* SPICE netlist
M1 Vbias N002 N006 0 CMOSN l=360n w=720n
M2 N002 N006 0 0 CMOSN l=360n w=1800n
M3 N006 N006 0 0 CMOSN l=360n w=1800n
M4 N003 N007 0 0 CMOSN l=360n w=1800n
M5 Vbias N006 0 0 CMOSN l=360n w=1800n
M6 N007 N007 N008 N008 CMOSN l=360n w=5400n
M7 Vbias2 Vbias2 0 0 CMOSN l=540n w=686n
M8 N005 Vbias2 N009 0 CMOSN l=360n w=1800n
M9 N009 N005 0 0 CMOSN l=360n w=1800n
M10 Vbias3 Vbias2 N010 0 CMOSN l=360n w=1800n
M11 N010 N005 0 0 CMOSN l=360n w=2600n
M12 Vbias4 Vbias2 N011 0 CMOSN l=360n w=1800n
M13 N011 N005 0 0 CMOSN l=360n w=1800n
M15 VDD N002 N002 VDD CMOSP l=3600n w=1800n
M16 VDD Vbias N006 VDD CMOSP l=360n w=4320n
M17 VDD N003 N003 VDD CMOSP l=360n w=4320n
M18 VDD N003 Vbias VDD CMOSP l=360n w=4320n
M19 VDD Vbias N007 VDD CMOSP l=360n w=4320n
M20 VDD Vbias VDD VDD CMOSP l=9000n w=9000n
M21 VDD Vbias Vbias2 VDD CMOSP l=360n w=7380n
M22 VDD Vbias N005 VDD CMOSP l=360n w=4320n
M23 VDD Vbias3 Vbias3 VDD CMOSP l=900n w=3600n
M24 N001 Vbias3 Vbias4 VDD CMOSP l=360n w=4320n
M25 VDD Vbias4 N001 VDD CMOSP l=360n w=6840n
V1 VDD 0 1.8
R1 N008 0 5.5K
V2 N013 0 SINE(0.57 1m 0.6Meg) AC 1
M14 N012 N013 0 0 CMOSN l=360n w=1400n
M26 Vout Vbias2 N012 0 CMOSN l=360n w=1300n
M28 VDD Vbias4 N004 VDD CMOSP l=360n w=3800n
M29 N004 Vbias3 Vout VDD CMOSP l=360n w=3700n
C1 Vout 0 1p
;tran 0.001
.ac lin 0.001 10K 2Meg

* LTspice schematic (.asc)
Version 4
SHEET 1 3280 1120
WIRE 1320 -448 1320 -560
WIRE 1432 -448 1320 -448
WIRE 824 -432 824 -528
WIRE 824 -432 760 -432
WIRE 1320 -432 1320 -448
WIRE 1416 -432 1320 -432
WIRE 824 -416 824 -432
WIRE 1320 -416 1320 -432
WIRE 760 -368 760 -432
WIRE 824 -368 760 -368
WIRE 1416 -368 1416 -432
WIRE 1416 -368 1320 -368
WIRE 904 -336 872 -336
WIRE 1208 -336 904 -336
WIRE 1272 -336 1208 -336
WIRE -1368 -288 -1368 -528
WIRE -1368 -288 -1432 -288
WIRE -1112 -288 -1112 -528
WIRE -1112 -288 -1176 -288
WIRE -904 -288 -904 -528
WIRE -904 -288 -968 -288
WIRE -696 -288 -696 -528
WIRE -632 -288 -696 -288
WIRE -504 -288 -504 -528
WIRE -440 -288 -504 -288
WIRE -328 -288 -328 -528
WIRE -328 -288 -392 -288
WIRE -264 -288 -328 -288
WIRE -1368 -272 -1368 -288
WIRE -1112 -272 -1112 -288
WIRE -904 -272 -904 -288
WIRE -696 -272 -696 -288
WIRE -504 -272 -504 -288
WIRE 104 -256 104 -528
WIRE 168 -256 104 -256
WIRE 360 -256 360 -528
WIRE 424 -256 360 -256
WIRE 616 -256 616 -528
WIRE 616 -256 552 -256
WIRE 104 -240 104 -256
WIRE 360 -240 360 -256
WIRE 616 -240 616 -256
WIRE 824 -240 824 -320
WIRE -1432 -224 -1432 -288
WIRE -1368 -224 -1432 -224
WIRE -1176 -224 -1176 -288
WIRE -1112 -224 -1176 -224
WIRE -968 -224 -968 -288
WIRE -904 -224 -968 -224
WIRE -632 -224 -632 -288
WIRE -632 -224 -696 -224
WIRE -440 -224 -440 -288
