Version 4
SHEET 1 2920 932
WIRE 672 -592 640 -592
WIRE 640 -560 640 -592
WIRE 640 -448 640 -480
WIRE 864 -400 864 -432
WIRE 1552 -384 1552 -400
WIRE 1152 -352 1152 -384
WIRE 1552 -352 1552 -384
WIRE 1872 -336 1856 -336
WIRE 992 -304 976 -304
WIRE 1872 -304 1856 -304
WIRE 640 -288 640 -320
WIRE 2224 -288 2208 -288
WIRE 2528 -288 2528 -336
WIRE 2560 -288 2560 -336
WIRE 2592 -288 2592 -336
WIRE 2624 -288 2624 -336
WIRE 1872 -272 1856 -272
WIRE 864 -256 864 -320
WIRE 1360 -256 1312 -256
WIRE 1392 -256 1360 -256
WIRE 640 -176 640 -208
WIRE 2016 -160 2016 -192
WIRE 2048 -160 2048 -192
WIRE 2080 -160 2080 -192
FLAG 640 -448 0
FLAG 672 -592 Vin
FLAG 992 -272 VDD
FLAG 1360 -256 VDD
FLAG 992 -240 0
FLAG 1184 -160 D3
FLAG 1712 -240 VDD
FLAG 1712 -272 0
FLAG 1856 -304 VDD
FLAG 1856 -272 0
FLAG 2048 -160 D0
FLAG 2400 -208 VDD
FLAG 2400 -176 0
FLAG 2224 -288 VDD
FLAG 2720 -192 VDD
FLAG 2560 -96 Vout
FLAG 864 -256 0
FLAG 864 -432 clk
FLAG 1856 -336 clk
FLAG 640 -176 0
FLAG 640 -320 VDD
FLAG 2736 -448 VDD
FLAG 2384 -448 clk
FLAG 2528 -560 D0
FLAG 2624 -560 D3
FLAG 2016 -160 Vfold
FLAG 1552 -384 VoutM
FLAG 2560 -560 D1
FLAG 2592 -560 D2
FLAG 1120 -160 D2
FLAG 1488 -160 D3
FLAG 1584 -160 D2
FLAG 2080 -160 D1
FLAG 976 -304 clk
FLAG 1152 -384 Vin
FLAG 2048 -384 Vin
SYMBOL voltage 640 -576 R0
WINDOW 0 36 42 Left 0
WINDOW 3 -73 165 Left 0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName Vin1
SYMATTR Value PULSE(0 5 0 5u)
SYMBOL voltage 864 -416 R0
WINDOW 0 36 42 Left 0
WINDOW 3 -85 257 VLeft 0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName Vb1
SYMATTR Value PULSE(0 5 5n 100p 100p 4.9n 10n)
SYMBOL voltage 640 -304 R0
WINDOW 0 36 42 Left 0
WINDOW 3 44 15 Left 0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName VDD
SYMATTR Value 5
SYMBOL Ideal_4_bit_DAC 2416 -272 R90
SYMATTR InstName X2
SYMBOL 4_bit_register 2416 -528 R90
SYMATTR InstName X5
SYMBOL ideal_2_bit_dac 1696 -176 R270
SYMATTR InstName X3
SYMBOL 2_bit_coase_ADC 1008 -336 R90
SYMATTR InstName X4
SYMBOL 2_bit_Folding_ADC 1904 -368 R90
SYMATTR InstName X1
TEXT 752 -88 Left 0 !.tran 0 5u 0 .1n uic
TEXT 752 -120 Left 0 !.options plotwinsize=0
TEXT 1224 -80 Left 0 ;Coarse ADC for MSBs
TEXT 1888 -56 Left 0 ;Folder and Fine ADC for LSBs
TEXT 2400 32 Left 0 ;Ideal DAC for Signal Reconstruction
TEXT 1224 -632 Left 0 ;Note that the coarse ADC and folder-FineADC are working in parrellel\nVoutM is reconstruction signal using MSBs, while Vout is that using both\nMSBs and LSBs which means higher resolution (4bits)\nAlso, if Vfold is multiplied by 4, we can get a folders output with full range swing