* SPICE netlist
Chold Vsamp 0 4.4e-12
Cpin Vpin 0 11e-12
Rsample Vpin Vsamp 5e3
Cmux1 Vpin 0 13.1e-12
Cmux2 N001 0 5.6e-12
Rmux N001 Vpin 200
Lwire N002 N003 1.126e-6
Rwire N004 N003 0.022
Cwire N001 0 5e-12
Lwire1 N004 N005 1.126e-6
Rwire1 Vtline N005 0.022
Cwire1 N004 0 5e-12
Lwire2 Vtline N006 1.126e-6
Rwire2 Vpad N006 0.022
Cwire2 Vtline 0 5e-12
Cwire3 Vpad 0 5e-12
Cpads Vpad 0 36e-12
Rfinger Vfin Vpad 1.5e3
Cfinger Vfin 0 30e-12
I1 0 Vpin PWL(0 0)
Chold1 Vsamp2 0 4.4e-12
Cpin1 Vpin2 0 11e-12
Rsample1 Vpin2 Vsamp2 5e3
Lwire3 N007 N008 1.126e-6
Rwire3 N009 N008 0.022
Cwire4 Vpin2 0 5e-12
Lwire4 N009 N010 1.126e-6
Rwire4 Vtline2 N010 0.022
Cwire5 N009 0 5e-12
Lwire5 Vtline2 N011 1.126e-6
Rwire5 Vpad2 N011 0.022
Cwire6 Vtline2 0 5e-12
Cwire7 Vpad2 0 5e-12
Cpads1 Vpad2 0 36e-12
Rfinger1 Vfin2 Vpad2 1.5e3
Cfinger1 Vfin2 0 30e-12
I2 0 Vpin2 PWL(0 0)
Cstray N001 0 5e-12
Cstray1 Vpin2 0 5e-12
Desd 0 N001 1N914
Desd1 N001 3v3 1N914
V1 3v3 0 3.3 Rser=2
Desd2 0 Vpin2 1N914
Desd3 Vpin2 3v3 1N914
Rdamp N002 N001 400
Rdamp2 N007 Vpin2 400
Cpsdecoup 3v3 0 1e-6
.tran 3u
.ic v(Vpad) = 0
.ic v(Vpin2) = 0
.ic v(Vpin) = 0
.ic v(Vfin) = -2000
.ic v(Vpad2) = 0
.ic v(Vfin2) = -2000

* LTspice schematic (.asc)
Version 4
SHEET 1 2480 784
WIRE -8 -392 -24 -392
WIRE 8 -392 -8 -392
WIRE -24 -344 -24 -392
WIRE -872 -216 -920 -216
WIRE -744 -216 -792 -216
WIRE -632 -216 -632 -312
WIRE -632 -216 -744 -216
WIRE -584 -216 -632 -216
WIRE -536 -216 -584 -216
WIRE -504 -216 -536 -216
WIRE -392 -216 -424 -216
WIRE -216 -216 -392 -216
WIRE -88 -216 -216 -216
WIRE -24 -216 -24 -280
WIRE -24 -216 -88 -216
WIRE 8 -216 -24 -216
WIRE 72 -216 8 -216
WIRE 184 -216 152 -216
WIRE 280 -216 264 -216
WIRE 392 -216 360 -216
WIRE 424 -216 392 -216
WIRE 520 -216 504 -216
WIRE 632 -216 600 -216
WIRE 664 -216 632 -216
WIRE 760 -216 744 -216
WIRE 872 -216 840 -216
WIRE 952 -216 872 -216
WIRE 1000 -216 952 -216
WIRE 1096 -216 1000 -216
WIRE 1208 -216 1176 -216
WIRE 1240 -216 1208 -216
WIRE -1112 -184 -1224 -184
WIRE -1096 -184 -1112 -184
WIRE -1064 -184 -1096 -184
WIRE -1224 -152 -1224 -184
WIRE -1112 -152 -1112 -184
WIRE -920 -152 -920 -216
WIRE -744 -152 -744 -216
WIRE -536 -152 -536 -216
WIRE -392 -152 -392 -216
WIRE -216 -152 -216 -216
WIRE -88 -152 -88 -216
WIRE 8 -152 8 -216
WIRE 392 -152 392 -216
WIRE 632 -152 632 -216
WIRE 872 -152 872 -216
WIRE 1000 -152 1000 -216
WIRE 1240 -152 1240 -216
WIRE -1224 -72 -1224 -88
WIRE -920 -56 -920 -88
WIRE -744 -56 -744 -88
WIRE -536 -56 -536 -88
WIRE -392 -56 -392 -88
WIRE -216 -56 -216 -88
WIRE -88 -56 -88 -88
WIRE 8 -56 8 -88
WIRE 392 -56 392 -88
WIRE 632 -56 632 -88
WIRE 872 -56 872 -88
