+ Post New Thread
Results 1 to 7 of 7
  1. #1
    Full Member level 5
    Points: 3,971, Level: 14
    Achievements:
    7 years registered

    Join Date
    Feb 2006
    Posts
    267
    Helped
    13 / 13
    Points
    3,971
    Level
    14

    Do we name the circuit types according to their input?

    We used "differtial circuit", "single ended circuit" to decribe our circuit. It is for input and not output, right? I mean, if my citrcuit is differential input and single ended output, the circuit contains a dif-to-single converter in it. We still define it as differtial block, right?

    Thanks

    •   AltAdvertisment

        
       

  2. #2
    Advanced Member level 5
    Points: 74,061, Level: 66

    Join Date
    Oct 2004
    Location
    West Coast
    Posts
    7,942
    Helped
    2326 / 2326
    Points
    74,061
    Level
    66

    Re: differtial circuit

    Right ..

    Rgds,
    IanP


    1 members found this post helpful.

  3. #3
    Full Member level 2
    Points: 2,458, Level: 11
    Achievements:
    7 years registered
    qiushidaren's Avatar
    Join Date
    Mar 2006
    Location
    BME??BFE
    Posts
    149
    Helped
    4 / 4
    Points
    2,458
    Level
    11

    differtial circuit

    Yeah, right...



    •   AltAdvertisment

        
       

  4. #4
    Junior Member level 3
    Points: 1,621, Level: 9

    Join Date
    Aug 2004
    Posts
    26
    Helped
    0 / 0
    Points
    1,621
    Level
    9

    differtial circuit

    yeah
    But if citrcuit is differential input and single ended output and it's load resistance not current mirror,it will not restrain the common-mode signal.



  5. #5
    Full Member level 2
    Points: 4,974, Level: 16
    isaacnewton's Avatar
    Join Date
    May 2004
    Location
    Earth Village
    Posts
    143
    Helped
    12 / 12
    Points
    4,974
    Level
    16

    Re: differtial circuit

    The common-mode signal here you meant input signal or output signal?

    Since it's single-ended output, there is no common-mode signal for the output signal.

    Quote Originally Posted by hbchens
    yeah
    But if citrcuit is differential input and single ended output and it's load resistance not current mirror,it will not restrain the common-mode signal.



  6. #6
    Full Member level 6
    Points: 4,873, Level: 16

    Join Date
    Apr 2005
    Posts
    391
    Helped
    55 / 55
    Points
    4,873
    Level
    16

    Re: differtial circuit

    Quote Originally Posted by chang830
    We used "differtial circuit", "single ended circuit" to decribe our circuit. It is for input and not output, right?

    Thanks
    There are fully differential amplifiers if this is your hidden question (differential in-differential out).
    In common OA terminology you have right.
    But in RF, a single ended circuit could be the input (or the output) of transciever, as well a differential circuit could be another input (or output) of the same transciever.
    Differential versus single ended means in RF an overal gain of 3dB.

    Even a single ended output could have "common mode", but is called usually offset.



    •   AltAdvertisment

        
       

  7. #7
    Banned
    Points: 1,644, Level: 9

    Join Date
    Oct 2006
    Posts
    124
    Helped
    2 / 2
    Points
    1,644
    Level
    9

    Re: differtial circuit

    I think your answer is wright .



--[[ ]]--