HSPICE simulation PROBLEM

M1 2 12 1 1 NMOS w=70um l=1.2um
M2 3 11 1 1 NMOS w=70um l=1.2um
M3 2 2 0 0 NMOS w=39um l=2um
M4 3 2 0 0 NMOS w=39um l=2um
M5 1 6 14 14 PMOS w=22.3um l=1.2um
M6 5 3 0 0 NMOS w=174um l=1.2um
M7 5 6 14 14 PMOS w=83.7um l=1.2um
M8 6 6 14 14 PMOS w=5.58um l=1.2um
M9 7 6 14 14 PMOS w=5.58um l=1.2um
M10 6 7 8 8 NMOS w=11um l=1.2um
M11 7 7 9 9 NMOS w=11um l=1.2um
M12 8 9 10 10 NMOS w=11um l=1.2um
M13 9 9 0 0 NMOS w=11um l=1.2um
M14 4 7 3 3 NMOS w=5.58um l=1.2um



CL 5 0 3p
CC 4 5 1p

V1 14 0 5
vin+ 11 1 0 dc 0 ac 1
vin- 12 1 0 dc 0 ac



RB 10 0 2k

.option limpts=1000 dcon=1
.op
.tf v(5) vin+
.dc vin+ -0.5 0.5 10u
.ac dec 200 500k 1000g
.print ac av=par('v(5)/v(11)') vdb(5,11) vp(5,11)
.probe
.end
.op
.tf v(7) vin+
.dc vin+ -0.5 0.5 100u
.ac dec 20 1k 1g
.print ac av=par('v(7)/v(1)') vdb(7,1) vp(7,1)
.probe
.end

Click to expand...

.model NMOS NMOS
+Level = 1

+Lint = 4.e-08 Tox = 20.e-09
+Vth0 = 0.3999 Rdsw = 250

+lmin=.8e-7 lmax=.8e-7 wmin=1.8e-7 wmax=1.0e-4 Tref=27.0 version =3.1
+Xj= 6.0000000E-08 Nch= 5.9500000E+17
+lln= 1.0000000 lwn= 1.0000000 wln= 0.00
+wwn= 0.00 ll= 0.00
+lw= 0.00 lwl= 0.00 wint= 0.00
+wl= 0.00 ww= 0.00 wwl= 0.00
+Mobmod= 1 binunit= 2 xl= 0
+xw= 0 binflag= 0 LAMBDA=.03
+Dwg= 0.00 Dwb= 0.00

+K1= 0.5613000 K2= 1.0000000E-02
+K3= 0.00 Dvt0= 8.0000000 Dvt1= 0.7500000
+Dvt2= 8.0000000E-03 Dvt0w= 0.00 Dvt1w= 0.00
+Dvt2w= 0.00 Nlx= 1.6500000E-07 W0= 0.00
+K3b= 0.00 Ngate= 5.0000000E+20

+Vsat= 1.3800000E+05 Ua= -7.0000000E-10 Ub= 3.5000000E-18
+Uc= -5.2500000E-11 Prwb= 0.00
+Prwg= 0.00 Wr= 1.0000000 U0= 600
+A0= 1.1000000 Keta= 4.0000000E-02 A1= 0.00
+A2= 1.0000000 Ags= -1.0000000E-02 B0= 0.00
+B1= 0.00

+Voff= -0.12350000 NFactor= 0.9000000 Cit= 0.00
+Cdsc= 0.00 Cdscb= 0.00 Cdscd= 0.00
+Eta0= 0.2200000 Etab= 0.00 Dsub= 0.8000000

+Pclm= 5.0000000E-02 Pdiblc1= 1.2000000E-02 Pdiblc2= 7.5000000E-03
+Pdiblcb= -1.3500000E-02 Drout= 1.7999999E-02 Pscbe1= 8.6600000E+08
+Pscbe2= 1.0000000E-20 Pvag= -0.2800000 Delta= 1.0000000E-02
+Alpha0= 0.00 Beta0= 30.0000000

+kt1= -0.3700000 kt2= -4.0000000E-02 At= 5.5000000E+04
+Ute= -1.4800000 Ua1= 9.5829000E-10 Ub1= -3.3473000E-19
+Uc1= 0.00 Kt1l= 4.0000000E-09 Prt= 0.00

