S08_Lecture02 - Lecture 2 ECE 324 Electronics II Doug Looze...

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February 4, 2008 Electronics II ©2008 Douglas Looze 1 Lecture 2 ECE 324 Electronics II Doug Looze
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February 4, 2008 Electronics II ©2008 Douglas Looze 2 Last Time Differential pair Modes Common Differential ( 29 1 2 1 2 cm G G v v v = + 1 2 id G G v v v = - 1 2 id G cm v v v = + 2 2 id G cm v v v = - Differential Pair cm v 2 id v cm v 2 id v -
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February 4, 2008 Electronics II ©2008 Douglas Looze 3 Common Mode Analysis
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February 4, 2008 Electronics II ©2008 Douglas Looze 4 Today Saturation Differential mode analysis Reading S&S 7.1-7.2
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February 4, 2008 Electronics II ©2008 Douglas Looze 5 Saturation? Assumed saturation Is it? Depends on current through transistors Determined by gate voltages Determined by common mode voltage DS GS T v v V - KVL (either side) ( 29 2 DD D cm GS GS T I v R v v v V - - - -
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February 4, 2008 Electronics II ©2008 Douglas Looze 6 Saturation? (cont.) ( 29 2 DD D cm GS GS T I v R v v v V - - - - GS T N I v V K = + 2 DD D cm T T T N N I I I v R v v V V K K - - - - + - 0 2 DD D cm T I v R v V - - +
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This note was uploaded on 04/16/2008 for the course ECE 324 taught by Professor Looze during the Spring '08 term at UMass (Amherst).

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S08_Lecture02 - Lecture 2 ECE 324 Electronics II Doug Looze...

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