Version 4
SHEET 1 1580 680
WIRE -64 -368 -592 -368
WIRE -16 -368 -64 -368
WIRE -512 -336 -656 -336
WIRE -192 -336 -512 -336
WIRE -64 -336 -192 -336
WIRE -16 -336 -64 -336
WIRE -192 -320 -192 -336
WIRE -512 -256 -512 -336
WIRE -384 -240 -464 -240
WIRE -320 -240 -384 -240
WIRE -192 -240 -192 -256
WIRE -192 -240 -320 -240
WIRE -64 -240 -192 -240
WIRE -16 -240 -64 -240
WIRE -320 -224 -320 -240
WIRE -592 -208 -592 -368
WIRE -512 -208 -592 -208
WIRE -192 -208 -192 -240
WIRE -512 -144 -512 -160
WIRE -480 -144 -512 -144
WIRE -384 -144 -384 -240
WIRE -384 -144 -400 -144
WIRE -512 -128 -512 -144
WIRE -512 -112 -512 -128
WIRE -320 -96 -320 -144
WIRE -320 -96 -464 -96
WIRE -192 -96 -192 -144
WIRE -192 -96 -320 -96
WIRE -64 -96 -192 -96
WIRE -16 -96 -64 -96
WIRE -656 -64 -656 -336
WIRE -592 -64 -592 -208
WIRE -512 -64 -592 -64
WIRE -512 0 -512 -16
WIRE -320 0 -320 -96
WIRE -320 0 -512 0
WIRE -656 32 -656 16
WIRE -512 32 -656 32
WIRE -192 32 -512 32
WIRE -64 32 -192 32
WIRE -16 32 -64 32
WIRE -656 64 -656 32
WIRE -320 64 -320 0
WIRE -192 96 -192 32
WIRE -656 112 -736 112
WIRE -240 112 -320 112
WIRE -512 144 -512 32
WIRE -512 144 -608 144
WIRE -368 144 -512 144
WIRE -512 160 -512 144
WIRE -656 208 -656 160
WIRE -320 208 -320 160
WIRE -656 256 -656 208
WIRE -624 256 -656 256
WIRE -512 256 -512 240
WIRE -512 256 -544 256
WIRE -192 256 -192 160
WIRE -192 256 -512 256
WIRE -656 288 -656 256
WIRE -320 288 -320 208
WIRE -192 320 -192 256
WIRE -64 320 -192 320
WIRE -16 320 -64 320
WIRE -736 336 -736 112
WIRE -656 336 -736 336
WIRE -240 336 -240 112
WIRE -240 336 -320 336
WIRE -192 336 -192 320
WIRE -512 368 -512 256
WIRE -512 368 -608 368
WIRE -368 368 -512 368
WIRE -656 432 -656 384
WIRE -320 432 -320 384
WIRE -320 432 -656 432
WIRE -192 432 -192 400
WIRE -192 432 -320 432
WIRE -64 432 -192 432
WIRE -16 432 -64 432
WIRE -736 464 -736 336
WIRE -240 464 -240 336
WIRE -240 464 -736 464
WIRE -64 464 -240 464
WIRE -16 464 -64 464
FLAG -64 -240 VB4
FLAG -64 -96 VB3
FLAG -64 32 VB2
FLAG -64 320 VB1
FLAG -64 -368 NWELL
FLAG -64 -336 VD
FLAG -64 464 PSUB
FLAG -64 432 GND
IOPIN -64 432 BiDir
FLAG -656 208 VD1
FLAG -320 208 N1
FLAG -512 -128 VD4
SYMBOL nmos4 -368 288 R0
WINDOW 3 56 72 Invisible 0
SYMATTR Value CMOSN
SYMATTR InstName M1
SYMATTR Value2 l=0.9u w=1200u pd=2400u ps=2400u
SYMBOL nmos4 -608 288 M0
WINDOW 3 56 72 Invisible 0
SYMATTR Value CMOSN
SYMATTR InstName M5
SYMATTR Value2 l=0.9u w=1200u pd=2400u ps=2400u
SYMBOL nmos4 -368 64 R0
WINDOW 3 56 72 Invisible 0
SYMATTR Value CMOSN
SYMATTR InstName M2
SYMATTR Value2 l=1.2u w=120u pd=240u ps=240u
SYMBOL nmos4 -608 64 M0
WINDOW 3 56 72 Invisible 0
SYMATTR Value CMOSN
SYMATTR InstName M6
SYMATTR Value2 l=1.2u w=120u pd=240u ps=240u
SYMBOL pmos4 -464 -16 R180
WINDOW 3 56 72 Invisible 0
SYMATTR Value CMOSP
SYMATTR InstName M3
SYMATTR Value2 l=1.2u w=120u pd=240u ps=240u
SYMBOL pmos4 -464 -160 R180
WINDOW 3 56 72 Invisible 0
SYMATTR Value CMOSP
SYMATTR InstName M4
SYMATTR Value2 l=0.9u w=1200u pd=2400u ps=2400u
SYMBOL res -528 240 R90
WINDOW 0 4 56 VBottom 0
WINDOW 3 28 56 VTop 0
SYMATTR InstName R6
SYMATTR Value 8k
SYMBOL res -528 144 R0
SYMATTR InstName R7
SYMATTR Value 12k
SYMBOL res -672 -80 R0
SYMATTR InstName R4
SYMATTR Value 4k
SYMBOL res -304 -240 M0
SYMATTR InstName R5
SYMATTR Value 12k
SYMBOL res -384 -160 R90
WINDOW 0 4 56 VBottom 0
WINDOW 3 28 56 VTop 0
SYMATTR InstName R8
SYMATTR Value 8k
SYMBOL cap -208 -320 R0
SYMATTR InstName C2
SYMATTR Value 50pF
SYMBOL cap -208 -208 R0
SYMATTR InstName C3
SYMATTR Value 50pF
SYMBOL cap -208 96 R0
SYMATTR InstName C4
SYMATTR Value 50pF
SYMBOL cap -208 336 R0
SYMATTR InstName C5
SYMATTR Value 50pF