* SPICE netlist
V1 Vdd 0 15
V2 Vss 0 -15
V3 INx 0 PULSE(0 3 0 20n 20n 50u 200u)
C1 SF 0 12p
V6 VS1B 0 PULSE(0 40 50u 10u 50u 15u)
V7 VS1A 0 0
R3 0 D1 1k
C2 D1 0 5.1p
V5 _EN 0 0
R2 0 D2 1k
C5 D2 0 5.1p
R4 0 D3 1k
C6 D3 0 5.1p
C7 FF 0 12p
V4 VS2B 0 5
V8 VS2A 0 -10
V9 VS3B 0 SINE(0 10 10K)
V10 VS3A 0 5
V11 NegFV 0 -10
V12 PosFV 0 10
XU1 INx INx VS1A D1 VS1B VS2B D2 VS2A NegFV SF FF PosFV VS3A D3 VS3B Vss Vdd 0 _EN N001 ADG5243F ;pnba IN1/F1)IN2/F2)S1A)D1)S1B)S2B)D2)S2A)NEGFV)SF)FF)POSFV)S3A)D3)S3B)VSS)VDD)GND)_EN/F0)IN3
V13 N001 0 3
.tran 500u

* LTspice schematic (.asc)
Version 4
SHEET 1 1712 1120
WIRE -856 -528 -856 -544
WIRE -744 -528 -744 -544
WIRE -632 -528 -632 -544
WIRE -520 -528 -520 -544
WIRE -24 -528 -24 -560
WIRE 104 -528 104 -560
WIRE -120 -448 -152 -448
WIRE -856 -432 -856 -448
WIRE -744 -432 -744 -448
WIRE -632 -432 -632 -448
WIRE -520 -432 -520 -448
WIRE 248 -416 200 -416
WIRE 328 -416 248 -416
WIRE 408 -416 328 -416
WIRE 328 -400 328 -416
WIRE 408 -400 408 -416
WIRE -120 -384 -152 -384
WIRE -120 -320 -152 -320
WIRE 408 -320 408 -336
WIRE -856 -304 -856 -320
WIRE -728 -304 -728 -320
WIRE 248 -288 200 -288
WIRE 552 -288 248 -288
WIRE 632 -288 552 -288
WIRE 552 -272 552 -288
WIRE 632 -272 632 -288
WIRE -120 -256 -152 -256
WIRE -856 -208 -856 -224
WIRE -728 -208 -728 -224
WIRE -120 -192 -152 -192
WIRE 632 -192 632 -208
WIRE 248 -160 200 -160
WIRE 776 -160 248 -160
WIRE 856 -160 776 -160
WIRE 776 -144 776 -160
WIRE 856 -144 856 -160
WIRE -120 -128 -152 -128
WIRE -120 -80 -152 -80
WIRE 232 -80 200 -80
WIRE 856 -64 856 -80
WIRE -856 -16 -856 -32
WIRE -728 -16 -728 -32
WIRE -120 -16 -152 -16
WIRE 248 -16 200 -16
WIRE 392 -16 248 -16
WIRE -120 48 -216 48
WIRE 232 48 200 48
WIRE 280 48 232 48
WIRE 392 64 392 48
WIRE -856 80 -856 64
WIRE -728 80 -728 64
WIRE -216 80 -216 48
WIRE 280 128 280 112
WIRE -56 144 -56 112
WIRE 56 160 56 112
WIRE 136 176 136 112
WIRE -216 192 -216 160
WIRE -856 224 -856 208
WIRE -728 224 -728 208
WIRE -856 320 -856 304
WIRE -728 320 -728 304
WIRE -856 464 -856 448
WIRE -728 464 -728 448
WIRE -856 560 -856 544
WIRE -728 560 -728 544
FLAG -856 -432 0
FLAG -744 -432 0
FLAG -744 -544 Vdd
FLAG -856 -544 Vss
FLAG -728 -208 0
FLAG 136 176 0
FLAG 280 128 0