WIRE -440 -224 -504 -224
WIRE -1304 -192 -1320 -192
WIRE -1032 -192 -1064 -192
WIRE -840 -192 -856 -192
WIRE -744 -192 -840 -192
WIRE -552 -192 -584 -192
WIRE -392 -192 -392 -288
WIRE -376 -192 -392 -192
WIRE -328 -192 -328 -288
WIRE -264 -192 -264 -288
WIRE -264 -192 -280 -192
WIRE 168 -192 168 -256
WIRE 168 -192 104 -192
WIRE 424 -192 424 -256
WIRE 424 -192 360 -192
WIRE 552 -192 552 -256
WIRE 616 -192 552 -192
WIRE 728 -192 728 -528
WIRE 824 -192 728 -192
WIRE 1320 -176 1320 -320
WIRE -1368 -128 -1368 -176
WIRE -1304 -128 -1304 -192
WIRE -1304 -128 -1368 -128
WIRE -904 -128 -904 -176
WIRE -840 -128 -840 -192
WIRE -840 -128 -904 -128
WIRE 1432 -128 1432 -448
WIRE 1432 -128 1320 -128
WIRE -1032 -96 -1032 -192
WIRE -1032 -96 -1224 -96
WIRE -696 -96 -696 -176
WIRE -696 -96 -1032 -96
WIRE -584 -96 -584 -192
WIRE -584 -96 -696 -96
WIRE -296 -96 -296 -144
WIRE -296 -96 -584 -96
WIRE -200 -96 -296 -96
WIRE 56 -96 56 -160
WIRE 56 -96 -200 -96
WIRE 312 -96 312 -160
WIRE 312 -96 56 -96
WIRE 616 -96 616 -144
WIRE 664 -96 664 -160
WIRE 664 -96 616 -96
WIRE 872 -96 872 -160
WIRE 872 -96 664 -96
WIRE 1208 -96 872 -96
WIRE 1272 -96 1208 -96
WIRE -1144 -48 -1224 -48
WIRE 824 -48 824 -144
WIRE 904 -48 904 -336
WIRE 904 -48 824 -48
WIRE -1368 -16 -1368 -128
WIRE -1272 -16 -1368 -16
WIRE -1144 0 -1144 -48
WIRE 104 16 104 -144
WIRE 216 16 104 16
WIRE 360 16 360 -144
WIRE 456 16 360 16
WIRE 1320 16 1320 -80
WIRE 1528 16 1320 16
WIRE 1640 16 1528 16
WIRE -1368 48 -1368 -16
WIRE 104 48 104 16
WIRE 360 48 360 16
WIRE 616 48 616 -96
WIRE 824 48 824 -48
WIRE -1368 96 -1448 96
WIRE 104 96 24 96
WIRE 360 96 280 96
WIRE 696 96 616 96
WIRE 904 96 824 96
WIRE 1320 112 1320 16
WIRE 1528 112 1528 16
WIRE -1224 128 -1224 0
WIRE -1224 128 -1320 128
WIRE -1112 128 -1112 -176
WIRE -1112 128 -1224 128
WIRE -1032 128 -1112 128
WIRE -776 128 -1032 128
WIRE 280 144 280 96
WIRE 696 144 696 96
WIRE 904 144 904 96
WIRE -1448 160 -1448 96
WIRE -1368 160 -1368 144
WIRE -1368 160 -1448 160
WIRE -584 160 -824 160
WIRE -504 160 -504 -176
WIRE -504 160 -584 160
WIRE 24 160 24 96
WIRE 104 160 104 144
WIRE 104 160 24 160
WIRE 1432 160 1320 160
WIRE -1112 192 -1112 128
WIRE -904 192 -904 -128
WIRE -696 192 -696 -96
WIRE -504 192 -504 160
WIRE 152 192 152 128
WIRE 216 192 216 16
WIRE 216 192 152 192
WIRE 408 192 408 128
WIRE 408 192 216 192
WIRE 568 192 568 128
WIRE 568 192 408 192
WIRE 776 192 776 128
WIRE 776 192 568 192
WIRE 1208 192 776 192
WIRE 1272 192 1208 192
WIRE -1112 240 -1192 240
WIRE -904 240 -984 240
WIRE -616 240 -696 240
WIRE -424 240 -504 240
WIRE 1528 256 1528 176
WIRE -1032 272 -1032 128
WIRE -1032 272 -1064 272
WIRE -824 272 -824 160
WIRE -824 272 -856 272
