Version 4
SHEET 1 1100 756
WIRE -144 144 -208 144
WIRE 48 144 -64 144
WIRE 464 144 272 144
WIRE 464 160 464 144
WIRE -208 176 -208 144
WIRE 48 208 16 208
WIRE 464 256 464 240
WIRE 48 272 -80 272
WIRE 384 272 272 272
WIRE -208 288 -208 256
WIRE 384 288 384 272
WIRE -80 304 -80 272
WIRE 384 384 384 368
WIRE -80 416 -80 384
FLAG 16 208 0
FLAG -208 288 0
FLAG -80 416 0
FLAG 384 384 0
FLAG 464 256 0
SYMBOL LTC1728-2.5 160 240 R0
SYMATTR InstName U1
SYMBOL res -48 128 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 10K
SYMBOL voltage -208 160 R0
SYMATTR InstName V1
SYMATTR Value 5
SYMBOL voltage -80 288 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value PWL(0 1.05 7 1.05 8 0.95 9 1.05)
SYMBOL voltage 384 272 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V3
SYMATTR Value PWL(0 2.5 4 2.5 5 2.25 6 2.5)
SYMBOL voltage 464 144 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V4
SYMATTR Value PWL(0 3.3 1 3.3 2 3 3 3.3)
TEXT 504 464 Left 2 !.tran 10