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Frequency Analysis in Multisim

Discussion in 'PCB Layout, Design and Manufacture' started by John Manuel, Jun 7, 2018.

  1. John Manuel

    John Manuel

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    Jun 7, 2018
    Hi,
    I wanted to find out the range of frequencies over which an in-amp (AD620) works. I know its specified in the datasheet but have to verify it for a project. Is it possible to do it in Multisim? I am using the model of AD620 which is available within Multisim. In short, is Multisim responsive to frequency?
     
  2. Harald Kapp

    Harald Kapp Moderator Moderator

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    Nov 17, 2011
    Don't trust a simulator to give you more reliable results than a datasheet can. After all, in the simulator the amplifier is modeled after the datasheet.
    The real proof lies in the real circuit. Go ahead and build a prototype.
     
    John Manuel likes this.
  3. John Manuel

    John Manuel

    20
    0
    Jun 7, 2018
    Thank you very much for your reply!

    My main goal is to build a circuit using AD620. I don't have enough time nor resources to test AD620 experimentally. That's the reason I am resorting to simulation. I wanted to verify that the AD620 model in Multisim is sensitive to the frequency of the signal. And from your reply, I conclude that it is but not as accurate as mentioned in the datasheet.
     
  4. Harald Kapp

    Harald Kapp Moderator Moderator

    9,043
    1,811
    Nov 17, 2011
    I didn't say so, it just may be not as accurate. Creating a good model for a complex circuit is not an easy task. Often some simplifications have to be made which will not be an issue in typical applications but possibly when you drive a circuit to its limits.
     
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