april1975
Member level 2
Hello
I have written an sp file and tried to simulate it with Hspice. But it doesn't oscillate!
The code is:
I have used a 0.18u technology file for it and included it in the code.
What's the problem?
I have written an sp file and tried to simulate it with Hspice. But it doesn't oscillate!
The code is:
.option post=2
.tran 0.0001n 20u
.param lg=0.18u
*.ic v(x)=0
VDD vdd 0 DC 1.8
m1 x y 0 0 NMOS L='1*lg' W='10*lg'
m2 y x 0 0 NMOS L='1*lg' W='10*lg'
L1 vdd x 5n
C1 vdd x 5p
Rp1 vdd x 220
L2 vdd y 5n
C2 vdd y 5p
Rp2 vdd y 220
istart x y pulse (0 10nA 1ns 1ns 1ns 2ns 2s)
*.op
.end
I have used a 0.18u technology file for it and included it in the code.
What's the problem?