Version 4 SHEET 1 2168 1396 WIRE 176 832 128 832 WIRE 256 304 208 304 WIRE 368 304 336 304 WIRE 368 512 368 304 WIRE 368 832 256 832 WIRE 368 832 368 576 WIRE 384 -128 384 -160 WIRE 384 -16 384 -48 WIRE 512 -160 384 -160 WIRE 512 -160 512 -176 WIRE 512 -144 512 -160 WIRE 512 448 512 368 WIRE 512 608 512 512 WIRE 560 304 368 304 WIRE 560 368 512 368 WIRE 560 368 560 304 WIRE 560 608 512 608 WIRE 560 640 560 608 WIRE 560 720 560 704 WIRE 560 832 368 832 WIRE 560 832 560 800 WIRE 608 368 560 368 WIRE 608 384 608 368 WIRE 608 496 608 464 WIRE 608 608 560 608 WIRE 608 608 608 576 WIRE 640 -160 624 -160 WIRE 640 -160 640 -224 WIRE 720 -160 640 -160 WIRE 720 -160 720 -208 WIRE 720 -112 720 -160 WIRE 720 256 720 160 WIRE 720 304 560 304 WIRE 720 304 720 256 WIRE 720 352 720 304 WIRE 752 -112 720 -112 WIRE 752 352 720 352 WIRE 816 -208 720 -208 WIRE 816 160 720 160 WIRE 816 256 720 256 WIRE 864 -112 832 -112 WIRE 864 352 832 352 WIRE 960 -208 880 -208 WIRE 960 -160 960 -208 WIRE 960 -112 944 -112 WIRE 960 -112 960 -160 WIRE 960 160 880 160 WIRE 960 256 880 256 WIRE 960 256 960 160 WIRE 960 304 960 256 WIRE 960 352 944 352 WIRE 960 352 960 304 WIRE 976 496 976 416 WIRE 976 656 976 560 WIRE 1040 -160 960 -160 WIRE 1056 416 976 416 WIRE 1056 496 1056 416 WIRE 1056 656 976 656 WIRE 1056 656 1056 560 WIRE 1104 304 960 304 WIRE 1104 416 1056 416 WIRE 1104 416 1104 304 WIRE 1104 656 1056 656 WIRE 1104 832 560 832 WIRE 1104 832 1104 656 WIRE 1152 416 1104 416 WIRE 1152 432 1152 416 WIRE 1152 544 1152 512 WIRE 1152 656 1104 656 WIRE 1152 656 1152 624 WIRE 1168 -160 1120 -160 WIRE 1296 -160 1248 -160 WIRE 1296 -128 1296 -160 WIRE 1296 -16 1296 -64 WIRE 1424 -160 1296 -160 WIRE 1424 -160 1424 -224 WIRE 1456 368 1456 336 WIRE 1456 400 1456 368 WIRE 1456 832 1104 832 WIRE 1456 832 1456 480 WIRE 1488 304 1104 304 WIRE 1504 -160 1424 -160 WIRE 1504 -160 1504 -176 WIRE 1504 -144 1504 -160 WIRE 1568 304 1488 304 WIRE 1568 336 1456 336 WIRE 1600 288 1600 256 WIRE 1600 512 1600 352 WIRE 1600 832 1456 832 WIRE 1600 832 1600 592 WIRE 1664 -160 1616 -160 WIRE 1664 -160 1664 -224 WIRE 1680 256 1600 256 WIRE 1680 832 1600 832 WIRE 1680 832 1680 256 WIRE 1792 320 1632 320 WIRE 1792 512 1792 320 WIRE 1792 832 1680 832 WIRE 1792 832 1792 592 WIRE 1856 320 1792 320 FLAG 384 -16 0 FLAG 1296 -16 0 FLAG 640 -224 Prb1 IOPIN 640 -224 Out FLAG 1424 -224 Prb2 IOPIN 1424 -224 Out FLAG 208 304 Prb1 IOPIN 208 304 In FLAG 1488 304 CmpIn FLAG 1456 368 Vref FLAG 1664 -224 DUTout IOPIN 1664 -224 Out FLAG 384 -160 DUTin FLAG 128 832 0 FLAG 1856 320 LA IOPIN 1856 320 Out SYMBOL voltage 384 -144 R0 WINDOW 3 -206 182 Left 0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR Value PULSE(0 {Vcc} 5n 500p 500p 20n 40n 5) SYMATTR InstName V1 SYMBOL ind 1152 -144 R270 WINDOW 0 32 56 VTop 0 WINDOW 3 5 56 VBottom 0 SYMATTR InstName L1 SYMATTR Value 5n SYMBOL Misc\\EuropeanCap 1280 -128 R0 SYMATTR InstName C1 SYMATTR Value 3p SYMBOL ind 240 320 R270 WINDOW 0 32 56 VTop 0 WINDOW 3 5 56 VBottom 0 SYMATTR InstName L2 SYMATTR Value 5n SYMBOL Misc\\EuropeanCap 352 512 R0 SYMATTR