Version 4
SHEET 1 1104 904
WIRE 208 32 -416 32
WIRE 640 32 208 32
WIRE -64 96 -128 96
WIRE 112 96 16 96
WIRE 880 96 112 96
WIRE 1008 96 880 96
WIRE -416 128 -416 32
WIRE 112 128 112 96
WIRE -128 144 -128 96
WIRE 1008 208 1008 96
WIRE -416 256 -416 208
WIRE -336 256 -416 256
WIRE 112 256 112 208
WIRE -336 272 -336 256
WIRE -128 272 -128 224
WIRE -416 320 -416 256
WIRE 1008 336 1008 288
WIRE 112 368 112 320
WIRE 416 368 112 368
WIRE 928 368 496 368
WIRE 640 416 640 32
WIRE 208 432 208 32
WIRE 608 432 576 432
WIRE 176 448 144 448
WIRE 928 448 928 368
WIRE 928 448 672 448
WIRE 320 464 240 464
WIRE 368 464 320 464
WIRE 480 464 448 464
WIRE 608 464 480 464
WIRE 112 480 112 368
WIRE 176 480 112 480
WIRE 320 480 320 464
WIRE 480 480 480 464
WIRE 800 496 752 496
WIRE 896 496 864 496
WIRE 144 576 144 448
WIRE 320 576 320 560
WIRE 320 576 144 576
WIRE 576 576 576 432
WIRE 576 576 320 576
WIRE 752 576 752 496
WIRE 752 576 576 576
WIRE 800 576 752 576
WIRE 896 576 896 496
WIRE 896 576 864 576
WIRE 928 576 928 448
WIRE 928 576 896 576
WIRE 480 608 480 560
WIRE -416 656 -416 400
WIRE 208 656 208 496
WIRE 208 656 -416 656
WIRE 640 656 640 480
WIRE 640 656 208 656
FLAG 480 608 0
FLAG -336 272 0
FLAG -128 272 0
FLAG 1008 336 0
FLAG 880 96 out
SYMBOL res 32 80 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 4k7
SYMBOL res 512 352 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 2k
SYMBOL res 352 480 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R3
SYMATTR Value 10k
SYMBOL cap 96 256 R0
SYMATTR InstName C1
SYMATTR Value {C1}
SYMBOL cap 864 480 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C2
SYMATTR Value 150n
SYMBOL cap 864 560 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C3
SYMATTR Value 150n
SYMBOL Opamps\\LT1001 208 400 R0
SYMATTR InstName U1
SYMBOL Opamps\\LT1001 640 384 R0
SYMATTR InstName U2
SYMBOL res 464 464 R0
SYMATTR InstName R7
SYMATTR Value 10k
SYMBOL voltage -416 112 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 12
SYMBOL voltage -416 304 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value 12
SYMBOL voltage -128 128 R0
WINDOW 123 24 124 Left 2
WINDOW 39 0 0 Left 2
SYMATTR Value2 AC 1
SYMATTR InstName V3
SYMATTR Value SINE(0 0.7 50)
SYMBOL res 992 192 R0
SYMATTR InstName R8
SYMATTR Value 600R
SYMBOL res 304 464 R0
SYMATTR InstName R4
SYMATTR Value 22k
SYMBOL res 96 112 R0
SYMATTR InstName R5
SYMATTR Value {RS}
TEXT -432 768 Left 2 ;.tran 0 2 1.5 20u
TEXT -432 808 Left 2 !.options plotwinsize=0
TEXT -432 848 Left 2 !.ac lin 2000 10 210
TEXT -440 888 Left 2 ;.step param C1 list 47n 100n 220n 470n 1u
TEXT -184 384 Left 2 !.param C1 190n
TEXT -432 704 Left 2 !.step param RS list 1 50 200
TEXT 248 168 Left 4 ;CD4052 200 Ohm