Version 4
SHEET 1 2380 1240
WIRE -464 -400 -496 -400
WIRE 48 -400 -464 -400
WIRE 464 -368 416 -368
WIRE 576 -368 528 -368
WIRE 192 -320 192 -336
WIRE 464 -320 448 -320
WIRE -224 -304 -336 -304
WIRE -96 -304 -144 -304
WIRE -32 -304 -96 -304
WIRE 160 -304 -32 -304
WIRE 272 -288 224 -288
WIRE 416 -288 416 -368
WIRE 416 -288 272 -288
WIRE 448 -288 448 -320
WIRE -496 -272 -496 -400
WIRE -336 -272 -336 -304
WIRE 48 -272 48 -400
WIRE 160 -272 48 -272
WIRE -96 -256 -96 -304
WIRE 192 -240 192 -256
WIRE 416 -208 416 -288
WIRE 464 -208 416 -208
WIRE 464 -192 416 -192
WIRE 576 -192 528 -192
WIRE -496 -160 -496 -192
WIRE -336 -160 -336 -192
WIRE 192 -144 192 -160
WIRE -96 -128 -96 -176
WIRE -32 -128 -96 -128
WIRE 160 -128 -32 -128
WIRE -96 -112 -96 -128
WIRE 272 -112 224 -112
WIRE 416 -112 416 -192
WIRE 416 -112 272 -112
WIRE 48 -96 48 -272
WIRE 160 -96 48 -96
WIRE 192 -64 192 -80
WIRE 416 -32 416 -112
WIRE 464 -32 416 -32
WIRE 464 -16 416 -16
WIRE 576 -16 528 -16
WIRE 192 32 192 16
WIRE 688 32 640 32
WIRE 800 32 752 32
WIRE -96 48 -96 -32
WIRE -32 48 -96 48
WIRE 160 48 -32 48
WIRE 688 48 656 48
WIRE -304 64 -304 32
WIRE 272 64 224 64
WIRE 416 64 416 -16
WIRE 416 64 272 64
WIRE 688 64 640 64
WIRE 48 80 48 -96
WIRE 160 80 48 80
WIRE 688 80 656 80
WIRE -96 96 -96 48
WIRE 192 112 192 96
WIRE 416 144 416 64
WIRE 464 144 416 144
WIRE 688 144 640 144
WIRE 800 144 752 144
WIRE 464 160 416 160
WIRE 576 160 528 160
WIRE 688 160 656 160
WIRE -304 176 -304 144
WIRE 688 176 640 176
WIRE 688 192 656 192
WIRE 192 208 192 192
WIRE -96 224 -96 176
WIRE -32 224 -96 224
WIRE 160 224 -32 224
WIRE 256 240 224 240
WIRE 416 240 416 160
WIRE 416 240 256 240
WIRE 48 256 48 80
WIRE 160 256 48 256
WIRE 688 256 640 256
WIRE 800 256 752 256
WIRE -96 272 -96 224
WIRE 688 272 656 272
WIRE 192 288 192 272
WIRE 688 288 640 288
WIRE 688 304 656 304
WIRE 416 320 416 240
WIRE 464 320 416 320
WIRE 464 336 416 336
WIRE 576 336 528 336
WIRE 192 384 192 368
WIRE -96 400 -96 352
WIRE -32 400 -96 400
WIRE 160 400 -32 400
WIRE 272 416 224 416
WIRE 416 416 416 336
WIRE 416 416 272 416
WIRE 48 432 48 256
WIRE 160 432 48 432
WIRE -96 448 -96 400
WIRE 192 464 192 448
WIRE 416 496 416 416
WIRE 464 496 416 496
WIRE 464 512 416 512
WIRE 576 512 528 512
WIRE 192 560 192 544
WIRE -96 576 -96 528
WIRE -32 576 -96 576
WIRE 160 576 -32 576
WIRE 272 592 224 592
WIRE 416 592 416 512
WIRE 416 592 272 592
WIRE 48 608 48 432
WIRE 160 608 48 608
WIRE -96 624 -96 576
WIRE 192 640 192 624
WIRE 416 672 416 592
WIRE 464 672 416 672
WIRE 464 688 416 688
WIRE 576 688 528 688
WIRE 192 736 192 720
WIRE -96 752 -96 704
WIRE -32 752 -96 752
WIRE 160 752 -32 752
WIRE -96 768 -96 752
WIRE 272 768 224 768
WIRE 416 768 416 688
WIRE 416 768 272 768
WIRE 48 784 48 608
WIRE 160 784 48 784
WIRE 192 816 192 800
WIRE -96 896 -96 848
FLAG -96 896 0
FLAG -496 -160 0
FLAG -336 -160 0
FLAG -304 32 v1
IOPIN -304 32 In
FLAG -304 176 0
FLAG 448 -288 0
FLAG 192 -240 0
FLAG 192 -64 0