InstName C2 SYMATTR Value 5p SYMBOL Misc\\EuropeanResistor 1136 416 R0 WINDOW 0 27 56 VTop 0 WINDOW 3 5 56 VBottom 0 SYMATTR InstName R3 SYMATTR Value 10k SYMBOL Comparators\\LT1720 1600 384 M180 SYMATTR InstName U1 SYMBOL voltage 1456 384 R0 WINDOW 3 -107 43 Left 0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR Value 250m SYMATTR InstName Vref SYMBOL voltage 1600 496 R0 WINDOW 3 -71 25 Left 0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR Value 3.3 SYMATTR InstName V4 SYMBOL ind 1168 640 R180 WINDOW 0 32 56 VTop 0 WINDOW 3 5 56 VBottom 0 SYMATTR InstName L4 SYMATTR Value 3n SYMBOL Misc\\EuropeanCap 1040 496 R0 SYMATTR InstName C8 SYMATTR Value 3p SYMBOL Misc\\EuropeanResistor 592 368 R0 WINDOW 0 27 56 VTop 0 WINDOW 3 5 56 VBottom 0 SYMATTR InstName R4 SYMATTR Value 50 SYMBOL ind 624 592 R180 WINDOW 0 32 56 VTop 0 WINDOW 3 5 56 VBottom 0 SYMATTR InstName L3 SYMATTR Value 3n SYMBOL Misc\\EuropeanCap 496 448 R0 SYMATTR InstName C3 SYMATTR Value 3p SYMBOL Misc\\EuropeanCap 544 640 R0 SYMATTR InstName C5 SYMATTR Value 3.3p SYMBOL ind 576 816 R180 WINDOW 0 32 56 VTop 0 WINDOW 3 5 56 VBottom 0 SYMATTR InstName L6 SYMATTR Value 3n SYMBOL Misc\\EuropeanResistor 960 -128 R90 WINDOW 0 5 56 VBottom 0 WINDOW 3 27 56 VTop 0 SYMATTR InstName R2 SYMATTR Value 50 SYMBOL ind 736 -96 R270 WINDOW 0 32 56 VTop 0 WINDOW 3 5 56 VBottom 0 SYMATTR InstName L5 SYMATTR Value 3n SYMBOL Misc\\EuropeanCap 880 -224 R90 WINDOW 0 0 32 VBottom 0 WINDOW 3 32 32 VTop 0 SYMATTR InstName C4 SYMATTR Value 3p SYMBOL Misc\\EuropeanResistor 1136 -176 R90 WINDOW 0 5 56 VBottom 0 WINDOW 3 27 56 VTop 0 SYMATTR InstName R1 SYMATTR Value 0.2 SYMBOL Digital\\74HC\\74hc00.i 1552 -224 R0 SYMATTR InstName U2 SYMATTR SpiceLine VCC={Vcc} SPEED=0.5 TRIPDT=1e-9 SYMBOL Digital\\74HC\\74hc00.i 560 -224 R0 SYMATTR InstName U3 SYMATTR SpiceLine VCC={Vcc} SPEED=0.5 TRIPDT=1e-9 SYMBOL ind 160 848 R270 WINDOW 0 32 56 VTop 0 WINDOW 3 5 56 VBottom 0 SYMATTR InstName L7 SYMATTR Value 100n SYMBOL Misc\\EuropeanResistor 960 336 R90 WINDOW 0 5 56 VBottom 0 WINDOW 3 27 56 VTop 0 SYMATTR InstName R5 SYMATTR Value 90k SYMBOL ind 736 368 R270 WINDOW 0 32 56 VTop 0 WINDOW 3 5 56 VBottom 0 SYMATTR InstName L8 SYMATTR Value 3n SYMBOL Misc\\EuropeanCap 880 240 R90 WINDOW 0 0 32 VBottom 0 WINDOW 3 32 32 VTop 0 SYMATTR InstName C6 SYMATTR Value 3p SYMBOL Misc\\EuropeanCap 960 496 R0 SYMATTR InstName C7 SYMATTR Value 33p SYMBOL Misc\\EuropeanCap 880 144 R90 WINDOW 0 0 32 VBottom 0 WINDOW 3 32 32 VTop 0 SYMATTR InstName C9 SYMATTR Value 1p SYMBOL Misc\\EuropeanResistor 1776 496 R0 WINDOW 0 27 56 VTop 0 WINDOW 3 5 56 VBottom 0 SYMATTR InstName Rla SYMATTR Value 10k TEXT 246 -462 Left 0 !.tran 150ns TEXT 1104 -296 Left 0 ;Ersatzschaltbild Leitung TEXT 288 232 Left 0 ;Tip TEXT 472 896 Left 0 ;AC Terminierung TEXT 616 672 Left 0 ;Rp >> 1 TEXT 744 -296 Left 0 ;Serienterminierung TEXT 248 -424 Left 0 !.include 74hc.lib TEXT 1096 232 Left 0 ;1:10 Spg.teiler TEXT 136 560 Left 0 ;<= DUT TEXT 424 -48 Left 0 ;25MHz TEXT 248 -384 Left 0 !.param Vcc=5 TEXT 152 896 Left 0 ;Ground Wire (10 - 100nH)