Introduction

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Introduction

1/23/2011OP AMP INTERNAL BLOCK DIAGRAMConsist of 3 stages:Stage 1 –Stage 2 –Stage 3 –input stagecentre stageOutPput stageIt is designed in 3 stages to avoid problem when the input signal is weakand avoid from noise such as static interference, signal interference frompower supply.23InvertinginputNoninvertinginputDifferentialinput stagewith high inputimpedanceCentreamplifierstageOutput stagewith low outputimpedanceO/pBlock diagram of operational amplifier2412

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