Version 4
SHEET 1 880 680
WIRE 368 144 368 160
WIRE 400 176 400 160
WIRE 400 160 368 160
WIRE 368 160 368 176
WIRE 368 64 -32 64
WIRE -32 64 -32 112
WIRE 368 256 -32 256
WIRE -32 256 -32 176
WIRE 0 160 32 160
WIRE 32 160 32 176
WIRE -416 240 -416 256
WIRE -400 144 -416 144
WIRE -416 144 -416 160
WIRE -320 144 -288 144
WIRE -224 144 -208 144
WIRE -208 144 -208 160
WIRE -208 224 -208 240
FLAG 400 176 0
FLAG 32 176 0
FLAG -416 256 0
FLAG -208 240 0
SYMBOL Opamps\\LT1807 -32 80 M0
SYMATTR InstName U1
SYMBOL voltage 368 48 R0
WINDOW 0 -16 57 Left 0
WINDOW 3 38 54 Left 0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value 5V
SYMBOL voltage 368 160 R0
WINDOW 0 -15 58 Left 0
WINDOW 3 40 52 Left 0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V2
SYMATTR Value 5V
SYMBOL voltage -416 144 R0
WINDOW 0 -13 54 Left 0
WINDOW 3 -120 285 Left 0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V3
SYMATTR Value PULSE(0 100mV 0nS 0.5nS 0.5nS 1nS 7.5nS 5)
SYMBOL res -416 160 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 0 56 VBottom 0
SYMATTR InstName R1
SYMATTR Value 50
SYMBOL cap -288 160 R270
WINDOW 0 32 32 VTop 0
WINDOW 3 0 32 VBottom 0
SYMATTR InstName C1
SYMATTR Value 1nF
SYMBOL cap -224 160 R0
SYMATTR InstName C2
SYMATTR Value 1nF
TEXT -538 506 Left 0 !.tran 0 150nS 0 startup uic