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 Circuit Conditions--Are all MOS operating in active region? 

Last post Wed, Oct 6 2010 5:21 AM by EESJ. 2 replies.
Started by EESJ 26 Aug 2010 07:37 AM. Topic has 2 replies and 2057 views
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  • Thu, Aug 26 2010 7:37 AM

    • EESJ
    • Not Ranked
    • Joined on Fri, Sep 12 2008
    • san jose, CA
    • Posts 4
    • Points 65
    Circuit Conditions--Are all MOS operating in active region? Reply

    I am a little confused on the use of the circuit conditions tool in spectre. Will spectre highlight a transistor when it is operating in active region or when the device is in its triode region?

     

     

     

     

    • Post Points: 20
  • Tue, Oct 5 2010 9:26 PM

    • battu
    • Not Ranked
    • Joined on Wed, Oct 6 2010
    • Posts 4
    • Points 65
    Re: Circuit Conditions--Are all MOS operating in active region? Reply

     It indicates the transistors in the linear region and the bjt in the saturated region

    • Post Points: 20
  • Wed, Oct 6 2010 5:21 AM

    • EESJ
    • Not Ranked
    • Joined on Fri, Sep 12 2008
    • san jose, CA
    • Posts 4
    • Points 65
    Re: Circuit Conditions--Are all MOS operating in active region? Reply

    Hi Battu,

     

    I understand this function, but say I am biasing a transistor at the edge of triode ...Will this be highlighted? Say I can clearly see on DC annotation that my transistor is in saturation ie Vgs-Vth < Vds....why is the transistor still highlighted? An example of this would be a simple diode connected transistor.

     

     

     

     

    • Post Points: 5
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Started by EESJ at 26 Aug 2010 07:37 AM. Topic has 2 replies.