*Adder One Stage Cin = 1

* devices:
m0 4 bin0 vddp vddp p l=1.2u w=3.6u ad=15.54p as=15.54p pd=12.23u ps=12.23u
m1 vddp ain0 6 vddp p l=1.2u w=3.6u ad=15.54p as=15.54p pd=12.23u ps=12.23u
m2 22 ain0 vddp vddp p l=1.2u w=3.6u ad=3.662p as=15.54p pd=2.034u ps=12.23u
m3 23 6 vddp vddp p l=1.2u w=3.6u ad=3.662p as=15.54p pd=2.034u ps=12.23u
m4 7 4 22 vddp p l=1.2u w=3.6u ad=15.54p as=3.662p pd=12.23u ps=2.034u
m5 7 bin0 23 vddp p l=1.2u w=3.6u ad=15.54p as=3.662p pd=12.23u ps=2.034u
m6 8 ain0 vddp vddp p l=1.2u w=3.6u ad=9.062p as=15.54p pd=5.034u ps=12.23u
m7 vddp bin0 8 vddp p l=1.2u w=3.6u ad=15.54p as=9.062p pd=12.23u ps=5.034u
m8 10 cin0 vddp vddp p l=1.2u w=3.6u ad=15.54p as=15.54p pd=12.23u ps=12.23u
m9 vddp 7 11 vddp p l=1.2u w=3.6u ad=15.54p as=15.54p pd=12.23u ps=12.23u
m10 24 7 vddp vddp p l=1.2u w=3.6u ad=3.662p as=15.54p pd=2.034u ps=12.23u
m11 25 11 vddp vddp p l=1.2u w=3.6u ad=3.662p as=15.54p pd=2.034u ps=12.23u
m12 sum0 10 24 vddp p l=1.2u w=3.6u ad=15.54p as=3.662p pd=12.23u ps=2.034u
m13 sum0 cin0 25 vddp p l=1.2u w=3.6u ad=15.54p as=3.662p pd=12.23u ps=2.034u
m14 13 7 vddp vddp p l=1.2u w=3.6u ad=9.062p as=15.54p pd=5.034u ps=12.23u
m15 vddp cin0 13 vddp p l=1.2u w=3.6u ad=15.54p as=9.062p pd=12.23u ps=5.034u
m16 cout0 13 vddp vddp p l=1.2u w=3.6u ad=9.062p as=15.54p pd=5.034u ps=12.23u
m17 vddp 8 cout0 vddp p l=1.2u w=3.6u ad=15.54p as=9.062p pd=12.23u ps=5.034u
m18 gnd bin0 4 gnd n l=1.2u w=9.6u ad=27.03p as=41.41p pd=5.627u ps=18.23u
m19 6 ain0 gnd gnd n l=1.2u w=9.6u ad=41.41p as=27.01p pd=18.23u ps=5.627u
m20 15 4 gnd gnd n l=1.2u w=9.6u ad=9.747p as=41.41p pd=2.027u ps=18.23u
m21 7 6 15 gnd n l=1.2u w=9.6u ad=41.41p as=9.729p pd=18.23u ps=2.027u
m22 16 bin0 gnd gnd n l=1.2u w=9.6u ad=9.747p as=41.41p pd=2.027u ps=18.23u
m23 7 ain0 16 gnd n l=1.2u w=9.6u ad=41.41p as=9.729p pd=18.23u ps=2.027u
m24 17 bin0 gnd gnd n l=1.2u w=3.6u ad=3.655p as=10.13p pd=2.027u ps=5.627u
m25 8 ain0 17 gnd n l=1.2u w=3.6u ad=15.53p as=3.648p pd=12.23u ps=2.027u
m26 gnd cin0 10 gnd n l=1.2u w=9.6u ad=27.03p as=41.41p pd=5.627u ps=18.23u
m27 11 7 gnd gnd n l=1.2u w=9.6u ad=41.41p as=27.01p pd=18.23u ps=5.627u
m28 18 10 gnd gnd n l=1.2u w=9.6u ad=9.747p as=41.41p pd=2.027u ps=18.23u
m29 sum0 11 18 gnd n l=1.2u w=9.6u ad=41.41p as=9.729p pd=18.23u ps=2.027u
m30 19 cin0 gnd gnd n l=1.2u w=9.6u ad=9.747p as=41.41p pd=2.027u ps=18.23u
m31 sum0 7 19 gnd n l=1.2u w=9.6u ad=41.41p as=9.729p pd=18.23u ps=2.027u
m32 20 cin0 gnd gnd n l=1.2u w=3.6u ad=3.655p as=10.13p pd=2.027u ps=5.627u
m33 13 7 20 gnd n l=1.2u w=3.6u ad=15.53p as=3.648p pd=12.23u ps=2.027u
m34 21 8 gnd gnd n l=1.2u w=3.6u ad=3.655p as=10.13p pd=2.027u ps=5.627u
m35 cout0 13 21 gnd n l=1.2u w=3.6u ad=15.53p as=3.648p pd=12.23u ps=2.027u
* lumped capacitances:
cp1 bin0 0 44.83f
cp2 ain0 0 38.49f
cp3 vddp 0 142.9f
cp4 vddp bin0 3.614f
cp5 vddp ain0 9.857f
cp6 4 0 25.45f
cp7 4 bin0 7.817f
cp8 4 vddp 0.075f
cp9 gnd 0 126.4f
cp10 gnd bin0 6.14f
cp11 gnd vddp 24.55f
cp12 gnd 4 0.2f
cp13 6 0 23.81f
cp14 6 ain0 3.001f
cp15 6 vddp 2.112f
cp16 6 gnd 0.2f
cp17 7 0 61.95f
cp18 7 bin0 2.672f
cp19 7 ain0 1.516f
cp20 7 vddp 15.53f
cp21 7 4 1.32f
cp22 7 gnd 2.192f
cp23 8 0 22.42f
cp24 8 bin0 0.392f
cp25 8 vddp 2.817f
cp26 8 7 0.06f
cp27 cin0 0 44.83f
cp28 cin0 vddp 6.374f
cp29 cin0 gnd 6.14f
cp30 10 0 25.45f
cp31 10 vddp 0.075f
cp32 10 gnd 0.2f
cp33 10 cin0 7.817f
cp34 11 0 23.81f
cp35 11 vddp 2.112f
cp36 11 gnd 0.2f
cp37 11 7 3.001f
cp38 sum0 0 26.37f
cp39 sum0 vddp 0.4625f
cp40 sum0 gnd 2.65f
cp41 sum0 7 1.32f
cp42 sum0 cin0 1.32f
cp43 sum0 10 1.32f
cp44 13 0 17.61f
cp45 13 vddp 0.53f
cp46 13 gnd 2.335f
cp47 13 7 0.48f
cp48 13 cin0 0.392f
cp49 cout0 0 47.49f
cp50 cout0 vddp 2.45f
cp51 cout0 8 46.85f
vdd VDDP 0 5   
vgnd GND 0 0
vinA Ain0 0 dc pulse (0 5 0 0 0 10ns 20ns)
vinB Bin0 0 dc pulse (0 5 0 0 0 20ns 40ns)
vinC Cin0 0 5

