Version 4
SHEET 1 100 600
WIRE -2688 0 -2752 0
WIRE -2544 0 -2608 0
WIRE -2304 0 -2544 0
WIRE -2752 80 -2752 0
WIRE -2544 96 -2544 0
WIRE -2752 224 -2752 160
WIRE -2544 224 -2544 160
WIRE -2544 224 -2752 224
WIRE -2752 240 -2752 224
FLAG -2752 240 0
SYMBOL voltage -2752 64 R0
WINDOW 123 33 67 Left 2
WINDOW 39 0 0 Left 0
WINDOW 0 32 17 Left 2
WINDOW 3 34 43 Left 2
SYMATTR Value2 AC 1
SYMATTR InstName Vsensor
SYMATTR Value SINE(0 1 1k)
SYMBOL res -2592 -16 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 1k
SYMBOL cap -2560 96 R0
SYMATTR InstName C1
SYMATTR Value 100p
TEXT -2760 432 Left 2 !.TRAN 5m ;uic
TEXT -2740 496 Left 2 ;Uncommenting uic speeds up simulation,\nbut can cause internal settling issues in\nsome models, particularly Vref models.
WIRE -1952 -288 -1984 -288
WIRE -1840 -288 -1872 -288
WIRE -1744 -288 -1840 -288
WIRE -1568 -288 -1664 -288
WIRE -1984 -224 -1984 -288
WIRE -2176 -176 -2176 -208
WIRE -2080 -176 -2080 -208
WIRE -2176 -64 -2176 -96
WIRE -2080 -64 -2080 -96
WIRE -1760 -48 -1760 -192
WIRE -1840 -32 -1840 -288
WIRE -1792 -32 -1792 -48
WIRE -1792 -32 -1840 -32
WIRE -1776 -32 -1792 -32
WIRE -1568 -16 -1568 -288
WIRE -1568 -16 -1728 -16
WIRE -1792 0 -2304 0
WIRE -1776 0 -1792 0
WIRE -1568 0 -1568 -16
WIRE -1472 0 -1568 0
WIRE -1792 16 -1792 0
WIRE -1760 176 -1760 16
FLAG -1760 -192 Vp-1
FLAG -1760 176 Vn-1
FLAG -1984 -224 0
FLAG -2176 -64 0
FLAG -2080 -64 0
FLAG -2176 -208 Vp-1
FLAG -2080 -208 Vn-1
SYMBOL Opamps\\ADA4896 -1760 -80 R0
SYMATTR InstName U1-1
SYMBOL res -1856 -304 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1-1
SYMATTR Value 110
SYMBOL res -1648 -304 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2-1
SYMATTR Value 1k
SYMBOL voltage -2176 -192 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName VDD-1
SYMATTR Value 5
SYMBOL voltage -2080 -192 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName VSS-1
SYMATTR Value -5
WIRE -1328 -448 -1328 -512
WIRE -1328 0 -1472 0
FLAG -1328 -448 0
WIRE -704 -1008 -704 -1056
WIRE -576 -1008 -576 -1056
WIRE -704 -896 -704 -928
WIRE -576 -896 -576 -928
WIRE -688 -352 -688 -384
WIRE -656 -352 -656 -384
WIRE -624 -352 -624 -384
WIRE -96 -336 -384 -336
WIRE -880 -320 -880 -512
WIRE -736 -320 -880 -320
WIRE -736 -288 -752 -288
WIRE -384 -288 -384 -336
WIRE -384 -288 -560 -288
WIRE -736 -256 -880 -256
WIRE -736 -224 -752 -224
WIRE -384 -224 -560 -224
WIRE -736 -192 -768 -192
WIRE -384 -176 -384 -224
WIRE -96 -176 -384 -176
WIRE -768 -160 -768 -192
WIRE -688 -128 -688 -160
WIRE -656 -128 -656 -160
WIRE -624 -128 -624 -160
WIRE -880 0 -880 -256
FLAG -688 -384 Vp-2
FLAG -688 -128 Vn-2
FLAG -656 -384 0
FLAG -656 -128 Vp-2
FLAG -624 -384 Vp-2
FLAG -624 -128 Vn-2
FLAG -704 -896 0
FLAG -576 -896 0
FLAG -704 -1056 Vp-2
FLAG -576 -1056 Vn-2
FLAG -768 -160 0
FLAG -464 -512 fb--2
FLAG -464 0 fb+-2
FLAG -752 -224 fb+-2
FLAG -752 -288 fb--2
SYMBOL OpAmps\\ADA4945-HP -688 -256 R0
SYMATTR InstName U1-2
SYMBOL voltage -704 -1024 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName VDD-2
SYMATTR Value 5
SYMBOL voltage -576 -1024 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName VSS-2
SYMATTR Value -5
WIRE -1248 -512 -1328 -512
WIRE -880 -512 -1168 -512
WIRE -1248 0 -1328 0
WIRE -880 0 -1168 0
