* SPICE netlist
V1 N005 0 1.8V
M1 N007 N007 N005 N005 CMOSP l=1800n w=900n
M2 0 N009 N007 0 CMOSN l=360n w=1800n
M3 Vbias N007 N009 0 CMOSN l=360n w=720n
M4 N009 Vbias N003 N003 CMOSP l=360n w=4320n
V2 N003 0 1.8V
M5 0 N009 N009 0 CMOSN l=360n w=1800n
M6 Vbias Vbias N004 N004 CMOSP l=360n w=4320n
M7 N002 Vbias N010 N002 CMOSP l=360n w=4320n
V3 N004 0 1.8V
M8 0 N008 Vbias 0 CMOSN l=360n w=1800n
M9 N010 N009 0 0 CMOSN l=360n w=1800n
M11 N008 N008 N011 0 CMOSN l=360n w=5400n
M12 N006 Vbias N008 N006 CMOSP l=360n w=4320n
M13 N001 Vbias N001 N001 CMOSP l=9000n w=9000n
V6 N001 0 1.8V
V7 N006 0 1.8V
R1 N011 0 5.5K
V4 N002 0 1..8V
.tran 10m
.inc TSMC180nm.txt
.op

* LTspice schematic (.asc)
Version 4
SHEET 1 1648 880
WIRE 808 -440 728 -440
WIRE 728 -392 728 -440
WIRE 808 -392 808 -440
WIRE 600 -296 536 -296
WIRE 232 -280 168 -280
WIRE -40 -264 -88 -264
WIRE 600 -264 600 -296
WIRE -264 -248 -360 -248
WIRE -40 -248 -40 -264
WIRE 728 -248 728 -312
WIRE 824 -248 728 -248
WIRE -664 -232 -712 -232
WIRE 232 -232 232 -280
WIRE 168 -216 168 -280
WIRE 728 -216 728 -248
WIRE 728 -216 680 -216
WIRE 776 -216 728 -216
WIRE -664 -200 -664 -232
WIRE -264 -200 -264 -248
WIRE -360 -184 -360 -248
WIRE -88 -184 -88 -264
WIRE 536 -168 536 -296
WIRE 824 -168 824 -248
WIRE 824 -168 728 -168
WIRE -712 -152 -712 -232
WIRE 680 -104 680 -216
WIRE 728 -104 728 -168
WIRE 776 -104 776 -216
WIRE 168 -88 168 -136
WIRE 264 -88 168 -88
WIRE -360 -72 -360 -104
WIRE -360 -72 -488 -72
WIRE -88 -72 -88 -104
WIRE -88 -72 -248 -72
WIRE -360 -56 -360 -72
WIRE -88 -56 -88 -72
WIRE 8 -56 -40 -56
WIRE 168 -56 168 -88
WIRE -712 -40 -712 -72
WIRE -712 -40 -824 -40
WIRE -40 -40 -40 -56
WIRE 760 -40 760 -56
WIRE 760 -40 440 -40
WIRE -712 -8 -712 -40
WIRE -488 -8 -488 -72
WIRE -360 -8 -488 -8
WIRE -248 -8 -248 -72
WIRE -88 -8 -248 -8
WIRE 264 -8 264 -88
WIRE 264 -8 168 -8
WIRE 536 -8 536 -88
WIRE 680 -8 536 -8
WIRE -600 8 -664 8
WIRE 536 8 536 -8
WIRE 8 24 8 -56
WIRE 88 24 8 24
WIRE 120 24 88 24
WIRE 760 24 760 -40
WIRE 776 24 760 24
WIRE -824 40 -824 -40
WIRE -712 40 -824 40
WIRE -312 56 -312 -40
WIRE -312 56 -520 56
WIRE -88 56 -88 40
WIRE 8 56 8 24
WIRE 8 56 -88 56
WIRE 680 56 680 -8
WIRE 680 56 536 56
WIRE -520 72 -520 56
WIRE -312 88 -312 56
WIRE 88 88 88 24
WIRE 88 88 -312 88
WIRE 440 88 440 -40
WIRE 440 88 88 88
WIRE 488 88 440 88
WIRE -712 104 -712 88
WIRE -600 104 -600 8
WIRE -600 104 -712 104
WIRE -424 120 -520 120
WIRE -424 136 -424 120
WIRE 424 136 -40 136
WIRE 536 136 536 104
WIRE 536 136 424 136
WIRE -712 152 -712 104
WIRE -568 152 -712 152
WIRE 536 152 536 136
WIRE 648 200 536 200
WIRE -712 232 -712 152
WIRE 424 232 424 136
