Help analyzing a circuit

Discussion in 'Homework Help' started by pww, Feb 26, 2010.

  1. pww

    Thread Starter New Member

    Feb 5, 2010
    7
    0
    I'm stuck on this problem where we need to determine the 3 dB bandwidth if the op amp is the LMP 2231 biased with a single dc power supply.

    I figured that the GB = 130 Khz. and I derived K to be 2/3 using the equation Vout = Vin[ (40/(20+40)) * (1+ 20/20)]. But I have no idea if this is right. Am I supposed to use the equation GB = K*BW and solve for BW?
     
  2. pww

    Thread Starter New Member

    Feb 5, 2010
    7
    0
    Basically what I am asking is what is the transfer function for this circuit and what equation do I use to find the 3 dB bandwidth
     
  3. jstrike21

    Member

    Sep 24, 2009
    104
    0
    I believe you are right, just put the k you got into the equation you have and solve for BW
     
Loading...