S08_Lecture07

# S08_Lecture07 - Lecture 7 ECE 324 Electronics II Doug Looze...

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February 15, 2008 Electronics II ©2008 Douglas Looze 1 Lecture 7 ECE 324 Electronics II Doug Looze

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February 15, 2008 Electronics II ©2008 Douglas Looze 2 Announcements Homework 1 due today Project 1 available on course website Next week Monday: Holiday - no class Tuesday: Monday schedule
February 15, 2008 Electronics II ©2008 Douglas Looze 3 Last Time Frequency response of differential amplifiers Active load 1 1 3 3 4 m gd db db gs gs C C C C C C = + + + + 2 2 4 4 L gd db gd db x C C C C C C = + + + +

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February 15, 2008 Electronics II ©2008 Douglas Looze 4 Differential mode gain ( 29 2 4 m o o g r r 3 2 2 m P m g f C π = 2 2 Z P f f = ( 29 1 2 4 1 2 P L o o f C r r =
February 15, 2008 Electronics II ©2008 Douglas Looze 5 Common mode gain Dominated by low frequency zero A cm s ( 29 = - R D 2 R SS 1 + sR SS C SS ( 29 f Zc = 1 2 π R SS C SS f Zc

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February 15, 2008 Electronics II ©2008 Douglas Looze 6 CMRR ( 29 ( 29 ( 29 CMRR d cm A j j A j ϖ =
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S08_Lecture07 - Lecture 7 ECE 324 Electronics II Doug Looze...

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