Inverting amplifier vs Non-inverting amplifier
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    Inverting amplifier vs Non-inverting amplifier

     

    or

     

    S No.

     

    Parameter

     

    Non-inverting amplifier

     

    Inverting amplifier

     

     

    1.

     

    Type of feedback

     

    Negative, Voltage series feedback

     

    Negative, Voltage shunt feedback

     

     

    2.

     

    Gain of the feedback circuit (B)

     

    B = 1+ 

     

    B = 1+ 

     

     

    3.

     

    Closed loop voltage gain

     

    AVF =  (ideal) Or

         =  (Exact)

     

    AVF =   Or  =       (Exact)

     

     

    4.

     

    Value of closed loop
    voltage gain

     

    AVF Always greater than or equal to 1 .

     

    AVF can be greater than or less than 1.

     

     

    5.

     

    Input Resistance

     

    RiF = (1+Av)Ri

    Input resistance increases due to the negative feedback.

     

    RiF = R1 (Ideal)

    Input resistance decreases due to the negative feedback.

     

     

    6.

     

    Bandwidth

     

    fF = (1+Avβ)fo

     

    fF = (1+Avβ)fo

     

     

    7.

     

    Phase relation

     

    Input and output voltages are in phase.

     

    Input and output voltages are 180o out of phase.

     

     

     

     

    8.

     

     

     

    Configuration