log amplifier

Discussion in 'Homework Help' started by jeni4vijay, Aug 23, 2011.

  1. jeni4vijay

    Thread Starter New Member

    Jun 24, 2011
    13
    0
    Hi there,

    Please answer this question.


    For a log amp Rin (Input resistance) = 5.6k ,Is (Reverse saturation Current) = 0.16pA and Vin = 10mV,

    The question is:
    Estimate the expected gain as a change of Vout per decade.

    Thanks in advance
     
  2. Jony130

    AAC Fanatic!

    Feb 17, 2009
    3,957
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    Where is you attempt to solve the problem ?
     
  3. ErnieM

    AAC Fanatic!

    Apr 24, 2011
    7,387
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    I see it, it's right here:

     
  4. jeni4vijay

    Thread Starter New Member

    Jun 24, 2011
    13
    0
    Please give me the answer

    simply the question is Estimate its gain in ΔVo/decade.
     
  5. t_n_k

    AAC Fanatic!

    Mar 6, 2009
    5,448
    782
    Looks like ~60mV per decade.
     
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