Version 4
SHEET 1 880 680
WIRE 400 160 144 160
WIRE 448 160 400 160
WIRE 144 176 144 160
WIRE 480 192 320 192
WIRE 320 208 320 192
WIRE 64 224 -96 224
WIRE 288 224 224 224
WIRE 400 240 400 160
WIRE 400 240 352 240
WIRE 480 240 480 192
WIRE 288 256 256 256
WIRE 528 288 512 288
WIRE 144 304 144 272
WIRE 256 304 256 256
WIRE 256 304 144 304
WIRE -96 320 -96 304
WIRE 144 320 144 304
WIRE 320 352 320 272
WIRE 480 352 480 336
WIRE 480 352 320 352
WIRE 256 368 256 304
WIRE 528 368 528 288
WIRE 528 368 256 368
FLAG 144 320 0
FLAG -96 320 0
FLAG 448 160 OUT
IOPIN 448 160 Out
SYMBOL Dac8408 112 240 R0
WINDOW 0 -39 -44 Left 0
WINDOW 3 -85 62 Left 0
WINDOW 38 -81 -76 Left 0
SYMATTR InstName U1
SYMATTR Value DAC=255
SYMBOL Opamps\\LT1014 320 176 R0
WINDOW 0 -27 64 Left 0
WINDOW 3 -88 9 Left 0
SYMATTR InstName U2
SYMBOL bv -96 208 R0
WINDOW 0 -13 57 Left 0
WINDOW 3 -3 1 Left 0
SYMATTR InstName B1
SYMATTR Value V=5
SYMBOL Miscel\\v+&- 480 272 R0
SYMATTR InstName U3
SYMATTR Value VNP=5
TEXT -104 168 Left 0 !.tran 1
TEXT 304 384 Left 0 !.include DAC8408.cir
TEXT -128 352 Left 0 ;Enter a DAC byte as value\nDAC=nnn between 0 and 255 and run\nOutput of opamp depends on the value.