+ Post New Thread
Results 1 to 3 of 3
  1. #1
    Member level 3
    Points: 1,488, Level: 8

    Join Date
    Dec 2013
    Posts
    64
    Helped
    0 / 0
    Points
    1,488
    Level
    8

    Calculate impedance in circuit of an OPAmp

    hi
    in this figure, what is the seen impedance in x point by M4T mosfet?pl. explain how calculate the impedance at this point?
    pay attention that M4T is in triode region.
    do 4 bottom transistors have role in impedance?
    what different is occurred if sources of vp and vm are dissconected?why this connection is used?
    thanks
    Click image for larger version. 

Name:	2.png 
Views:	11 
Size:	23.3 KB 
ID:	157769

    •   AltAdvertisement

        
       

  2. #2
    Advanced Member level 5
    Points: 25,141, Level: 38
    barry's Avatar
    Join Date
    Mar 2005
    Location
    California, USA
    Posts
    4,815
    Helped
    1065 / 1065
    Points
    25,141
    Level
    38

    Re: Calculate impedance in circuit of an OPAmp

    Boy, you didn’t even ATTEMPT to hide the fact that you’re asking us to do your homework. Take your F, and then go find another career.



    •   AltAdvertisement

        
       

  3. #3
    Member level 3
    Points: 1,488, Level: 8

    Join Date
    Dec 2013
    Posts
    64
    Helped
    0 / 0
    Points
    1,488
    Level
    8

    Re: Calculate impedance in circuit of an OPAmp

    i leave university three years ago, i found in a paper that i had written before to ask this.
    i before sending this post i tried to solve it, but i couldn't. i posted this and i find this answer, i don't know what i must say.



--[[ ]]--