+Cj= 0.00365 Mj= 0.54 Pb= 0.982
+Cjsw= 7.9E-10 Mjsw= 0.31 Php= 0.841
+Cta= 0 Ctp= 0 Pta= 0
+Ptp= 0 JS=1.50E-08 JSW=2.50E-13
+N=1.0 Xti=3.0 Cgdo=2.786E-10
+Cgso=2.786E-10 Cgbo=0.0E+00 Capmod= 2
+NQSMOD= 0 Elm= 5 Xpart= 1
+Cgsl= 1.6E-10 Cgdl= 1.6E-10 Ckappa= 2.886
+Cf= 1.069e-10 Clc= 0.0000001 Cle= 0.6
+Dlc= 4E-08 Dwc= 0 Vfbcv= -1


*
* Predictive Technology Model Beta Version
* 0.18um PMOS SPICE Parametersv (normal one)
*

.model PMOS PMOS
+Level = 1

+Lint = 4.e-08 Tox = 20.e-09
+Vth0 = -0.42 Rdsw = 450

+lmin=.8e-7 lmax=.8e-7 wmin=.8e-7 wmax=1.0e-4 Tref=27.0 version =3.1
+Xj= 7.0000000E-08 Nch= 5.9200000E+17
+lln= 1.0000000 lwn= 1.0000000 wln= 0.00
+wwn= 0.00 ll= 0.00
+lw= 0.00 lwl= 0.00 wint= 0.00
+wl= 0.00 ww= 0.00 wwl= 0.00
+Mobmod= 1 binunit= 2 xl= 0.00
+xw= 0.00
+binflag= 0 Dwg= 0.00 Dwb= 0.00

+ACM= 0 ldif=0.00 hdif=0.00
+rsh= 0 rd= 0 rs= 0
+rsc= 0 rdc= 0 LAMBDA=.06

+K1= 0.5560000 K2= 0.00
+K3= 0.00 Dvt0= 11.2000000 Dvt1= 0.7200000
+Dvt2= -1.0000000E-02 Dvt0w= 0.00 Dvt1w= 0.00
+Dvt2w= 0.00 Nlx= 9.5000000E-08 W0= 0.00
+K3b= 0.00 Ngate= 5.0000000E+20

+Vsat= 1.0500000E+05 Ua= -1.2000000E-10 Ub= 1.0000000E-18
+Uc= -2.9999999E-11 Prwb= 0.00
+Prwg= 0.00 Wr= 1.0000000 U0= 200
+A0= 2.1199999 Keta= 2.9999999E-02 A1= 0.00
+A2= 0.4000000 Ags= -0.1000000 B0= 0.00
+B1= 0.00

+Voff= -6.40000000E-02 NFactor= 1.4000000 Cit= 0.00
+Cdsc= 0.00 Cdscb= 0.00 Cdscd= 0.00
+Eta0= 8.5000000 Etab= 0.00 Dsub= 2.8000000

+Pclm= 2.0000000 Pdiblc1= 0.1200000 Pdiblc2= 8.0000000E-05
+Pdiblcb= 0.1450000 Drout= 5.0000000E-02 Pscbe1= 1.0000000E-20
+Pscbe2= 1.0000000E-20 Pvag= -6.0000000E-02 Delta= 1.0000000E-02
+Alpha0= 0.00 Beta0= 30.0000000

+kt1= -0.3700000 kt2= -4.0000000E-02 At= 5.5000000E+04
+Ute= -1.4800000 Ua1= 9.5829000E-10 Ub1= -3.3473000E-19
+Uc1= 0.00 Kt1l= 4.0000000E-09 Prt= 0.00

+Cj= 0.00138 Mj= 1.05 Pb= 1.24
+Cjsw= 1.44E-09 Mjsw= 0.43 Php= 0.841
+Cta= 0.00093 Ctp= 0 Pta= 0.00153
+Ptp= 0 JS=1.50E-08 JSW=2.50E-13
+N=1.0 Xti=3.0 Cgdo=2.786E-10
+Cgso=2.786E-10 Cgbo=0.0E+00 Capmod= 2
+NQSMOD= 0 Elm= 5 Xpart= 1
+Cgsl= 1.6E-10 Cgdl= 1.6E-10 Ckappa= 2.886
+Cf= 1.058e-10 Clc= 0.0000001 Cle= 0.6
+Dlc= 3E-08 Dwc= 0 Vfbcv= -1

Click to expand...

HAIDE said:

I NEED TO find phasemargin of this circuit but it dont works as shown in picture
but as you see the the volts db isnt 0 even when i expand .ac 200 1k 100g! what is a problem?

Click to expand...