Version 4
SHEET 1 3476 836
WIRE 720 -272 544 -272
WIRE 960 -272 800 -272
WIRE 544 -240 544 -272
WIRE 960 -224 960 -272
WIRE 544 -128 544 -160
WIRE 960 -128 960 -160
FLAG 960 -128 0
FLAG 544 -128 0
SYMBOL voltage 544 -256 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value PULSE(0 5 1.5m 10n 10n 4m 2)
SYMBOL res 704 -256 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R1
SYMATTR Value 2.8Meg
SYMBOL LT1389-2.5 960 -192 R0
SYMATTR InstName U1
TEXT 1064 -88 Left 2 !.tran 10m