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Feedback Resistance

  1. Jun 25, 2008 #1

    cks

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  2. jcsd
  3. Jun 25, 2008 #2

    cks

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    I think I find the answer, it depends on how much gain I want then I use how much resistance for the feedback resistance.

    The answer can be found from here.
     
  4. Jun 26, 2008 #3

    berkeman

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    Staff: Mentor

    Yes, the gain of the current-to-voltage stage depends on the resistance. It's definitely not 100 microOhms, though. That's probably a typo in your first post.
     
  5. Jun 27, 2008 #4

    cks

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    From the picture, the resistor is 10k ohm, so if I want to have a gain of 10, the feedback resistor has to be 100k.

    I know already. thanks for your reply.
     
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