WIRE 488 232 424 232
WIRE -520 248 -520 168
WIRE -520 248 -664 248
WIRE -360 248 -360 40
WIRE -360 248 -520 248
WIRE -312 248 -360 248
WIRE -312 264 -312 248
WIRE 120 264 -312 264
WIRE -712 280 -824 280
WIRE -360 280 -360 248
WIRE 648 280 648 200
WIRE -312 296 -312 264
WIRE -88 296 -88 56
WIRE 168 296 168 40
WIRE -40 312 -40 136
WIRE 536 312 536 248
WIRE -824 328 -824 280
WIRE -712 328 -824 328
WIRE -360 328 -440 328
WIRE -88 344 -216 344
WIRE 296 344 168 344
WIRE -712 360 -712 328
WIRE 120 376 120 264
WIRE -440 392 -440 328
WIRE -360 392 -360 376
WIRE -360 392 -440 392
WIRE -216 392 -216 344
WIRE -88 392 -216 392
WIRE -360 424 -360 392
WIRE -88 424 -88 392
WIRE 168 424 168 392
WIRE 296 424 296 344
WIRE 296 424 168 424
WIRE 536 424 536 392
WIRE 168 440 168 424
FLAG -664 -200 0
FLAG -712 360 0
FLAG -264 -200 0
FLAG -40 -248 0
FLAG -360 424 0
FLAG -88 424 0
FLAG 168 440 0
FLAG 600 -264 0
FLAG 808 -392 0
FLAG 536 424 0
FLAG 232 -232 0
FLAG 776 24 Vbias
IOPIN 1360 48 Out
FLAG -424 136 0
FLAG 648 280 0
SYMBOL voltage -712 -56 R180
SYMATTR InstName V1
SYMATTR Value 1.8V
SYMBOL pmos4 -664 88 R180
SYMATTR InstName M1
SYMATTR Value2 l=1800n w=900n
SYMATTR Value CMOSP
SYMBOL nmos4 -664 328 R180
SYMATTR InstName M2
SYMATTR Value2 l=360n w=1800n
SYMATTR Value CMOSN
SYMBOL nmos4 -568 72 R0
SYMATTR InstName M3
SYMATTR Value2 l=360n w=720n
SYMATTR Value CMOSN
SYMBOL pmos4 -312 40 R180
SYMATTR InstName M4
SYMATTR Value2 l=360n w=4320n
SYMATTR Value CMOSP
SYMBOL voltage -360 -88 R180
SYMATTR InstName V2
SYMATTR Value 1.8V
SYMBOL nmos4 -312 376 R180
SYMATTR InstName M5
SYMATTR Value2 l=360n w=1800n
SYMATTR Value CMOSN
SYMBOL pmos4 -40 40 R180
SYMATTR InstName M6
SYMATTR Value2 l=360n w=4320n
SYMATTR Value CMOSP
SYMBOL pmos4 120 -56 R0
SYMATTR InstName M7
SYMATTR Value2 l=360n w=4320n
SYMATTR Value CMOSP
SYMBOL voltage -88 -88 R180
SYMATTR InstName V3
SYMATTR Value 1.8V
SYMBOL nmos4 -40 392 R180
SYMATTR InstName M8
SYMATTR Value2 l=360n w=1800n
SYMATTR Value CMOSN
SYMBOL nmos4 120 296 R0
SYMATTR InstName M9
SYMATTR Value2 l=360n w=1800n
SYMATTR Value CMOSN
SYMBOL nmos4 488 152 R0
SYMATTR InstName M11
SYMATTR Value2 l=360n w=5400n
SYMATTR Value CMOSN
SYMBOL pmos4 488 8 R0
SYMATTR InstName M12
SYMATTR Value2 l=360n w=4320n
SYMATTR Value CMOSP
SYMBOL pmos4 680 -56 R270
SYMATTR InstName M13
SYMATTR Value2 l=9000n w=9000n
SYMATTR Value CMOSP
SYMBOL voltage 728 -296 R180
SYMATTR InstName V6
SYMATTR Value 1.8V
SYMBOL voltage 536 -72 R180
SYMATTR InstName V7
SYMATTR Value 1.8V
SYMBOL res 520 296 R0
SYMATTR InstName R1
SYMATTR Value 5.5K
SYMBOL voltage 168 -120 R180
SYMATTR InstName V4
SYMATTR Value 1..8V