Version 4
SHEET 1 2452 680
WIRE 1488 -656 1488 -672
WIRE 1712 -528 1696 -528
WIRE 1488 -512 1488 -576
WIRE 1872 -512 1744 -512
WIRE 1744 -416 1744 -512
WIRE 1872 -416 1872 -432
WIRE 1968 -416 1872 -416
WIRE 1488 -400 1488 -432
WIRE 1584 -400 1488 -400
WIRE 1696 -400 1696 -528
WIRE 1696 -400 1664 -400
WIRE 1712 -400 1696 -400
WIRE 1792 -384 1792 -528
WIRE 1792 -384 1776 -384
WIRE 2032 -384 1792 -384
WIRE 1712 -368 1680 -368
WIRE 1872 -368 1872 -416
WIRE 1744 -288 1744 -352
WIRE 1872 -288 1744 -288
WIRE 560 -272 384 -272
WIRE 2032 -224 2032 -384
WIRE 2192 -224 2032 -224
WIRE 352 -208 320 -208
WIRE 480 -208 432 -208
WIRE 560 -208 560 -272
WIRE 2352 -208 2304 -208
WIRE 2224 -160 2224 -176
WIRE 2304 -160 2304 -208
WIRE 2304 -160 2224 -160
WIRE 832 -144 720 -144
WIRE 1952 -128 1664 -128
WIRE 560 -112 560 -128
WIRE 560 -112 512 -112
WIRE 2352 -112 2352 -128
WIRE 2432 -112 2352 -112
WIRE 384 -96 384 -272
WIRE 560 -96 560 -112
WIRE 832 -96 832 -144
WIRE 224 -80 144 -80
WIRE 320 -80 320 -208
WIRE 320 -80 304 -80
WIRE 352 -80 320 -80
WIRE 720 -80 720 -144
WIRE 1840 -80 1744 -80
WIRE 1952 -80 1952 -128
WIRE 2176 -80 2176 -176
WIRE 2176 -80 2112 -80
WIRE 2272 -80 2272 -176
WIRE 2320 -80 2272 -80
WIRE 480 -64 480 -208
WIRE 480 -64 416 -64
WIRE 688 -64 480 -64
WIRE -64 -48 -128 -48
WIRE 352 -48 320 -48
WIRE 1104 -48 752 -48
WIRE 688 -32 624 -32
WIRE 2352 -32 2224 -32
WIRE 384 -16 384 -32
WIRE 560 -16 384 -16
WIRE 2176 0 2176 -80
WIRE 2224 0 2224 -32
WIRE 2272 0 2272 -80
WIRE 1840 16 1840 0
WIRE 1904 16 1840 16
WIRE 720 32 720 -16
WIRE 736 32 720 32
WIRE 832 32 832 -16
WIRE 832 32 816 32
WIRE 1104 32 1104 -48
WIRE 1216 32 1104 32
WIRE 1744 32 1744 -80
WIRE 1840 32 1840 16
WIRE 16 48 16 -48
WIRE 16 48 -16 48
WIRE 1488 48 1488 -400
WIRE 1488 48 1280 48
WIRE 1664 48 1664 -128
WIRE 1712 48 1664 48
WIRE 832 64 832 32
WIRE 1952 64 1952 0
WIRE 1952 64 1776 64
WIRE 2256 64 2256 48
WIRE 2256 64 1952 64
WIRE 464 80 352 80
WIRE 1488 80 1488 48
WIRE 1712 80 1488 80
WIRE 1216 96 1104 96
WIRE 464 112 464 80
WIRE 1744 112 1744 96
WIRE 1840 112 1744 112
WIRE 352 128 352 80
WIRE -96 144 -96 48
WIRE -96 144 -192 144
WIRE 144 144 144 -80
WIRE 144 144 -96 144
WIRE 320 144 144 144
WIRE 2112 144 2112 -80
WIRE 2112 144 1248 144
WIRE 1104 160 1104 96
WIRE 1104 160 384 160
WIRE 320 176 272 176
WIRE 2320 176 2320 -80
WIRE 2320 176 1312 176
WIRE 368 192 352 192
WIRE 464 192 448 192
WIRE 464 208 464 192
WIRE 272 224 272 176
WIRE 624 224 624 -32
WIRE 624 224 272 224
WIRE 1104 288 1104 256
WIRE 1248 288 1248 144
WIRE 1248 288 1104 288
WIRE 1776 288 1728 288
WIRE 1920 288 1840 288
WIRE 1312 320 1312 176
WIRE 1312 320 1264 320
WIRE 624 352 624 304
WIRE 1888 384 1824 384
WIRE 144 400 144 144
WIRE 1104 400 1104 288
WIRE 1104 400 144 400
WIRE 1728 400 1728 288
WIRE 1728 400 1664 400
WIRE 1792 400 1728 400
WIRE 1920 416 1920 288
WIRE 1920 416 1856 416
WIRE 2080 416 1920 416
WIRE 1792 432 1728 432
WIRE 1264 464 1264 320
WIRE 1728 464 1728 432
WIRE 1888 480 1888 384
WIRE 1936 480 1888 480
WIRE 2032 480 2016 480
WIRE 2080 480 2032 480
WIRE 1264 576 1264 544
WIRE 1824 576 1824 448
WIRE 1888 576 1824 576
WIRE 2032 576 2032 480
WIRE 2032 576 1968 576
FLAG -272 144 0
FLAG 624 352 0
FLAG 464 208 0
FLAG 512 -112 0
FLAG 320 -48 0
FLAG 832 64 0
FLAG 1264 576 0
FLAG 1728 544 0
FLAG 2080 480 0
FLAG 2432 -112 0
FLAG 1904 16 0
FLAG 1952 -208 0
FLAG 1680 -368 0
FLAG 1968 -416 0
FLAG -128 -48 0
FLAG 1488 -672 0
SYMBOL voltage -176 144 R90
WINDOW 0 -32 56 VBottom 2
