C10-activities

C10-activities - ACTIVITY 10-1a R1 RF v out ACTIVITY 10-1a...

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1 ACTIVITY 10-1a 1 v 2 v 1 R F R out v F1 F out 2 1 11 RR R Show that v v v ⎛⎞ + =− ⎜⎟ ⎝⎠ ACTIVITY 10-1a 1 v 2 v 1 R F R out v 2 v 1 i 12 1 1 vv i R = 1 i out 2 1 F i R 1F F out 2 1 R v + ACTIVITY 10-1b s v c v 1 R 2 R 3 R F R out v out Find v Common Mode Signal ACTIVITY 10-1b s v c v 1 R 2 R 3 R F R out v 1cs vvv = + 1 v 3 2c 23 R = + 2 v Use Equation from 10a ACTIVITY 10-1b Use Equation from a): () 3 F out c s c 3 1 R R v v R R + => = + + F out 2 1 R v + 3F 1 FF cs 3 1 1 R(R R) v v R) R R ⎡⎤ + ⎢⎥ + ⎣⎦ ACTIVITY 10-1b s v c v 1 R 2 R 3 R F R out v 32 Let R KR ; R KR == out s Show that v Kv = −

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2 ACTIVITY 10-1b 3 F 12 R R K; K RR == 3F 1 21 1 3 2 R(R R) KR (KR R ) KR) + + = ++ 3F 1 FF out c s 3 1 1 v v v R) R R ⎡⎤ + =− ⎢⎥ + ⎣⎦ K (K 1) K 1K + + ACTIVITY 10-1b 3 F R R If: = = out c s 3 1 1 v v R + + [ ] out c s s vK K v K v K v Common Mode is Rejected! => = = − Only the Signal is Amplified Design Example DESIGN EXAMPLE Oab c
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This note was uploaded on 10/21/2010 for the course ECSE 2010 taught by Professor Millard during the Spring '08 term at Rensselaer Polytechnic Institute.

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C10-activities - ACTIVITY 10-1a R1 RF v out ACTIVITY 10-1a...

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