Version 4
SHEET 1 1224 1544
WIRE 144 416 32 416
WIRE 320 416 224 416
WIRE 32 512 32 496
WIRE 64 512 32 512
WIRE 208 512 128 512
WIRE 320 512 320 416
WIRE 320 512 288 512
WIRE 32 544 32 512
WIRE 688 544 32 544
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WIRE 208 608 32 608
WIRE 320 608 320 576
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WIRE 864 608 688 608
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WIRE 32 656 -48 656
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WIRE 320 656 272 656
WIRE 368 656 320 656
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WIRE 688 672 672 672
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WIRE 32 784 32 736
WIRE 160 784 160 736
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WIRE -224 896 -256 896
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WIRE 64 896 32 896
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WIRE 160 896 80 896
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WIRE -352 1040 -432 1040
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WIRE 48 1040 -48 1040
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WIRE 160 1040 80 1040
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WIRE 208 1040 160 1040
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WIRE 336 1040 272 1040
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WIRE 384 1040 336 1040
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WIRE 496 1040 496 1008
WIRE 496 1040 416 1040
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WIRE 688 1040 624 1040
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WIRE 208 1184 -176 1184
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WIRE 272 1184 208 1184
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WIRE 448 1248 0 1248
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WIRE 864 1248 800 1248
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WIRE 1072 1248 976 1248
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WIRE 128 1280 -112 1280
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WIRE 560 1280 336 1280
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WIRE -112 1360 -192 1360
WIRE 192 1360 -112 1360
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FLAG 496 1424 +OUT
FLAG -64 1408 -OUT
FLAG 864 1296 0
FLAG 1104 912 VCC
FLAG -320 880 Vg78
FLAG 80 880 Vg56
FLAG 368 880 Vg34
FLAG 736 880 Vg12
SYMBOL nmos 784 752 R180
WINDOW 3 -9 113 Left 0
WINDOW 0 56 80 Left 0
SYMATTR Value IRF1312S
SYMATTR InstName M1
SYMBOL nmos 672 752 R180
WINDOW 3 13 116 Left 0
WINDOW 0 59 85 Left 0
SYMATTR Value IRF1312S
SYMATTR InstName M2
SYMBOL nmos 416 752 R180
WINDOW 0 47 83 Left 0
WINDOW 3 -9 114 Left 0
SYMATTR InstName M3
SYMATTR Value IRF1312S
SYMBOL nmos 320 752 R180
WINDOW 0 59 86 Left 0
WINDOW 3 5 115 Left 0
SYMATTR InstName M4
SYMATTR Value IRF1312S
SYMBOL nmos 144 656 M0
WINDOW 0 56 13 Left 0
WINDOW 3 0 -18 Left 0
SYMATTR InstName M5
SYMATTR Value IRF1312S
SYMBOL nmos 0 656 M0
WINDOW 0 58 9 Left 0
WINDOW 3 2 -21 Left 0
SYMATTR InstName M6
SYMATTR Value IRF1312S
SYMBOL nmos -240 656 M0
WINDOW 0 56 21 Left 0
WINDOW 3 -5 -16 Left 0
SYMATTR InstName M7
SYMATTR Value IRF1312S
SYMBOL nmos -384 656 M0
WINDOW 0 53 7 Left 0
WINDOW 3 -3 -18 Left 0
SYMATTR InstName M8
SYMATTR Value IRF1312S
SYMBOL ind2 240 432 M270
WINDOW 0 32 56 VTop 0
WINDOW 3 28 -14 VTop 0
SYMATTR InstName L2
SYMATTR Value 4E-1
SYMATTR Type ind
SYMBOL res 352 880 R180
WINDOW 3 36 12 Left 0
SYMATTR Value 68
SYMATTR InstName Rg4
SYMBOL res 176 880 R180
WINDOW 3 36 12 Left 0
SYMATTR Value 68
SYMATTR InstName Rg5
SYMBOL res 48 880 R180
WINDOW 3 36 12 Left 0
SYMATTR Value 68
SYMATTR InstName Rg6
SYMBOL res -208 880 R180
WINDOW 3 36 12 Left 0
SYMATTR Value 68
SYMATTR InstName Rg7
SYMBOL res -336 880 R180
WINDOW 3 36 12 Left 0
SYMATTR Value 68
SYMATTR InstName Rg8
SYMBOL res 704 880 R180
WINDOW 3 36 12 Left 0
SYMATTR Value 68
SYMATTR InstName Rg2
