Version 4
SHEET 1 880 680
WIRE 64 -32 64 -48
WIRE 64 16 64 -32
WIRE 192 32 192 16
WIRE -592 64 -592 48
WIRE -480 64 -480 48
WIRE -352 64 -352 48
WIRE -592 96 -592 64
WIRE -480 96 -480 64
WIRE -352 96 -352 64
WIRE 192 96 192 32
WIRE 64 112 64 96
WIRE 112 112 64 112
WIRE 160 112 112 112
WIRE 304 128 224 128
WIRE 336 128 304 128
WIRE -32 144 -112 144
WIRE 160 144 -32 144
WIRE 64 160 64 112
WIRE -592 208 -592 176
WIRE -480 208 -480 176
WIRE -352 208 -352 176
WIRE 192 208 192 160
WIRE 192 240 192 208
WIRE 64 288 64 240
WIRE 64 304 64 288
FLAG 192 32 VCC
FLAG 192 208 VSS
FLAG 304 128 u_out
FLAG -32 144 u_in
FLAG 112 112 u_ref
FLAG 64 -32 VCC
FLAG 64 288 VSS
FLAG -592 208 0
FLAG -480 208 0
FLAG -592 64 VCC
FLAG -480 64 VSS
FLAG -352 208 0
FLAG -352 64 u_in
SYMBOL Comparators\\LT1018 192 128 R0
SYMATTR InstName U1
SYMBOL res 48 0 R0
WINDOW 0 -56 32 Left 2
WINDOW 3 -78 53 Left 2
SYMATTR InstName R1
SYMATTR Value 14.998
SYMBOL res 48 144 R0
WINDOW 0 -44 35 Left 2
WINDOW 3 -73 56 Left 2
SYMATTR InstName R2
SYMATTR Value 15.002
SYMBOL voltage -592 80 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 15
SYMBOL voltage -480 80 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value -15
SYMBOL voltage -352 80 R0
WINDOW 3 3 102 Left 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V3
SYMATTR Value SINE(0 15 1)
TEXT -516 284 Left 2 !.tran 1