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operational amplifier - Calculation of the input resistance of an op amp circuit - Electrical Engineering Stack Exchange
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Derivation of Non-Inverting Op-Amp, Closed loop gain, Input Impedance, Output Impedance In English - YouTube
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Review of Linear Op-Amp Circuits We will quickly review the analysis & design of linear op-amp circuits that use negative feedback: Non-inverting amplifier. - ppt download
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