Version 4
SHEET 1 880 764
WIRE 112 16 96 16
WIRE 240 16 224 16
WIRE 400 16 384 16
WIRE 96 32 96 16
WIRE 224 32 224 16
WIRE 384 32 384 16
WIRE 64 192 32 192
WIRE 160 192 144 192
WIRE 272 192 256 192
WIRE 224 240 208 240
WIRE 208 256 208 240
WIRE 160 288 160 192
WIRE 160 288 144 288
WIRE 176 288 160 288
WIRE 288 288 256 288
WIRE 320 288 288 288
WIRE 432 288 400 288
WIRE 464 288 432 288
WIRE 160 320 144 320
WIRE 176 320 160 320
WIRE 272 320 272 192
WIRE 272 320 256 320
WIRE 432 320 432 288
WIRE 192 384 192 352
WIRE 208 384 192 384
WIRE 432 416 432 384
WIRE 64 432 32 432
WIRE 160 432 160 320
WIRE 160 432 144 432
WIRE 176 432 160 432
WIRE 288 432 288 288
WIRE 288 432 256 432
WIRE 320 496 192 496
WIRE 272 512 256 512
WIRE 256 544 256 512
WIRE 192 560 192 496
WIRE 224 560 192 560
WIRE 320 576 320 496
WIRE 320 576 288 576
WIRE 352 576 320 576
WIRE 64 592 32 592
WIRE 176 592 144 592
WIRE 224 592 176 592
WIRE 176 624 176 592
WIRE 256 640 256 608
WIRE 272 640 256 640
WIRE 176 704 176 688
FLAG 96 112 0
FLAG 224 112 0
FLAG 112 16 +5
FLAG 240 16 -5
FLAG 224 240 +5
FLAG 208 384 -5
FLAG 224 352 0
FLAG 208 352 0
FLAG 384 112 0
FLAG 400 16 SIG
IOPIN 400 16 Out
FLAG 32 592 SIG
IOPIN 32 592 In
FLAG 432 416 0
FLAG 464 288 CLK
IOPIN 464 288 Out
FLAG 32 192 0
FLAG 144 320 P
FLAG 144 288 N
FLAG 272 512 +5
FLAG 272 640 -5
FLAG 176 704 0
FLAG 352 576 cp
FLAG 32 432 cp
SYMBOL voltage 96 16 R0
WINDOW 123 0 0 Left 2
WINDOW 39 24 112 Left 2
SYMATTR InstName V1
SYMATTR Value 5
SYMATTR SpiceLine Rser=100m
SYMBOL voltage 224 16 R0
WINDOW 123 0 0 Left 2
WINDOW 39 24 112 Left 2
SYMATTR InstName V2
SYMATTR Value -5
SYMATTR SpiceLine Rser=100m
SYMBOL Comparators\\LT1712 208 304 R0
SYMATTR InstName U1
SYMBOL voltage 384 16 R0
WINDOW 123 0 0 Left 2
WINDOW 39 24 112 Left 2
SYMATTR InstName V3
SYMATTR Value SINE(0 25m 200k)
SYMATTR SpiceLine Rser=1
SYMBOL res 48 448 R270
WINDOW 0 27 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName R1
SYMATTR Value 50
SYMBOL res 160 448 R270
WINDOW 0 27 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName R2
SYMATTR Value 50k
SYMBOL res 48 208 R270
WINDOW 0 27 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName R5
SYMATTR Value 50
SYMBOL res 160 208 R270
WINDOW 0 27 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName R6
SYMATTR Value 50k
SYMBOL cap 416 320 R0
WINDOW 39 24 72 Left 2
SYMATTR InstName C1
SYMATTR Value 5p
SYMATTR SpiceLine Rpar=1Meg
SYMBOL ind 304 304 R270
WINDOW 0 26 56 VTop 2
WINDOW 3 16 56 VBottom 2
WINDOW 39 0 56 VBottom 2
SYMATTR InstName L1
SYMATTR Value 10n
SYMATTR SpiceLine Rser=1m
SYMBOL Opamps\\opamp2 256 512 R0
SYMATTR InstName U2
SYMATTR Value TL072
SYMBOL res 48 608 R270
WINDOW 0 27 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName R3
SYMATTR Value 1.6k
SYMBOL cap 160 624 R0
SYMATTR InstName C2
SYMATTR Value 100p
TEXT 32 -32 Left 2 !.tran 0 25u 0 10n
TEXT 32 -16 Left 2 !.opt plotwinsize=0
TEXT 32 -72 Left 2 ;http://www.mikrocontroller.net/topic/363213#4079896
TEXT 32 -56 Left 2 !.lib TL072.301
TEXT 120 -56 Left 2 ;http://www.ti.com/lit/mo/sloj067/sloj067.zip
TEXT 88 640 Left 2 ;1 MHz
TEXT 344 544 Left 2 ;Ro=128+64 Ohm