biprangshu
Newbie
Hi all,
We all know about the C-V characteristics of a MOS (MOSCAP Or MOSFET). It is the gate capacitance at different Vg.
I am trying to extract the C-V characteristics in spice. The process is like this
nmos1 0 gate 0 0 nmos L=0.180U W= 0.270U
Vin gate 0 DC 0 sin(0 0.1 1K)
.DC Vin 0 1.8 0.1
.
.
Capacitance = dQ/ dv = (dQ/dt) . (dt/dv)= Ig / (dv/dt)
That means I need to plot (Ig / (dv/dt)) Vs Vin .
Can anyone please help how to make the derivative in plot.
We all know about the C-V characteristics of a MOS (MOSCAP Or MOSFET). It is the gate capacitance at different Vg.
I am trying to extract the C-V characteristics in spice. The process is like this
nmos1 0 gate 0 0 nmos L=0.180U W= 0.270U
Vin gate 0 DC 0 sin(0 0.1 1K)
.DC Vin 0 1.8 0.1
.
.
Capacitance = dQ/ dv = (dQ/dt) . (dt/dv)= Ig / (dv/dt)
That means I need to plot (Ig / (dv/dt)) Vs Vin .
Can anyone please help how to make the derivative in plot.