Version 4
SHEET 1 2580 1252
WIRE 224 0 176 0
WIRE 352 0 304 0
WIRE 528 0 480 0
WIRE 656 0 608 0
WIRE -416 64 -464 64
WIRE -224 64 -336 64
WIRE 352 80 352 0
WIRE 480 80 480 0
WIRE 704 80 704 48
WIRE -224 128 -224 64
WIRE 240 128 -224 128
WIRE 704 160 704 144
WIRE 704 160 592 160
WIRE 240 176 -224 176
WIRE -416 240 -464 240
WIRE -224 240 -224 176
WIRE -224 240 -336 240
WIRE 96 240 48 240
WIRE 240 240 160 240
WIRE 704 240 592 240
WIRE 704 256 704 240
WIRE -64 304 -96 304
WIRE 240 304 16 304
WIRE 704 336 704 320
WIRE 240 368 176 368
WIRE 176 448 176 368
WIRE 352 448 352 416
WIRE 480 464 480 416
WIRE 640 464 480 464
WIRE 752 464 720 464
WIRE 176 560 176 528
WIRE -96 672 -96 656
WIRE 416 672 416 656
WIRE -96 768 -96 752
WIRE 416 768 416 752
FLAG 352 448 0
FLAG 704 240 OUT1
FLAG 704 336 0
FLAG -464 240 0
FLAG -96 304 0
FLAG -96 768 0
FLAG 416 768 0
FLAG 416 656 sclk2
FLAG -96 656 sclk1
FLAG 176 560 0
FLAG -464 64 0
FLAG 176 0 0
FLAG 656 0 0
FLAG 704 48 0
FLAG 48 240 0
FLAG 752 464 0
SYMBOL voltage 320 0 M270
WINDOW 0 32 56 VTop 2
WINDOW 3 -32 56 VBottom 2
WINDOW 123 -68 56 VBottom 2
WINDOW 39 -50 56 VBottom 2
SYMATTR InstName V2
SYMATTR Value PWL(0 0 .1u 5)
SYMBOL cap 688 256 R0
SYMATTR InstName C1
SYMATTR Value 10p
SYMBOL voltage -320 64 R90
WINDOW 0 -32 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName Va+
SYMATTR Value PWL(0 0 400u 4.096)
SYMBOL voltage -320 240 M270
WINDOW 0 32 56 VTop 2
WINDOW 3 -32 56 VBottom 2
SYMATTR InstName Va-
SYMATTR Value PWL(0 4.096 400u 0)
SYMBOL voltage 32 304 R90
WINDOW 0 -32 56 VBottom 2
WINDOW 3 32 56 VTop 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value PULSE(0 1.8 227n .1n .1n 40n 199.5n)
SYMBOL voltage -96 656 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName Vsclk1
SYMATTR Value PULSE(0 1.8 9.5n .1n .1n 4.65n 9.5n)
SYMBOL bv 176 432 R0
SYMATTR InstName Bsclk
SYMATTR Value V=if(V(sclk2)>V(sclk1),V(sclk2),V(sclk1))
SYMBOL voltage 416 656 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName Vsclk2
SYMATTR Value PULSE(0 1.81 11.875n .1n .1n 66.5n 199.5n)
SYMBOL voltage 512 0 M90
WINDOW 0 -32 56 VBottom 2
WINDOW 3 32 56 VTop 2
WINDOW 123 68 56 VTop 2
WINDOW 39 50 56 VTop 2
SYMATTR InstName V3
SYMATTR Value 1.8
SYMBOL cap 688 144 M180
WINDOW 0 38 64 Left 2
WINDOW 3 41 41 Left 2
WINDOW 123 41 -7 Left 2
WINDOW 39 41 16 Left 2
SYMATTR InstName C2
SYMATTR Value 10µ
SYMATTR Value2 ic=4.096
SYMATTR SpiceLine Rser=10m
SYMBOL LTC2325-12 416 240 R0
SYMATTR InstName U1
SYMBOL cap 160 224 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 33 59 VTop 2
WINDOW 123 34 -27 VTop 2
SYMATTR InstName C3
SYMATTR Value 10p
SYMATTR Value2 ic=4.096
SYMBOL voltage 624 464 M90
WINDOW 0 -32 56 VBottom 2
WINDOW 3 32 56 VTop 2
WINDOW 123 68 56 VTop 2
WINDOW 39 50 56 VTop 2
SYMATTR InstName V4
SYMATTR Value 3
TEXT 640 592 Left 2 !.tran 400u
TEXT -176 448 Left 2 ;SCLK and _CNV\nare shown in timing\ndiagram on page 15, 16\nof LTC2325-12 data sheet