InvAmp - The Inverting Amplifier v 2 is the node voltage at...

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The Inverting Amplifier 2 v is the node voltage at the reference node (ground), so 2 0 v = . The op amp is ideal so 12 vv = . (All op amps are ideal in this course.) Consequently, 0 = = Apply KCL at the node connected to the inverting input of the op amp to get s1 1o s o f if i f i 4 v v R iv RR R R R −− =+ = = = s s v v Beware: Both of si vR =− and o = f are sometimes called the “gain” of the inverting amplifier. Apply KCL at the output node of the op amp to get o f L f L f oo o o f L f L fL i 11 v R R R R R ii R R R R R ⎛⎞ −+ = + + ⎜⎟ ⎝⎠ s v + or () 44 3 os s iL 21 0 1 0 0.6 10 0 v + ×+ == = × × s v The power received by the op amp is
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ff L f f L 23 oo s s s s ii L i i L 2.4 10 RR R R R R vi v v v v R R R R ⎛⎞ ++ = − =− × ⎜⎟ ⎝⎠ 2 The power supplied by the op amp is 32
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This note was uploaded on 05/10/2008 for the course EEL 3004 taught by Professor Gong during the Spring '08 term at University of Central Florida.

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InvAmp - The Inverting Amplifier v 2 is the node voltage at...

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