wanna get Vgs in pspice

Discussion in 'Homework Help' started by Taesung, Dec 14, 2014.

  1. Taesung

    Thread Starter New Member

    Dec 14, 2014
    2
    0
    i have NMOSOP5 in pspice

    its specification is

    * Level-1 Model for NMOS in model 0.5um CMOS Technology
    * (created by Anas Hamoui & Olivier Trescases)
    .model NMOS0P5 NMOS(Level=1 VTO=0.7 GAMMA=0.5 PHI=0.8
    + LD=0.08E-06 WD=0 UO=460 LAMBDA=0.001 TOX=9.5E-9 PB=0.9 CJ=0.57E-3
    + CJSW=120E-12 MJ=0.5 MJSW=0.4 CGDO=0.4E-9 JS=10E-9 CGBO=0.38E-9
    + CGSO=0.4E-9)

    upload_2014-12-14_23-25-58.png

    in this pic

    how do i get Vgs if Id1 = 10mA .

    tnx
     
  2. Taesung

    Thread Starter New Member

    Dec 14, 2014
    2
    0
    in saturation region !!
     
  3. crutschow

    Expert

    Mar 14, 2008
    13,000
    3,229
    Simulate the circuit and use a slow ramp voltage for Vdd (you can do the with a pulse voltage source and setting a slow rise-time, say 1 ms).
    At the point Id1 = 10mA, measure Vgs.
     
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