WIRE -776 272 -776 128
WIRE -744 272 -776 272
WIRE -584 272 -584 160
WIRE -552 272 -584 272
WIRE 360 288 360 144
WIRE 616 288 616 144
WIRE 824 288 824 144
WIRE -1192 304 -1192 240
WIRE -1112 304 -1112 288
WIRE -1112 304 -1192 304
WIRE -984 304 -984 240
WIRE -904 304 -904 288
WIRE -904 304 -984 304
WIRE -696 304 -696 288
WIRE -616 304 -616 240
WIRE -616 304 -696 304
WIRE -504 304 -504 288
WIRE -424 304 -424 240
WIRE -424 304 -504 304
WIRE 360 304 360 288
WIRE 1320 320 1320 208
WIRE 360 336 280 336
WIRE 696 336 616 336
WIRE 904 336 824 336
WIRE 1416 368 1320 368
WIRE -504 384 -504 304
WIRE 280 400 280 336
WIRE 360 400 360 384
WIRE 360 400 280 400
WIRE 616 400 616 384
WIRE 696 400 696 336
WIRE 696 400 616 400
WIRE 824 400 824 384
WIRE 904 400 904 336
WIRE 904 400 824 400
WIRE 1272 400 1192 400
WIRE 408 416 408 368
WIRE 456 416 456 16
WIRE 456 416 408 416
WIRE 568 416 568 368
WIRE 568 416 456 416
WIRE 776 416 776 368
WIRE 776 416 568 416
WIRE 1320 432 1320 416
WIRE 1416 432 1416 368
WIRE 1416 432 1320 432
WIRE 1320 448 1320 432
WIRE 1432 448 1432 160
WIRE 1432 448 1320 448
WIRE -1368 480 -1368 160
WIRE -1112 480 -1112 304
WIRE -904 480 -904 304
WIRE -696 480 -696 304
WIRE -504 480 -504 464
WIRE 104 480 104 160
WIRE 360 480 360 400
WIRE 616 480 616 400
WIRE 824 480 824 400
WIRE 1192 480 1192 400
WIRE 1320 480 1320 448
FLAG -1640 48 0
FLAG -1640 -32 VDD
IOPIN -624 48 BiDir
FLAG -1368 -528 VDD
IOPIN -352 -448 BiDir
FLAG -1112 -528 VDD
IOPIN -96 -448 BiDir
FLAG -904 -528 VDD
IOPIN 112 -448 BiDir
FLAG -696 -528 VDD
IOPIN 320 -448 BiDir
FLAG -504 -528 VDD
IOPIN 512 -448 BiDir
FLAG -328 -528 VDD
IOPIN 688 -448 BiDir
FLAG 104 -528 VDD
IOPIN 1120 -448 BiDir
FLAG 360 -528 VDD
IOPIN 1376 -448 BiDir
FLAG 616 -528 VDD
IOPIN 1632 -448 BiDir
FLAG 824 -528 VDD
IOPIN 1840 -448 BiDir
FLAG -1368 480 0
FLAG -1112 480 0
FLAG -904 480 0
FLAG -696 480 0
FLAG -504 480 0
FLAG 104 480 0
FLAG 360 480 0
FLAG 616 480 0
FLAG 824 480 0
FLAG 904 144 0
FLAG 696 144 0
FLAG 280 144 0
FLAG -1144 0 0
FLAG 728 -528 VDD
IOPIN 1744 -448 BiDir
FLAG 1208 -336 Vbias4
FLAG 1208 -96 Vbias3
FLAG 1208 192 Vbias2
FLAG 1320 -560 VDD
IOPIN 2336 -480 BiDir
FLAG 1320 480 0
FLAG 1192 560 0
FLAG 1640 16 Vout
IOPIN 2656 96 BiDir
FLAG 1528 256 0
FLAG -200 -96 Vbias
DATAFLAG 2048 -256 ""
DATAFLAG 2048 -16 ""
DATAFLAG 2048 272 ""
DATAFLAG 944 -16 ""
DATAFLAG 2576 96 ""
DATAFLAG 2208 480 ""
SYMBOL nmos4 -1272 -96 R0
SYMATTR InstName M1
SYMATTR Value CMOSN
SYMATTR Value2 l=360n w=720n
SYMBOL nmos4 -1320 48 M0
SYMATTR InstName M2
SYMATTR Value CMOSN
SYMATTR Value2 l=360n w=1800n
SYMBOL nmos4 -1064 192 M0
SYMATTR InstName M3
SYMATTR Value CMOSN
SYMATTR Value2 l=360n w=1800n
SYMBOL nmos4 -856 192 M0
