Circuits & Electronics P19

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Circuits & Electronics P19

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The Operational Amplifier Abstraction 6.002 Fall 2000 Lecture 19 1 .Review MOSFET amplifier — 3 ports + + input vI port – + vO output port – VS power port – Amplifier abstraction VS + vI – + + v – O vI vO Function of vI – 6.002 Fall 2000 Lecture 19 2 .Review vI vO Function of vI Can use as an abstract building block for more complex circuits (of course, need to be careful about input and output). Today Introduce a more powerful amplifier abstraction and use it to build more complex circuits. Reading: Chapter 15 from A & L. 6.002 Fall 2000 Lecture 19 3 .Operational Amplifier Op Amp VS power port output port + – + – input port + – −VS More abstract representation: + vIN –...

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