2. Wendy

    Moderator

    Mar 24, 2008
    20,765
    2,536
    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.
     
  3. Wendy

    Moderator

    Mar 24, 2008
    20,765
    2,536
    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
     
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