How to find vout in op amp

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  • How to find vout in op amp

    • Solving for Vout which given all the resistors are the same value is simply Vout=V2−V1.

  • Courses.csail.mit.edu › spring08 › handouts › week8.
  • Therefore Vout = -Vin(R2/R1).
  • Vout = − RF RI (v1 + v2).
  • More Introductory Circuit Analysis: https://youtube.com/playlist?list=PLZPy7sbFuWVg_gefKDVDl7T8zBcD8UJJt More Network Analysis.

    • Therefore Vout = -Vin(R2/R1)..

    Operational Amplifier (OP-AMP) Formulas

    Operational Amplifiers:

    Inverting Amplifier:

    The following terms are used in the formulas and equations for Operational Amplifies.

    • Rf = Feedback resistor
    • Rin = Input Resistor
    • Vin ­­­= Input voltage
    • Vout = Output voltage
    • Av = Voltage Gain

    Voltage Gain:

    The close loop gain of an inverting amplifier is given by;

    Output Voltage:

    The output voltage is out of phase with the input voltage that is why it is known as the inverting amplifier.

    Summing Amplifier:

    Output Voltage:

    The general output of this given circuit above is;

    Inverted Amplified Sum of Input Voltage:

    if the input resistors are same, the output is a scaled inverted sum of input voltages,

    If R1 = R2 = R3 = Rn = R

    Summed Output:

    When all the resistors in the above given circuit are same, the output is an inverted sum of input voltages.

    If Rf = R1 = R2 = R3 = Rn = R;

    Vout = – (V1 + V2 + V3 +… + Vn)

    Non-Inverting Amplifier:

    Terms used for Non-Inverting Amplifier formulas and equations.

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