SYMBOL res 832 880 R180
WINDOW 3 36 12 Left 0
SYMATTR Value 68
SYMATTR InstName Rg1
SYMBOL res 464 880 R180
WINDOW 3 36 12 Left 0
SYMATTR Value 68
SYMATTR InstName Rg3
SYMBOL res 880 1024 R180
WINDOW 0 30 93 Left 0
WINDOW 3 36 40 Left 0
SYMATTR InstName R9
SYMATTR Value 1K
SYMBOL res 640 1024 R180
WINDOW 0 16 83 Left 0
WINDOW 3 36 40 Left 0
SYMATTR InstName R10
SYMATTR Value 1K
SYMBOL res 880 1152 R180
WINDOW 0 36 76 Left 0
WINDOW 3 36 40 Left 0
SYMATTR InstName R11
SYMATTR Value 20K
SYMBOL res 640 1152 R180
WINDOW 0 23 80 Left 0
WINDOW 3 23 48 Left 0
SYMATTR InstName R12
SYMATTR Value 20K
SYMBOL res 512 1024 R180
WINDOW 0 22 96 Left 0
WINDOW 3 27 49 Left 0
SYMATTR InstName R13
SYMATTR Value 1K
SYMBOL res 512 1152 R180
WINDOW 0 -29 67 Left 0
WINDOW 3 -29 31 Left 0
SYMATTR InstName R14
SYMATTR Value 20K
SYMBOL res 288 1024 R180
WINDOW 0 19 82 Left 0
WINDOW 3 27 44 Left 0
SYMATTR InstName R15
SYMATTR Value 1K
SYMBOL res 288 1152 R180
WINDOW 0 -42 64 Left 0
WINDOW 3 -37 40 Left 0
SYMATTR InstName R16
SYMATTR Value 20K
SYMBOL res 224 1024 R180
WINDOW 0 20 83 Left 0
WINDOW 3 28 48 Left 0
SYMATTR InstName R17
SYMATTR Value 1K
SYMBOL res 224 1152 R180
WINDOW 0 36 76 Left 0
WINDOW 3 36 40 Left 0
SYMATTR InstName R18
SYMATTR Value 20K
SYMBOL res -32 1024 R180
WINDOW 0 27 85 Left 0
WINDOW 3 36 40 Left 0
SYMATTR InstName R19
SYMATTR Value 1K
SYMBOL res -416 1040 R180
WINDOW 0 36 76 Left 0
WINDOW 3 36 40 Left 0
SYMATTR InstName R21
SYMATTR Value 1K
SYMBOL res -160 1040 R180
WINDOW 0 -27 102 Left 0
WINDOW 3 -24 65 Left 0
SYMATTR InstName R22
SYMATTR Value 1K
SYMBOL res -160 1152 R180
WINDOW 0 36 76 Left 0
WINDOW 3 36 40 Left 0
SYMATTR InstName R23
SYMATTR Value 20K
SYMBOL res 992 1152 R180
WINDOW 0 36 76 Left 0
WINDOW 3 36 40 Left 0
SYMATTR InstName R24
SYMATTR Value 10K
SYMBOL cap -240 1008 R180
WINDOW 0 -24 51 Left 0
WINDOW 3 -32 12 Left 0
SYMATTR InstName C1
SYMATTR Value 47p
SYMBOL cap 176 992 R180
WINDOW 0 24 64 Left 0
WINDOW 3 20 8 Left 0
SYMATTR InstName C2
SYMATTR Value 47p
SYMBOL cap 352 992 R180
WINDOW 0 24 64 Left 0
WINDOW 3 24 8 Left 0
SYMATTR InstName C3
SYMATTR Value 47p
SYMBOL cap 704 992 R180
WINDOW 0 24 64 Left 0
WINDOW 3 24 8 Left 0
SYMATTR InstName C4
SYMATTR Value 47p
SYMBOL zener 992 1248 R180
WINDOW 0 50 46 Left 0
WINDOW 3 33 21 Left 0
SYMATTR InstName D1
SYMATTR Value 1N750
SYMBOL voltage 1072 1152 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value 20
SYMBOL ind2 -448 1104 R0
SYMATTR InstName L1
SYMATTR Value 5
SYMATTR Type ind
SYMBOL voltage -336 1104 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
WINDOW 3 -105 169 Left 0
SYMATTR InstName V2
SYMATTR Value SINE(0 120 60 0 0 0 20)
SYMBOL cap 192 1264 R90
WINDOW 0 48 62 VBottom 0
WINDOW 3 23 -2 VTop 0
SYMATTR InstName C5
SYMATTR Value .02
SYMBOL res 352 1264 R90
WINDOW 0 56 74 VBottom 0
WINDOW 3 28 14 VTop 0
SYMATTR InstName R1
SYMATTR Value 20m
SYMBOL Opamps\\LT1014 688 976 R270
WINDOW 0 33 49 Left 0
WINDOW 3 5 107 Left 0
SYMATTR InstName U5
SYMBOL Opamps\\LT1014 336 976 R270
WINDOW 0 25 48 Left 0
WINDOW 3 5 102 Left 0
SYMATTR InstName U6
SYMBOL Opamps\\LT1014 128 976 M270
WINDOW 0 21 80 Left 0
WINDOW 3 4 109 Left 0
SYMATTR InstName U7
SYMBOL Opamps\\LT1014 -272 976 M270
WINDOW 0 21 80 Left 0
WINDOW 3 5 112 Left 0
SYMATTR InstName U8
SYMBOL res -320 1072 R90
WINDOW 0 0 30 VBottom 0
WINDOW 3 24 47 VTop 0
SYMATTR InstName R2
SYMATTR Value .2
SYMBOL res 288 1344 R90
WINDOW 0 56 94 VBottom 0
WINDOW 3 32 35 VTop 0
SYMATTR InstName RL
SYMATTR Value .5
SYMBOL cap 128 496 R90
WINDOW 0 13 58 VBottom 0
WINDOW 3 -19 -2 VTop 0
SYMATTR InstName C6
SYMATTR Value 1E-7
SYMBOL res 304 496 R90
WINDOW 0 0 82 VBottom 0
WINDOW 3 -23 39 VTop 0
SYMATTR InstName R4
SYMATTR Value 47
SYMBOL ind 48 400 M0
SYMATTR InstName L3
SYMATTR Value 2E-3
SYMBOL res 544 848 R0
WINDOW 0 -20 18 Left 0
WINDOW 3 -24 64 Left 0
SYMATTR InstName RS
SYMATTR Value .01
TEXT -432 1304 Left 0 !K1 L1 L2 1
TEXT -440 1336 Left 0 !.tran 0 .066 .033