Version 4
SHEET 1 880 680
WIRE -144 -656 -368 -656
WIRE -144 -576 -144 -656
WIRE -144 -576 -208 -576
WIRE -32 -576 -64 -576
WIRE -320 -480 -528 -480
WIRE -208 -480 -208 -496
WIRE -208 -480 -240 -480
WIRE -208 -464 -208 -480
WIRE -400 -432 -432 -432
WIRE -288 -432 -320 -432
WIRE -1200 -416 -1232 -416
WIRE -1088 -416 -1120 -416
WIRE -1008 -416 -1088 -416
WIRE -896 -416 -928 -416
WIRE -96 -384 -208 -384
WIRE -32 -384 -32 -576
WIRE -32 -384 -96 -384
WIRE -368 -336 -368 -656
WIRE -96 -336 -96 -384
WIRE -432 -320 -432 -432
WIRE -432 -320 -464 -320
WIRE -400 -320 -432 -320
WIRE -288 -304 -288 -432
WIRE -288 -304 -336 -304
WIRE -1376 -288 -1472 -288
WIRE -1232 -288 -1232 -416
WIRE -1232 -288 -1312 -288
WIRE -1200 -288 -1232 -288
WIRE -1008 -288 -1136 -288
WIRE -896 -288 -896 -416
WIRE -896 -288 -944 -288
WIRE -864 -288 -896 -288
WIRE -528 -288 -528 -480
WIRE -528 -288 -784 -288
WIRE -400 -288 -528 -288
WIRE -432 -256 -432 -320
WIRE -288 -224 -288 -304
WIRE -160 -224 -208 -224
WIRE -1136 -208 -1136 -288
WIRE -1472 -192 -1472 -288
WIRE -528 -192 -528 -288
WIRE -432 -144 -432 -176
WIRE -1088 -128 -1088 -416
WIRE -1136 -48 -1136 -128
WIRE -1088 -48 -1088 -64
WIRE -1088 -48 -1136 -48
WIRE -1472 -32 -1472 -112
WIRE -528 -32 -528 -128
WIRE -528 -32 -1472 -32
WIRE -432 -32 -432 -80
WIRE -432 -32 -528 -32
WIRE -368 -32 -368 -272
WIRE -368 -32 -432 -32
WIRE -368 0 -368 -32
WIRE -1088 64 -1088 -48
WIRE -464 64 -464 -320
WIRE -464 64 -1088 64
FLAG -368 0 0
FLAG -96 -336 0
SYMBOL cap -1136 -304 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C2
SYMATTR Value 0.39µ
SYMBOL cap -944 -304 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C3
SYMATTR Value 0.39µ
SYMBOL cap -1072 -64 R180
WINDOW 0 24 56 Left 2
WINDOW 3 24 8 Left 2
SYMATTR InstName C4
SYMATTR Value 0.78µ
SYMBOL res -1104 -432 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 6.8k
SYMBOL res -912 -432 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 6.8k
SYMBOL Opamps\\UniversalOpamp2 -368 -304 R0
SYMATTR InstName U1
SYMBOL res -1152 -224 R0
SYMATTR InstName R4
SYMATTR Value 3.4k
SYMBOL res -448 -272 R0
SYMATTR InstName R5
SYMATTR Value 1K
SYMBOL cap -448 -144 R0
SYMATTR InstName C5
SYMATTR Value 0.47µ
SYMBOL res -192 -240 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R7
SYMATTR Value 220
SYMBOL cap -96 -240 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C6
SYMATTR Value 10µ
SYMBOL voltage -160 -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 V2
SYMATTR Value 12
SYMBOL res -224 -592 R0
SYMATTR InstName R8
SYMATTR Value 1e6
SYMBOL res -224 -480 R0
SYMATTR InstName R9
SYMATTR Value 1e6
SYMBOL res -224 -496 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R10
SYMATTR Value 1e6
SYMBOL res -304 -448 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R6
SYMATTR Value 10k
SYMBOL voltage -1472 -208 R0
WINDOW 123 24 44 Left 2
WINDOW 39 0 0 Left 2
SYMATTR Value2 AC 1
SYMATTR InstName V1
SYMATTR Value ""
SYMBOL cap -544 -192 R0
SYMATTR InstName C7
SYMATTR Value 200p
SYMBOL res -768 -304 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R11
SYMATTR Value 10k
SYMBOL cap -1312 -304 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C1
SYMATTR Value 1042p
TEXT -1464 64 Left 2 !.ac oct 2048 5 2e6