SYMBOL res -1152 -528 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1-2
SYMATTR Value 100
SYMBOL res -1152 -16 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3-2
SYMATTR Value 100
WIRE -720 -624 -768 -624
WIRE -592 -624 -656 -624
WIRE -768 -512 -768 -624
WIRE -768 -512 -880 -512
WIRE -720 -512 -768 -512
WIRE -592 -512 -592 -624
WIRE -592 -512 -640 -512
WIRE -464 -512 -592 -512
WIRE -752 0 -880 0
WIRE -720 0 -752 0
WIRE -592 0 -640 0
WIRE -464 0 -592 0
WIRE -752 112 -752 0
WIRE -720 112 -752 112
WIRE -592 112 -592 0
WIRE -592 112 -656 112
SYMBOL res -624 -528 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2-2
SYMATTR Value 1k
SYMBOL res -624 -16 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R4-2
SYMATTR Value 1k
SYMBOL cap -656 -640 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C1-2
SYMATTR Value 10p
SYMBOL cap -656 96 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C2-2
SYMATTR Value 10p
WIRE 640 -400 640 -464
WIRE 1008 -352 768 -352
WIRE 96 -336 -96 -336
WIRE 208 -336 176 -336
WIRE 336 -336 208 -336
WIRE 208 -320 208 -336
WIRE 1008 -320 1008 -352
WIRE 336 -272 336 -336
WIRE 416 -272 336 -272
WIRE 208 -256 208 -272
WIRE 208 -256 176 -256
WIRE 816 -256 768 -256
WIRE 848 -256 816 -256
WIRE 176 -240 176 -256
WIRE 208 -240 208 -256
WIRE 416 -240 336 -240
WIRE 1008 -208 1008 -240
WIRE 96 -176 -96 -176
WIRE 208 -176 208 -192
WIRE 208 -176 176 -176
WIRE 336 -176 336 -240
WIRE 336 -176 208 -176
WIRE 832 -160 768 -160
WIRE 640 -80 640 -112
WIRE 832 -16 832 -160
WIRE 832 96 832 64
FLAG 832 96 0
FLAG 1008 -208 0
FLAG 640 -80 0
FLAG 816 -256 out
FLAG 176 -240 0
SYMBOL voltage 832 -32 M0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName Vconv-3
SYMATTR Value PULSE(0 5 1u .2n .2n 9.8n 1u)
SYMBOL voltage 1008 -336 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName Vdd-3
SYMATTR Value 5
SYMBOL res 192 -352 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1-3
SYMATTR Value 24.9
SYMBOL res 192 -192 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2-3
SYMATTR Value 24.9
SYMBOL cap 192 -336 R0
WINDOW 0 40 20 Left 2
WINDOW 3 36 46 Left 2
SYMATTR InstName C1-3
SYMATTR Value 82p
SYMBOL cap 192 -240 R0
WINDOW 0 42 19 Left 2
WINDOW 3 35 43 Left 2
SYMATTR InstName C2-3
SYMATTR Value 82p
SYMBOL ADC\\LTC2387-18 672 -256 R0
SYMATTR InstName U1-3
SYMATTR SpiceLine
TEXT 688 -448 Left 2 ;
WIRE 144 -704 0 -704
WIRE 176 -704 144 -704
WIRE 640 -704 464 -704
WIRE 672 -704 640 -704
WIRE 0 -688 0 -704
WIRE 672 -688 672 -704
WIRE 144 -640 144 -704
WIRE 176 -640 144 -640
WIRE 528 -640 464 -640
WIRE 528 -624 528 -640
WIRE 672 -608 672 -624
WIRE 0 -592 0 -608
WIRE 320 -592 320 -608
WIRE 528 -544 528 -560
WIRE 640 -464 640 -704
FLAG 672 -608 0
FLAG 0 -592 0
FLAG 672 -704 ref_out
FLAG 320 -592 0
FLAG 528 -544 0
SYMBOL cap 656 -688 R0
SYMATTR InstName C1ref-3
SYMATTR Value 2.7u
SYMBOL voltage 0 -704 R0
WINDOW 123 24 124 Left 2
WINDOW 39 0 0 Left 2
WINDOW 0 37 13 Left 2
WINDOW 3 39 41 Left 2
SYMATTR InstName Vref-3
SYMATTR Value 5.5
TEXT 320 -672 Left 2 ;Schematic generator \ncould not find LTC6655LNB-4.096 \nin LTspice parts library
SYMBOL cap 512 -624 R0
SYMATTR InstName C5ref-3
SYMATTR Value 10u ic=1
TEXT 624 -768 Left 2 !.ic V(ref_out)=4.096