SYMATTR InstName M4
SYMATTR Value CMOSN
SYMATTR Value2 l=360n w=1800n
SYMBOL nmos4 -744 192 R0
SYMATTR InstName M5
SYMATTR Value CMOSN
SYMATTR Value2 l=360n w=1800n
SYMBOL nmos4 -552 192 R0
SYMATTR InstName M6
SYMATTR Value CMOSN
SYMATTR Value2 l=360n w=5400n
SYMBOL nmos4 152 48 M0
SYMATTR InstName M7
SYMATTR Value CMOSN
SYMATTR Value2 l=540n w=686n
SYMBOL nmos4 408 48 M0
SYMATTR InstName M8
SYMATTR Value CMOSN
SYMATTR Value2 l=360n w=1800n
SYMBOL nmos4 408 288 M0
SYMATTR InstName M9
SYMATTR Value CMOSN
SYMATTR Value2 l=360n w=1800n
SYMBOL nmos4 568 48 R0
SYMATTR InstName M10
SYMATTR Value CMOSN
SYMATTR Value2 l=360n w=1800n
SYMBOL nmos4 568 288 R0
SYMATTR InstName M11
SYMATTR Value CMOSN
SYMATTR Value2 l=360n w=2600n
SYMBOL nmos4 776 48 R0
SYMATTR InstName M12
SYMATTR Value CMOSN
SYMATTR Value2 l=360n w=1800n
SYMBOL nmos4 776 288 R0
SYMATTR InstName M13
SYMATTR Value CMOSN
SYMATTR Value2 l=360n w=1800n
SYMBOL pmos4 -1320 -272 M0
SYMATTR InstName M15
SYMATTR Value CMOSP
SYMATTR Value2 l=3600n w=1800n
SYMBOL pmos4 -1064 -272 M0
SYMATTR InstName M16
SYMATTR Value CMOSP
SYMATTR Value2 l=360n w=4320n
SYMBOL pmos4 -856 -272 M0
SYMATTR InstName M17
SYMATTR Value CMOSP
SYMATTR Value2 l=360n w=4320n
SYMBOL pmos4 -744 -272 R0
SYMATTR InstName M18
SYMATTR Value CMOSP
SYMATTR Value2 l=360n w=4320n
SYMBOL pmos4 -552 -272 R0
SYMATTR InstName M19
SYMATTR Value CMOSP
SYMATTR Value2 l=360n w=4320n
SYMBOL pmos4 -376 -144 R270
SYMATTR InstName M20
SYMATTR Value CMOSP
SYMATTR Value2 l=9000n w=9000n
SYMBOL pmos4 56 -240 R0
SYMATTR InstName M21
SYMATTR Value CMOSP
SYMATTR Value2 l=360n w=7380n
SYMBOL pmos4 312 -240 R0
SYMATTR InstName M22
SYMATTR Value CMOSP
SYMATTR Value2 l=360n w=4320n
SYMBOL pmos4 664 -240 M0
SYMATTR InstName M23
SYMATTR Value CMOSP
SYMATTR Value2 l=900n w=3600n
SYMBOL pmos4 872 -240 M0
SYMATTR InstName M24
SYMATTR Value CMOSP
SYMATTR Value2 l=360n w=4320n
SYMBOL pmos4 872 -416 M0
SYMATTR InstName M25
SYMATTR Value CMOSP
SYMATTR Value2 l=360n w=6840n
SYMBOL voltage -1640 -48 R0
SYMATTR InstName V1
SYMATTR Value 1.8
SYMBOL res -520 368 R0
SYMATTR InstName R1
SYMATTR Value 5.5K
SYMBOL voltage 1192 464 R0
SYMATTR Value2 AC 1
SYMATTR InstName V2
SYMATTR Value SINE(0.57 1m 0.6Meg)
SYMBOL nmos4 1272 320 R0
SYMATTR InstName M14
SYMATTR Value CMOSN
SYMATTR Value2 l=360n w=1400n
SYMBOL nmos4 1272 112 R0
SYMATTR InstName M26
SYMATTR Value CMOSN
SYMATTR Value2 l=360n w=1300n
SYMBOL pmos4 1272 -416 R0
SYMATTR InstName M28
SYMATTR Value CMOSP
SYMATTR Value2 l=360n w=3800n
SYMBOL pmos4 1272 -176 R0
SYMATTR InstName M29
SYMATTR Value CMOSP
SYMATTR Value2 l=360n w=3700n
SYMBOL cap 1512 112 R0
SYMATTR InstName C1
SYMATTR Value 1p