WINDOW 3 32 56 VTop 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value SINE(0 7 0.2)
SYMBOL Opamps\\LT1012 352 96 R0
WINDOW 3 -83 0 Left 2
SYMATTR InstName U2
SYMBOL voltage 464 96 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value 6
SYMBOL voltage 624 208 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V3
SYMATTR Value 5
SYMBOL voltage 464 192 R90
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V4
SYMATTR Value 1
SYMBOL Opamps\\LT1012 384 -128 R0
WINDOW 3 -83 0 Left 2
SYMATTR InstName U1
SYMBOL res 320 -96 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 1k
SYMBOL res 448 -224 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 1k
SYMBOL voltage 560 -224 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V5
SYMATTR Value 15
SYMBOL voltage 560 -112 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V6
SYMATTR Value 15
SYMBOL Opamps\\LT1012 720 -112 R0
WINDOW 3 -83 0 Left 2
SYMATTR InstName U3
SYMBOL voltage 832 -112 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V7
SYMATTR Value 6
SYMBOL voltage 832 32 R90
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V8
SYMATTR Value 1
SYMBOL Digital\\and 1248 0 R0
SYMATTR InstName A1
SYMBOL Opamps\\LT1012 1824 352 R0
WINDOW 3 -83 0 Left 2
SYMATTR InstName U4
SYMBOL cap 1840 272 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName 200µ
SYMATTR Value 200µ
SYMBOL res 1712 448 R0
SYMATTR InstName 10k
SYMATTR Value 10k
SYMBOL res 1248 448 R0
SYMATTR InstName R4
SYMATTR Value 1m
SYMBOL res 1680 384 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R5
SYMATTR Value 1meg
SYMBOL voltage 1920 480 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 -32 56 VBottom 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V10
SYMATTR Value 12
SYMBOL nmos4 2176 48 R270
SYMATTR InstName M3
SYMBOL pmos4 2272 -224 R90
SYMATTR InstName M4
SYMBOL voltage 2352 -224 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V11
SYMATTR Value 15
SYMBOL Opamps\\LT1012 1744 0 R0
WINDOW 3 -83 0 Left 2
SYMATTR InstName U5
SYMBOL voltage 1872 576 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 -32 56 VBottom 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V12
SYMATTR Value -12
SYMBOL voltage 2352 -128 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V13
SYMATTR Value 15
SYMBOL voltage 1840 -96 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V9
SYMATTR Value 12
SYMBOL res 1968 16 R180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R7
SYMATTR Value 4k
SYMBOL res 1968 -112 R180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R8
SYMATTR Value 1k
SYMBOL voltage 1840 16 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V14
SYMATTR Value 12
SYMBOL Opamps\\LT1012 1744 -448 R0
WINDOW 3 -83 0 Left 2
SYMATTR InstName U6
SYMBOL res 1680 -416 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 1k
SYMBOL res 1696 -512 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R9
SYMATTR Value 5k
SYMBOL voltage 1872 -528 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V15
SYMATTR Value 12
SYMBOL voltage 1872 -384 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V16
SYMATTR Value 12
SYMBOL res 32 -64 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R10
SYMATTR Value 0.25k
SYMBOL res 1472 -672 R0
SYMATTR InstName R11
SYMATTR Value 0.5k
SYMBOL res 1472 -528 R0
SYMATTR InstName R12
SYMATTR Value 0.5k
SYMBOL res 0 32 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R6
SYMATTR Value 1k
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