.MODEL n NMOS
+ LEVEL=2 LD=0.1134U TOX=225.0E-10 XJ=0.2U
+ NSUB=1.968E+16 VTO=0.8186 KP=9.154E-05 GAMMA=0.5266
+ PHI=0.6 UO=596.5
+ DELTA=1.757 VMAX=1.942E+05
+ NFS=5.5E+12
+ RSH=116.5 TPG=1
+ CGDO=2.6106E-10 CGSO=2.6106E-10 CGBO=6.3402E-10 PB=0.8
+ CJ=3.1146E-04 MJ=.5 CJSW=4.3777E-10 MJSW=0.15423
.MODEL p PMOS
+ LEVEL=2 LD=0.1172U TOX=225.0E-10 XJ=0.2U
+ NSUB=1.514E+16 VTO=-0.9456 KP=3.1646E-05 GAMMA=0.4619
+ PHI=0.6 UO=206.2
+ DELTA=1.552 VMAX=4.441E+05
+ NFS=4.999E+12
+ RSH=129.5 TPG=-1
+ CGDO=2.6981E-10 CGSO=2.6981E-10 CGBO=8.6508E-10 PB=0.85
+ CJ=4.7864E-04 MJ=0.4973 CJSW=1.4771E-10 MJSW=0.190593

.tran .3n 50ns
.end