* SPICE netlist
M1 N002 Vin1` N001 N001 PMOS
M2 N001 Vin1 Vpos Vpos PMOS
M3 N002 Vin1 N003 N003 NMOS
M4 N003 Vin2` Vneg Vneg NMOS
M5 Vout N002 Vneg Vneg NMOS
M6 Vout N002 Vpos Vpos PMOS
M7 N002 Vin2 N001 N001 PMOS
M8 N001 Vin2` Vpos Vpos PMOS
M9 N002 Vin1` N004 N004 NMOS
M10 N004 Vin2 Vneg Vneg NMOS
M11 Vin1` Vin1 Vneg Vneg NMOS
M12 Vin1` Vin1 Vpos Vpos PMOS
M13 Vin2` Vin2 Vneg Vneg NMOS
M14 Vin2` Vin2 Vpos Vpos PMOS

* LTspice schematic (.asc)
Version 4
SHEET 1 976 800
WIRE 72 -368 72 -400
WIRE 72 -368 -40 -368
WIRE 184 -368 72 -368
WIRE -328 -352 -328 -384
WIRE -248 -352 -328 -352
WIRE -376 -336 -440 -336
WIRE -40 -320 -40 -368
WIRE 40 -320 -40 -320
WIRE 184 -320 184 -368
WIRE 264 -320 184 -320
WIRE -248 -304 -248 -352
WIRE -248 -304 -328 -304
WIRE 40 -272 40 -320
WIRE 40 -272 -40 -272
WIRE 264 -272 264 -320
WIRE 264 -272 184 -272
WIRE -440 -240 -440 -336
WIRE -440 -240 -488 -240
WIRE -328 -240 -328 -256
WIRE -312 -240 -328 -240
WIRE -328 -208 -328 -240
WIRE -40 -208 -40 -224
WIRE 56 -208 -40 -208
WIRE 184 -208 184 -224
WIRE 184 -208 56 -208
WIRE -248 -160 -328 -160
WIRE 56 -160 56 -208
WIRE 56 -160 -40 -160
WIRE 184 -160 56 -160
WIRE -440 -128 -440 -240
WIRE -376 -128 -440 -128
WIRE -40 -128 -40 -160
WIRE 40 -128 -40 -128
WIRE 184 -128 184 -160
WIRE 264 -128 184 -128
WIRE -248 -112 -248 -160
WIRE -248 -112 -328 -112
WIRE -328 -96 -328 -112
WIRE 408 -96 408 -128
WIRE 488 -96 408 -96
WIRE 40 -80 40 -128
WIRE 40 -80 -40 -80
WIRE 264 -80 264 -128
WIRE 264 -80 184 -80
WIRE 360 -80 296 -80
WIRE 488 -48 488 -96
WIRE 488 -48 408 -48
WIRE -40 -16 -40 -32
WIRE 56 -16 -40 -16
WIRE 184 -16 184 -32
WIRE 184 -16 56 -16
WIRE 408 16 408 0
WIRE 424 16 408 16
WIRE 56 32 56 -16
WIRE 296 32 296 -80
WIRE 296 32 56 32
WIRE 408 48 408 16
WIRE 56 64 56 32
WIRE 56 64 -40 64
WIRE 184 64 56 64
WIRE -40 96 -40 64
WIRE 184 96 184 64
WIRE 488 96 408 96
WIRE -328 112 -328 80
WIRE -248 112 -328 112
WIRE -376 128 -440 128
WIRE 296 128 296 32
WIRE 360 128 296 128
WIRE 40 144 -40 144
WIRE 264 144 184 144
WIRE 488 144 488 96
WIRE 488 144 408 144
WIRE -248 160 -248 112
WIRE -248 160 -328 160
WIRE 408 160 408 144
WIRE 40 192 40 144
WIRE 40 192 -40 192
WIRE 264 192 264 144
WIRE 264 192 184 192
WIRE -440 224 -440 128
WIRE -440 224 -488 224
WIRE -328 224 -328 208
WIRE -312 224 -328 224
WIRE -40 224 -40 192
WIRE 184 224 184 192
WIRE -328 256 -328 224
WIRE 40 272 -40 272
WIRE 264 272 184 272
WIRE -248 304 -328 304
WIRE 40 320 40 272
WIRE 40 320 -40 320
WIRE 264 320 264 272
WIRE 264 320 184 320
WIRE -440 336 -440 224
WIRE -376 336 -440 336
WIRE -248 352 -248 304
WIRE -248 352 -328 352
WIRE -328 368 -328 352
WIRE -40 368 -40 320
WIRE 72 368 -40 368
WIRE 184 368 184 320
WIRE 184 368 72 368
WIRE 72 400 72 368
FLAG 72 -400 Vpos
IOPIN 144 -176 In
FLAG -488 -240 Vin1
IOPIN -416 -16 In
FLAG -88 176 Vin1
IOPIN -16 400 In
FLAG -488 224 Vin2
IOPIN -416 448 In
FLAG 72 400 Vneg
IOPIN 144 624 In
FLAG 408 -128 Vpos
IOPIN 480 96 In
FLAG 408 160 Vneg
IOPIN 480 384 In
FLAG 424 16 Vout
IOPIN 496 240 Out
FLAG -88 -304 Vin1
IOPIN -16 -80 In
FLAG -328 -384 Vpos
IOPIN -256 -160 In
FLAG -328 -96 Vneg
IOPIN -256 128 In
FLAG -312 -240 Vin1`
IOPIN -240 -16 Out
FLAG -328 80 Vpos
IOPIN -256 304 In
FLAG -328 368 Vneg
IOPIN -256 592 In
FLAG -312 224 Vin2`
IOPIN -240 448 Out
FLAG 136 -112 Vin2
IOPIN 208 112 In
FLAG 136 -304 Vin2`
IOPIN 208 -80 In
FLAG -88 -112 Vin1`
IOPIN -16 112 In
FLAG 136 176 Vin1`
IOPIN 208 400 In
FLAG -88 304 Vin2`
IOPIN -16 528 In
FLAG 136 304 Vin2
IOPIN 208 528 In
SYMBOL pmos4 -88 -32 M180
SYMATTR InstName M1
SYMBOL pmos4 -88 -224 M180
SYMATTR InstName M2
SYMBOL nmos4 -88 96 R0
SYMATTR InstName M3
SYMBOL nmos4 -88 224 R0
SYMATTR InstName M4
SYMBOL nmos4 360 48 R0
SYMATTR InstName M5
SYMBOL pmos4 360 0 M180
SYMATTR InstName M6
SYMBOL pmos4 136 -32 M180
SYMATTR InstName M7
SYMBOL pmos4 136 -224 M180
SYMATTR InstName M8
SYMBOL nmos4 136 96 R0
SYMATTR InstName M9
SYMBOL nmos4 136 224 R0
SYMATTR InstName M10
SYMBOL nmos4 -376 -208 R0
SYMATTR InstName M11
SYMBOL pmos4 -376 -256 M180
SYMATTR InstName M12
SYMBOL nmos4 -376 256 R0
SYMATTR InstName M13
SYMBOL pmos4 -376 208 M180
SYMATTR InstName M14