CMOS input referd noise hspice

[immajidjafari]

hello, everyone, I try to simulate input referred noise in the differential amplifier but there is some wrong in my code or maybe my netlist that makes noise=0, if it is possible to check it. Thanks a lot for your help!

******************************technology ******************
 .lib './TSMC_90nm.l' TT
 ******************************Components *****************
M1 5 Vin+ 3 3 pch w=4u l=0.1u M=10
M2 vout Vin- 3 3 pch w=4u l=0.1u M=10
M3 5 Vin+ 6 6 nch w=4u l=0.15u M=4
M4 vout Vin- 6 6 nch w=4u l=0.15u M=4
M5 5 5 ss ss nch w=4u l=0.15u M=4
M6 vout 5 ss ss nch w=4u l=0.15u M=4
M7 3 1dd dd pch w=6u l=0.15u M=20
M8 6 2 ss ss nch w=2.5u l=0.15u M=10
M9 2 2 ss ss nch w=2.5u l=0.15u M=1
M10 1 1 dd dd pch w=6u l=0.15u M=1
CL vout ss 2p
 ******************************supply ****************************
Ib 1 2 dc=0.05m
Vdd dd ss dc=1.4
Vss ss 0 dc=0
 ******************************AC Sources *****************
Vinac Vin+ im0 ac=1
Vindc1 im0 ss dc=0.7
Vindc2 Vin- ss dc=0.7
 ******************************analysis **************************
 .options list post
 .ac dec 10 10Meg 10G
 .NOISE V(OUT) VIN 10
.PRINT INOISE ONOISE
.OPTION POST
 .lin noisecalc=1
 .print ac v(out) onoise
 .end

 

[stenzer]

Hi,

I'm not really familiar wit HSpice, but here I'm missing the output net "out". There is only "Vout", and you are performing your analysis on net "out" by V(out).

BR

 

[FvM]

Also there's no voltage source VIN in your circuit. Write vinac instead.