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Recent content by petelee

  1. P

    [SOLVED] Regarding cascode stage with resistive load

    I think I almost figured out. So I'm marking as Solved.
  2. P

    [SOLVED] Regarding cascode stage with resistive load

    Hi Dominik, Could you explain with the procedures of equations to get the RLc expression? I still have no idea. Thanks~~
  3. P

    [SOLVED] Regarding cascode stage with resistive load

    The attached is from the book, "Analog design essentials". Slide number is 0251. Could anybody know how to get the RLc=gm*rDS*RB?
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    [SOLVED] Help on calculating resistor 1/f noise

    Hi Analog experts, I'm studying these slides found in **broken link removed** . You can find this by googling "noise performance of elementary transistor stages". In the page 10 (Slide number 0410) titled "A resistor also has 1/f noise", I tried to calculate sqrt(dvRf^2) but I got only 70.7n...
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    [SOLVED] A question about "analog design essentials" book

    i figured that "ct" might stand for "constant" and "~" mean "proportional".
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    [SOLVED] A question about "analog design essentials" book

    Hi Analog expert, I have a question regarding this material which is from the book "Analog design essentials". Below is the link we can find in the website if you search for "Miller CMOS OTA Springer" with google. https://www.google.com/url?sa=t&rct=...57799294,d.b2I From page 18, there's a...
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    [SOLVED] Regarding gm vs compensation cap

    Thanks a lot for confirming the number. You and the book are correct. I just realized that I made a stupid mistake in my calculation with excel table.
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    [SOLVED] Regarding gm vs compensation cap

    Hi Analog expert~ I have a question regarding this material. Below is the link we can find in the website if you search for "Miller CMOS OTA Springer" with google...
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    [SOLVED] Compensation capacitor size in Class AB output stage

    Thanks all for valuable advice~~
  10. P

    Looking for help understand some wording about class AB output stage

    Hi, I found this in a textbook about the attached class AB output stage. For the 2nd attached picture, there's a description like below. "It is now easy to calculate the gain of this amplifier. The input stage provides a conversion of gm1. The total gain also includes the transconductance...
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    [SOLVED] Compensation capacitor size in Class AB output stage

    Hi Analog experts, I'm studying an IEEE paper("http://ieeexplore.ieee.org/xpl/login.jsp?tp=&arnumber=272096&url=http%3A%2F%2Fieeexplore.ieee.org%2Fxpls%2Fabs_all.jsp%3Farnumber%3D272096"). Can anybody let me know any published text books or documents to explain how to determine the compensation...
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    [SOLVED] Second pole location with compensated opamp

    Hi Nitishn5, I think you don't need to answer my question. I opened the old text book of circuit theory to recall the basics of rc circuits. Based on your comments and RC circuit theory, now I think I can understand why it meets KCL. I forgot the basics. :) Thanks for your help.
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    [SOLVED] Second pole location with compensated opamp

    Thanks for detailed explanation. I'd like to re-phrase my question in other way. Basically, I don't still get how physically the gate and drain of M5 at a certain high frequency have same voltage. But, if I just believe blindly that the gate and drain of M5(two nodes of Cc) have the same...
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    [SOLVED] Second pole location with compensated opamp

    Thanks a lot Nitishn5~~ Now I can clearly understand why it has diode connection in ac signal domain assuming the Cc acts a short circuit. I have another question. What is the impedance of CL when Cc becomes virtually a short connection? Isn't it much lower impedance in the same high frequency...
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    [SOLVED] Second pole location with compensated opamp

    Hi Analog experts, I'm seeing this material in this link people.seas.harvard.edu/~jones/es154/lectures/lecture_6/pdfs/lecture37.pdf. In page 8, there's this below description. I don't understand physically how it can be diode-connected. If it's diode-connected at a certain frequency, the drain...

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