Op Amp dif. CM inp. imp.

 The differential and common mode input impedance of the op amp transistor models ...

 

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The circuits for determining the AvOL (open loop gain) of the op amp

´ 741 ::

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LM324 equivalent transistor model ::

Av ≈ 1.42·10⁶

Av ≈ 1.43·10⁶

Av ≈ 1.48·10⁶

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Univeral Op Amp for probing the CM input range

(in pictures)

A universal ("enough") Op Amp

Old CM Inp-rg. test

New CM Inp-rg. test

 

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