FLAG 192 112 0
FLAG 192 288 0
FLAG 192 464 0
FLAG 192 640 0
FLAG 192 816 0
FLAG 192 -336 v1
IOPIN 192 -336 In
FLAG 192 -160 v1
IOPIN 192 -160 In
FLAG 192 16 v1
IOPIN 192 16 In
FLAG 192 192 v1
IOPIN 192 192 In
FLAG 192 368 v1
IOPIN 192 368 In
FLAG 192 544 v1
IOPIN 192 544 In
FLAG 192 720 v1
IOPIN 192 720 In
FLAG -464 -400 Vsig
FLAG -336 -304 Vref
FLAG 576 688 1
FLAG 576 512 2
FLAG 576 336 3
FLAG 576 160 4
FLAG 576 -16 5
FLAG 576 -192 6
FLAG 576 -368 7
FLAG 640 288 3
FLAG 656 272 5
FLAG 640 256 7
FLAG 656 304 1
FLAG 640 176 3
FLAG 656 160 6
FLAG 640 144 7
FLAG 656 192 2
FLAG 640 64 5
FLAG 656 48 6
FLAG 640 32 7
FLAG 656 80 4
FLAG 800 256 a0
FLAG 800 144 a1
FLAG 800 32 a2
FLAG 272 -288 c7
FLAG 272 -112 c6
FLAG 272 64 c5
FLAG 256 240 c4
FLAG 272 416 c3
FLAG 272 592 c2
FLAG 272 768 c1
FLAG -32 -304 r7
FLAG -32 -128 r6
FLAG -32 48 r5
FLAG -32 224 r4
FLAG -32 400 r3
FLAG -32 576 r2
FLAG -32 752 r1
SYMBOL res -240 -288 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 0 56 VBottom 0
SYMATTR InstName R1
SYMATTR Value 2k
SYMBOL res -112 -272 R0
SYMATTR InstName R2
SYMATTR Value 220
SYMBOL res -112 -128 R0
SYMATTR InstName R3
SYMATTR Value 220
SYMBOL res -112 80 R0
SYMATTR InstName R4
SYMATTR Value 220
SYMBOL res -112 256 R0
SYMATTR InstName R5
SYMATTR Value 220
SYMBOL res -112 432 R0
SYMATTR InstName R6
SYMATTR Value 220
SYMBOL res -112 608 R0
SYMATTR InstName R7
SYMATTR Value 220
SYMBOL Digital\\xor 512 -416 R0
SYMATTR InstName A1
SYMBOL Digital\\xor 512 -240 R0
SYMATTR InstName A2
SYMBOL Digital\\xor 512 -64 R0
SYMATTR InstName A3
SYMBOL Digital\\xor 512 112 R0
SYMATTR InstName A4
SYMBOL Digital\\xor 512 288 R0
SYMATTR InstName A5
SYMBOL Digital\\xor 512 464 R0
SYMATTR InstName A6
SYMBOL Digital\\xor 512 640 R0
SYMATTR InstName A7
SYMBOL voltage -496 -288 R0
WINDOW 123 37 74 Left 0
WINDOW 39 0 0 Left 0
WINDOW 3 -33 174 Left 0
SYMATTR InstName V1
SYMATTR Value PULSE(0 2.5 0 .1m 10n 10n .1m)
SYMBOL res -112 752 R0
SYMATTR InstName R11
SYMATTR Value 220
SYMBOL voltage -336 -288 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V2
SYMATTR Value 5
SYMBOL voltage -304 48 R0
WINDOW 123 0 0 Left 0
WINDOW 39 24 132 Left 0
SYMATTR InstName V3
SYMATTR Value 5
SYMBOL Comparators\\LT1721 192 704 R0
SYMATTR InstName U8
SYMBOL Comparators\\LT1721 192 528 R0
SYMATTR InstName U1
SYMBOL Comparators\\LT1721 192 352 R0
SYMATTR InstName U2
SYMBOL Comparators\\LT1721 192 176 R0
SYMATTR InstName U3
SYMBOL Comparators\\LT1721 192 0 R0
SYMATTR InstName U4
SYMBOL Comparators\\LT1721 192 -176 R0
SYMATTR InstName U5
SYMBOL Comparators\\LT1721 192 -352 R0
SYMATTR InstName U6
SYMBOL Digital\\or 720 208 R0
SYMATTR InstName A8
SYMBOL Digital\\or 720 96 R0
SYMATTR InstName A9
SYMBOL Digital\\or 720 -16 R0
SYMATTR InstName A10
TEXT -352 -472 Left 0 !.tran 0 0.2m 0 .1u
TEXT -352 -448 Left 0 !.options plotwinsize=0
TEXT -48 -464 Left 0 ;3-Bit-Flash-ADC
TEXT 696 -376 Left 0 ;Encoder
RECTANGLE Normal 864 800 352 -432