Agilent Technologies EasyEXPERT - Page 113

2 CMOS
[Extended Test Parameters]
DrainMinRng: Minimum range for the drain current measurement
GateMinRng: Minimum range for the gate current measurement
[Cgg-Vg: Measurement Parameters]
Parallel capacitance Cp
Conductance G
[Cgg-Vg: User Function]
PI=3.141592653589
D=G/(2*PI*FREQ*Cp)
Rp=1/G
Cs=(1+D^2)*Cp
X=-1/(2*PI*FREQ*Cs)
Rs=D*abs(X)
Z=sqrt(Rs^2+X^2)
Theta=atan(X/Rs)
Vgate=-Vsource
Cp_S=Cp/Lg/Wg
Cp_W=Cp/Wg
[Cgg-Vg: X-Y Graph]
X axis: Gate voltage Vgate (LINEAR)
Y1 axis: Gate capacitance (parallel capacitance) Cp (LINEAR)
Y2 axis: Conductance G (LINEAR)
[Cgg-Vg: List Display]
Gate voltage Vgate
Parallel capacitance Cp
Conductance G
Series capacitance Cs
Series resistance Rs
Parallel resistance Rp
Dissipation factor D
Reactance X
Impedance Z
Phase Theta
[Id-Vg: Measurement Parameters]
Drain current Idrain
[Id-Vg: User Function]
gm=delta(Idrain)/delta(Vgate)
gmMax=max(gm)
[Id-Vg: Analysis Function]
Vth=@L1X (X intercept of Line1)
[Id-Vg: X-Y Plot]
X axis: Gate voltage Vgate (LINEAR)
Y1 axis: Drain current Idrain (LINEAR)
Y2 axis: Transconductance gm (LINEAR)
[Id-Vg: List Display]
Agilent EasyEXPERT Application Library Reference, Edition 8
2-51