FLAG 232 48 SF
FLAG -856 80 0
FLAG -728 80 0
FLAG -728 -32 VS1B
FLAG -856 -32 VS1A
FLAG 408 -320 0
FLAG 328 -320 0
FLAG -728 -320 INx
FLAG -152 -80 INx
FLAG -152 -448 VS1A
FLAG 56 160 Vss
FLAG 104 -560 Vdd
FLAG 248 -416 D1
FLAG -856 -208 0
FLAG -856 -320 _EN
FLAG 232 -80 _EN
FLAG -152 -320 VS2A
FLAG -152 -16 INx
FLAG -152 -256 VS2B
FLAG -152 -192 VS3A
FLAG -152 -128 VS3B
FLAG -152 -384 VS1B
FLAG 632 -192 0
FLAG 552 -192 0
FLAG 248 -288 D2
FLAG 856 -64 0
FLAG 776 -64 0
FLAG 248 -160 D3
FLAG 392 64 0
FLAG 248 -16 FF
FLAG -856 320 0
FLAG -728 320 0
FLAG -856 560 0
FLAG -728 560 0
FLAG -856 208 VS2A
FLAG -728 208 VS2B
FLAG -856 448 VS3A
FLAG -728 448 VS3B
FLAG -632 -432 0
FLAG -520 -432 0
FLAG -520 -544 NegFV
FLAG -632 -544 PosFV
FLAG -24 -560 PosFV
FLAG -56 144 NegFV
FLAG -216 192 0
SYMBOL voltage -744 -544 R0
SYMATTR InstName V1
SYMATTR Value 15
SYMBOL voltage -856 -544 R0
SYMATTR InstName V2
SYMATTR Value -15
SYMBOL voltage -728 -320 M0
SYMATTR Value PULSE(0 3 0 20n 20n 50u 200u)
SYMATTR InstName V3
SYMBOL cap 264 48 R0
SYMATTR InstName C1
SYMATTR Value 12p
SYMBOL voltage -728 -32 R0
SYMATTR InstName V6
SYMATTR Value PULSE(0 40 50u 10u 50u 15u)
SYMBOL voltage -856 -32 R0
SYMATTR InstName V7
SYMATTR Value 0
SYMBOL res 312 -304 M180
SYMATTR InstName R3
SYMATTR Value 1k
SYMBOL cap 392 -400 R0
SYMATTR InstName C2
SYMATTR Value 5.1p
SYMBOL voltage -856 -320 R0
SYMATTR InstName V5
SYMATTR Value 0
SYMBOL res 536 -176 M180
SYMATTR InstName R2
SYMATTR Value 1k
SYMBOL cap 616 -272 R0
SYMATTR InstName C5
SYMATTR Value 5.1p
SYMBOL res 760 -48 M180
SYMATTR InstName R4
SYMATTR Value 1k
SYMBOL cap 840 -144 R0
SYMATTR InstName C6
SYMATTR Value 5.1p
SYMBOL cap 376 -16 R0
SYMATTR InstName C7
SYMATTR Value 12p
SYMBOL voltage -728 208 R0
SYMATTR InstName V4
SYMATTR Value 5
SYMBOL voltage -856 208 R0
SYMATTR InstName V8
SYMATTR Value -10
SYMBOL voltage -728 448 R0
SYMATTR InstName V9
SYMATTR Value SINE(0 10 10K)
SYMBOL voltage -856 448 R0
SYMATTR InstName V10
SYMATTR Value 5
SYMBOL voltage -520 -544 R0
SYMATTR InstName V11
SYMATTR Value -10
SYMBOL voltage -632 -544 R0
SYMATTR InstName V12
SYMATTR Value 10
SYMBOL ADG5243F 40 -112 R0
SYMATTR InstName U1
SYMBOL voltage -216 64 R0
SYMATTR InstName V13
SYMATTR Value 3