模拟电路设计第7章.ppt

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1、Copyright The McGraw-Hill Companies,Inc.Permission required for reproduction or display.Slides prepared by Travis N.Blalock,University of Virginia.,Frequency ResponseCh.7#1,Chapter 7Noise,Copyright The McGraw-Hill Companies,Inc.Permission required for reproduction or display.Slides prepared by Travi

2、s N.Blalock,University of Virginia.,Frequency ResponseCh.7#2,Electronic Noise,Copyright The McGraw-Hill Companies,Inc.Permission required for reproduction or display.Slides prepared by Travis N.Blalock,University of Virginia.,Frequency ResponseCh.7#3,Noise Power,Or,for convenience,Copyright The McGr

3、aw-Hill Companies,Inc.Permission required for reproduction or display.Slides prepared by Travis N.Blalock,University of Virginia.,Frequency ResponseCh.7#4,Noise Spectrum,Copyright The McGraw-Hill Companies,Inc.Permission required for reproduction or display.Slides prepared by Travis N.Blalock,Univer

4、sity of Virginia.,Frequency ResponseCh.7#5,Noise Shaping,Copyright The McGraw-Hill Companies,Inc.Permission required for reproduction or display.Slides prepared by Travis N.Blalock,University of Virginia.,Frequency ResponseCh.7#6,Noise Source Correlation,Third term vanishes for uncorrelated sources.

5、,Copyright The McGraw-Hill Companies,Inc.Permission required for reproduction or display.Slides prepared by Travis N.Blalock,University of Virginia.,Frequency ResponseCh.7#7,Correlated and Uncorrelated Noise Sources,Copyright The McGraw-Hill Companies,Inc.Permission required for reproduction or disp

6、lay.Slides prepared by Travis N.Blalock,University of Virginia.,Frequency ResponseCh.7#8,Thermal Noise,Copyright The McGraw-Hill Companies,Inc.Permission required for reproduction or display.Slides prepared by Travis N.Blalock,University of Virginia.,Frequency ResponseCh.7#9,MOSFET Thermal Noise,Par

7、ameter is typically 2/3 for long channel,as high as 2.5 for submicron devices.,Copyright The McGraw-Hill Companies,Inc.Permission required for reproduction or display.Slides prepared by Travis N.Blalock,University of Virginia.,Frequency ResponseCh.7#10,FET Ohmic Noise Sources,Copyright The McGraw-Hi

8、ll Companies,Inc.Permission required for reproduction or display.Slides prepared by Travis N.Blalock,University of Virginia.,Frequency ResponseCh.7#11,FET Flicker Noise,Copyright The McGraw-Hill Companies,Inc.Permission required for reproduction or display.Slides prepared by Travis N.Blalock,Univers

9、ity of Virginia.,Frequency ResponseCh.7#12,Flicker Noise Corner,Copyright The McGraw-Hill Companies,Inc.Permission required for reproduction or display.Slides prepared by Travis N.Blalock,University of Virginia.,Frequency ResponseCh.7#13,Noise in Circuits,Example 7.7,M1 thermal+M1 flicker+RD thermal

10、,Copyright The McGraw-Hill Companies,Inc.Permission required for reproduction or display.Slides prepared by Travis N.Blalock,University of Virginia.,Frequency ResponseCh.7#14,Input Referred Noise,Input referred noise is fictitious quantity that allows comparison between different circuits.,Copyright

11、 The McGraw-Hill Companies,Inc.Permission required for reproduction or display.Slides prepared by Travis N.Blalock,University of Virginia.,Frequency ResponseCh.7#15,Example 7.7 revisited,Copyright The McGraw-Hill Companies,Inc.Permission required for reproduction or display.Slides prepared by Travis

12、 N.Blalock,University of Virginia.,Frequency ResponseCh.7#16,Is Input Voltage Noise Sufficient?,Copyright The McGraw-Hill Companies,Inc.Permission required for reproduction or display.Slides prepared by Travis N.Blalock,University of Virginia.,Frequency ResponseCh.7#17,Input Referred Noise Voltage a

13、nd Current,Copyright The McGraw-Hill Companies,Inc.Permission required for reproduction or display.Slides prepared by Travis N.Blalock,University of Virginia.,Frequency ResponseCh.7#18,Useful Transformation,A noise source can be transformed from a drain-source current to a gate series voltage for ar

14、bitrary Zs.(page 224),Copyright The McGraw-Hill Companies,Inc.Permission required for reproduction or display.Slides prepared by Travis N.Blalock,University of Virginia.,Frequency ResponseCh.7#19,Common-Source Stage,Copyright The McGraw-Hill Companies,Inc.Permission required for reproduction or disp

15、lay.Slides prepared by Travis N.Blalock,University of Virginia.,Frequency ResponseCh.7#20,Common Gate,Copyright The McGraw-Hill Companies,Inc.Permission required for reproduction or display.Slides prepared by Travis N.Blalock,University of Virginia.,Frequency ResponseCh.7#21,Common Gate(ro large),Co

16、pyright The McGraw-Hill Companies,Inc.Permission required for reproduction or display.Slides prepared by Travis N.Blalock,University of Virginia.,Frequency ResponseCh.7#22,Common Gate Bias,Desire to minimize gm2,but this degrades active-region voltage swing.,Copyright The McGraw-Hill Companies,Inc.P

17、ermission required for reproduction or display.Slides prepared by Travis N.Blalock,University of Virginia.,Frequency ResponseCh.7#23,Common Gate 1/f noise,Copyright The McGraw-Hill Companies,Inc.Permission required for reproduction or display.Slides prepared by Travis N.Blalock,University of Virgini

18、a.,Frequency ResponseCh.7#24,Common Gate 1/f noise,Copyright The McGraw-Hill Companies,Inc.Permission required for reproduction or display.Slides prepared by Travis N.Blalock,University of Virginia.,Frequency ResponseCh.7#25,Source Follower,Copyright The McGraw-Hill Companies,Inc.Permission required

19、 for reproduction or display.Slides prepared by Travis N.Blalock,University of Virginia.,Frequency ResponseCh.7#26,Cascode Stage,Copyright The McGraw-Hill Companies,Inc.Permission required for reproduction or display.Slides prepared by Travis N.Blalock,University of Virginia.,Frequency ResponseCh.7#

20、27,Differential Pair,Copyright The McGraw-Hill Companies,Inc.Permission required for reproduction or display.Slides prepared by Travis N.Blalock,University of Virginia.,Frequency ResponseCh.7#28,Diff.Pair Cont.,Copyright The McGraw-Hill Companies,Inc.Permission required for reproduction or display.Slides prepared by Travis N.Blalock,University of Virginia.,Frequency ResponseCh.7#29,Diff.Pair Cont.,Copyright The McGraw-Hill Companies,Inc.Permission required for reproduction or display.Slides prepared by Travis N.Blalock,University of Virginia.,Frequency ResponseCh.7#30,Noise Bandwidth,