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Homework Statement
Hello,
I'm studying real op-amps and looking the inverting amplifier circuit for a non-ideal op amp model. I'm confused as to where one of the equations from the assumption of zero output current came from, as I get a slightly different one.
I've attached the circuit diagram.
Homework Equations
1. From assumption of zero input for ideal, which requires Zin >> R1, R2and v1 (inverting input) = vd, and v2 (non-inverting input) = 0.
I get vd = [R1 / (R1 + (R2)]vin + βv0
The Attempt at a Solution
For the 2nd assumption of zero output impedance requires Z0 << R2
I get the equation: v0 = AOLvd - i0Z0
but the book says: v0 = - AOLvd - i0Z0