* 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 5u 5u 50u)
V7 VS1A 0 0
R3 0 D1 1k
C2 D1 0 2p
V5 EN 0 5
R2 0 D2 1k
C5 D2 0 2p
C7 FF 0 12p
V4 VS2B 0 SINE(0 10 10K)
V8 VS2A 0 -10
XU2 D1 VS1B Vss 0 0 INx VS2A D2 VS2B Vdd EN FF SF INx VS1A ADG5436F ;pnba D1)S1B)VSS)GND)DR)IN2/F2)S2A)D2)S2B)VDD)EN)FF)SF)IN1/F1)S1A
.tran 500u

* LTspice schematic (.asc)
Version 4
SHEET 1 1488 896
WIRE 168 -448 152 -448
WIRE -728 -432 -744 -432
WIRE -616 -432 -632 -432
WIRE -744 -400 -744 -432
WIRE -632 -400 -632 -432
WIRE 152 -400 152 -448
WIRE -8 -320 -40 -320
WIRE -744 -304 -744 -320
WIRE -632 -304 -632 -320
WIRE 344 -288 312 -288
WIRE 440 -288 344 -288
WIRE 520 -288 440 -288
WIRE 440 -272 440 -288
WIRE 520 -272 520 -288
WIRE -8 -256 -40 -256
WIRE -728 -208 -744 -208
WIRE -600 -208 -616 -208
WIRE 520 -192 520 -208
WIRE -744 -176 -744 -208
WIRE -616 -176 -616 -208
WIRE -8 -176 -40 -176
WIRE 344 -144 312 -144
WIRE 664 -144 344 -144
WIRE 744 -144 664 -144
WIRE 664 -128 664 -144
WIRE 744 -128 744 -144
WIRE -8 -112 -40 -112
WIRE -744 -80 -744 -96
WIRE -616 -80 -616 -96
WIRE -24 -64 -40 -64
WIRE -8 -64 -24 -64
WIRE 344 -64 312 -64
WIRE 504 -64 344 -64
WIRE 744 -48 744 -64
WIRE -24 -16 -24 -64
WIRE -8 -16 -24 -16
WIRE 344 -16 312 -16
WIRE 408 -16 344 -16
WIRE 504 16 504 0
WIRE -8 32 -40 32
WIRE 344 32 312 32
WIRE -728 64 -744 64
WIRE -600 64 -616 64
WIRE 344 64 344 32
WIRE 408 64 408 48
WIRE -744 112 -744 64
WIRE -616 112 -616 64
WIRE 88 176 88 112
WIRE 104 176 88 176
WIRE 216 176 216 112
WIRE -744 208 -744 192
WIRE -616 208 -616 192
WIRE -728 304 -744 304
WIRE -600 304 -616 304
WIRE -744 352 -744 304
WIRE -616 352 -616 304
WIRE -744 448 -744 432
WIRE -616 448 -616 432
FLAG -744 -304 0
FLAG -632 -304 0
FLAG -616 -432 Vdd
FLAG -728 -432 Vss
FLAG -616 -80 0
FLAG 216 176 0
FLAG 408 64 0
FLAG 344 -16 SF
FLAG -744 208 0
FLAG -616 208 0
FLAG -600 64 VS1B
FLAG -728 64 VS1A
FLAG 520 -192 0
FLAG 440 -192 0
FLAG -600 -208 INx
FLAG -40 -64 INx
FLAG -40 -320 VS1A
FLAG 104 176 Vss
FLAG 168 -448 Vdd
FLAG 344 -288 D1
FLAG -744 -80 0
FLAG -728 -208 EN
FLAG -40 32 EN
FLAG -40 -176 VS2A
FLAG -40 -112 VS2B
FLAG -40 -256 VS1B
FLAG 744 -48 0
FLAG 664 -48 0
FLAG 344 -144 D2
FLAG 504 16 0
FLAG 344 -64 FF
FLAG -744 448 0
FLAG -616 448 0
FLAG -728 304 VS2A
FLAG -600 304 VS2B
FLAG 344 64 0
SYMBOL voltage -632 -416 R0
SYMATTR InstName V1
SYMATTR Value 15
SYMBOL voltage -744 -416 R0
SYMATTR InstName V2
SYMATTR Value -15
SYMBOL voltage -616 -192 M0
SYMATTR Value PULSE(0 3 0 20n 20n 50u 200u)
SYMATTR InstName V3
SYMBOL cap 392 -16 R0
SYMATTR InstName C1
SYMATTR Value 12p
SYMBOL voltage -616 96 R0
SYMATTR InstName V6
SYMATTR Value PULSE(0 40 50u 5u 5u 50u)
SYMBOL voltage -744 96 R0
SYMATTR InstName V7
SYMATTR Value 0
SYMBOL res 424 -176 M180
SYMATTR InstName R3
SYMATTR Value 1k
SYMBOL cap 504 -272 R0
SYMATTR InstName C2
SYMATTR Value 2p
SYMBOL voltage -744 -192 R0
SYMATTR InstName V5
SYMATTR Value 5
SYMBOL res 648 -32 M180
SYMATTR InstName R2
SYMATTR Value 1k
SYMBOL cap 728 -128 R0
SYMATTR InstName C5
SYMATTR Value 2p
SYMBOL cap 488 -64 R0
SYMATTR InstName C7
SYMATTR Value 12p
SYMBOL voltage -616 336 R0
SYMATTR InstName V4
SYMATTR Value SINE(0 10 10K)
SYMBOL voltage -744 336 R0
SYMATTR InstName V8
SYMATTR Value -10
SYMBOL ADG5436F 152 -112 R0
SYMATTR InstName U2