Version 4
SHEET 1 2740 840
WIRE 16 -336 -304 -336
WIRE 672 -336 16 -336
WIRE 864 -336 672 -336
WIRE 1184 -336 864 -336
WIRE 16 -256 16 -336
WIRE 1184 -176 1184 -336
WIRE 16 -112 16 -176
WIRE 320 -112 16 -112
WIRE 1088 -96 384 -96
WIRE 1136 -96 1088 -96
WIRE 128 -80 128 -176
WIRE 320 -80 128 -80
WIRE 864 -16 864 -336
WIRE 1184 -16 1184 -80
WIRE 1184 -16 1088 -16
WIRE 768 64 528 64
WIRE 816 64 768 64
WIRE 128 112 128 -80
WIRE 272 112 128 112
WIRE 16 144 16 -112
WIRE 128 144 128 112
WIRE 864 144 864 80
WIRE 864 144 768 144
WIRE 1184 144 1184 -16
WIRE 1184 144 1040 144
WIRE 1536 144 1184 144
WIRE 1728 144 1536 144
WIRE 1536 176 1536 144
WIRE -304 192 -304 -336
WIRE 864 224 864 144
WIRE 1184 224 864 224
WIRE 880 304 768 304
WIRE 1040 304 1040 144
WIRE 1040 304 880 304
WIRE 1184 304 1184 224
WIRE 1392 304 1392 256
WIRE 1392 304 1184 304
WIRE 1536 304 1536 256
WIRE 1536 304 1392 304
WIRE 1728 304 1536 304
WIRE 272 368 272 112
WIRE 320 368 272 368
WIRE 880 368 880 304
WIRE 768 384 384 384
WIRE 832 384 768 384
WIRE 16 400 16 224
WIRE 320 400 16 400
WIRE 1184 464 1184 304
WIRE 1184 464 1072 464
WIRE 1184 528 1184 464
WIRE 672 544 672 -336
WIRE 1072 544 672 544
WIRE 1136 544 1072 544
WIRE 16 592 16 400
WIRE 128 592 128 224
WIRE -304 768 -304 272
WIRE 16 768 16 672
WIRE 16 768 -304 768
WIRE 528 768 528 64
WIRE 528 768 16 768
WIRE 880 768 880 464
WIRE 880 768 528 768
WIRE 1184 768 1184 624
WIRE 1184 768 880 768
WIRE -304 800 -304 768
FLAG 352 -128 V2+
FLAG 352 416 V2+
FLAG 352 -64 V2-
FLAG 352 352 V2-
FLAG -304 800 0
FLAG 128 -256 V2+
FLAG 128 672 V2-
FLAG 1728 304 V2-
FLAG 1728 144 V2+
SYMBOL nmos 816 -16 R0
SYMATTR InstName M1
SYMATTR Value Si7218DN
SYMBOL nmos 1136 624 M180
SYMATTR InstName M3
SYMATTR Value Si7218DN
SYMBOL pmos 1136 -176 R0
SYMATTR InstName M2
SYMATTR Value Si9400DY
SYMBOL pmos 832 464 M180
SYMATTR InstName M4
SYMATTR Value Si9400DY
SYMBOL res 112 -272 R0
SYMATTR InstName R1
SYMATTR Value 10k
SYMBOL res 0 -272 R0
SYMATTR InstName R2
SYMATTR Value 10k
SYMATTR SpiceLine ""
SYMBOL res 112 128 R0
SYMATTR InstName R3
SYMATTR Value 16k
SYMATTR SpiceLine ""
SYMBOL res 0 128 R0
SYMATTR InstName R6
SYMATTR Value 16k
SYMATTR SpiceLine ""
SYMBOL res 112 576 R0
SYMATTR InstName R7
SYMATTR Value 10k
SYMATTR SpiceLine ""
SYMBOL res 0 576 R0
SYMATTR InstName R8
SYMATTR Value 10k
SYMATTR SpiceLine ""
SYMBOL voltage -304 176 R0
WINDOW 3 -199 109 Left 2
WINDOW 123 0 0 Left 2
WINDOW 39 22 91 Left 2
SYMATTR Value SINE(0 25 2k 0 0 0)
SYMATTR Value2 ""
SYMATTR SpiceLine Rser=0.2
SYMATTR InstName V1
SYMBOL res 752 48 R0
SYMATTR InstName R9
SYMATTR Value 68k
SYMBOL res 752 288 R0
SYMATTR InstName R10
SYMATTR Value 68k
SYMBOL res 1072 -112 R0
SYMATTR InstName R11
SYMATTR Value 10k
SYMATTR SpiceLine ""
SYMBOL res 1056 448 R0
SYMATTR InstName R12
SYMATTR Value 68k
SYMBOL res 1520 160 R0
SYMATTR InstName R13
SYMATTR Value 150
SYMBOL Opamps\\LT1001 352 -160 R0
SYMATTR InstName U4
SYMBOL Opamps\\LT1001 352 448 M180
SYMATTR InstName U6
SYMBOL cap 1376 192 R0
SYMATTR InstName C1
SYMATTR Value 100n
SYMATTR SpiceLine ""
TEXT -528 -264 Left 2 !.tran 0 2m 0 1u