How to find Av for this circuit?

Discussion in 'Analog & Mixed-Signal Design' started by alaa7assan, Dec 4, 2017.

  1. alaa7assan

    Thread Starter New Member

    Sep 16, 2017
    4
    0
    I have ran a stimulation on multisim and I calculated out that the Av is around 38 V/V am not very sure about it can you guys please take a look..
    upload_2017-12-4_18-12-4.png
    upload_2017-12-4_18-12-45.png
    upload_2017-12-4_18-13-0.png
     
  2. DickCappels

    Moderator

    Aug 21, 2008
    5,579
    1,745
    The simulation appears to be giving the correct answer.

    Emitter resistance, re is equal to approximately (26 ohms/millimps) so re is about 78.9 ohms. The collector load is 12k/2 = 6k. The ratio of the two isi 6k/79 = 76, which is about what it shows in the simulation.
     
    alaa7assan likes this.
  3. alaa7assan

    Thread Starter New Member

    Sep 16, 2017
    4
    0
    thank you DickCappels for your your time I highly appreciate it.
     
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