WIRE 1000 -56 1000 -88
WIRE 1240 -56 1240 -88
WIRE -40 56 -56 56
WIRE -24 56 -40 56
WIRE -56 104 -56 56
WIRE -872 232 -920 232
WIRE -744 232 -792 232
WIRE -632 232 -632 136
WIRE -632 232 -744 232
WIRE -584 232 -632 232
WIRE -520 232 -584 232
WIRE -104 232 -520 232
WIRE -56 232 -56 168
WIRE -56 232 -104 232
WIRE 8 232 -56 232
WIRE 72 232 8 232
WIRE 184 232 152 232
WIRE 280 232 264 232
WIRE 392 232 360 232
WIRE 424 232 392 232
WIRE 520 232 504 232
WIRE 632 232 600 232
WIRE 664 232 632 232
WIRE 760 232 744 232
WIRE 872 232 840 232
WIRE 952 232 872 232
WIRE 1000 232 952 232
WIRE 1096 232 1000 232
WIRE 1224 232 1176 232
WIRE 1240 232 1224 232
WIRE -920 296 -920 232
WIRE -744 296 -744 232
WIRE -520 296 -520 232
WIRE -104 296 -104 232
WIRE 8 296 8 232
WIRE 392 296 392 232
WIRE 632 296 632 232
WIRE 872 296 872 232
WIRE 1000 296 1000 232
WIRE 1240 296 1240 232
WIRE -920 392 -920 360
WIRE -744 392 -744 360
WIRE -520 392 -520 360
WIRE -104 392 -104 360
WIRE 8 392 8 360
WIRE 392 392 392 360
WIRE 632 392 632 360
WIRE 872 392 872 360
WIRE 1000 392 1000 360
WIRE 1240 392 1240 360
FLAG -920 -56 0
FLAG -744 -56 0
FLAG -536 -56 0
FLAG -392 -56 0
FLAG 8 -56 0
FLAG 392 -56 0
FLAG 632 -56 0
FLAG 872 -56 0
FLAG 1000 -56 0
FLAG 1240 -56 0
FLAG -632 -392 0
FLAG -584 -216 Vpin
FLAG 952 -216 Vpad
FLAG -920 392 0
FLAG -744 392 0
FLAG 8 392 0
FLAG 392 392 0
FLAG 632 392 0
FLAG 872 392 0
FLAG 1000 392 0
FLAG 1240 392 0
FLAG -632 56 0
FLAG -584 232 Vpin2
FLAG 952 232 Vpad2
FLAG -88 -56 0
FLAG -520 392 0
FLAG -920 -216 Vsamp
FLAG -920 232 Vsamp2
FLAG -216 -56 0
FLAG -1112 -72 0
FLAG -1096 -184 3v3
FLAG -8 -392 3v3
FLAG -104 392 0
FLAG -40 56 3v3
FLAG 1208 -216 Vfin
FLAG 1224 232 Vfin2
FLAG 632 -216 Vtline
FLAG 632 232 Vtline2
FLAG -1224 -72 0
SYMBOL cap -936 -152 R0
SYMATTR InstName Chold
SYMATTR Value 4.4e-12
SYMBOL cap -760 -152 R0
SYMATTR InstName Cpin
SYMATTR Value 11e-12
SYMBOL res -776 -232 R90
SYMATTR InstName Rsample
SYMATTR Value 5e3
SYMBOL cap -552 -152 R0
SYMATTR InstName Cmux1
SYMATTR Value 13.1e-12
SYMBOL cap -408 -152 R0
SYMATTR InstName Cmux2
SYMATTR Value 5.6e-12
SYMBOL res -408 -232 R90
SYMATTR InstName Rmux
SYMATTR Value 200
SYMBOL ind 168 -200 R270
SYMATTR InstName Lwire
SYMATTR Value 1.126e-6
SYMBOL res 376 -232 R90
SYMATTR InstName Rwire
SYMATTR Value 0.022
SYMBOL cap -8 -152 R0
SYMATTR InstName Cwire
SYMATTR Value 5e-12
SYMBOL ind 408 -200 R270
SYMATTR InstName Lwire1
SYMATTR Value 1.126e-6
SYMBOL res 616 -232 R90
SYMATTR InstName Rwire1
SYMATTR Value 0.022
SYMBOL cap 376 -152 R0
SYMATTR InstName Cwire1
SYMATTR Value 5e-12
SYMBOL ind 648 -200 R270
SYMATTR InstName Lwire2
SYMATTR Value 1.126e-6
SYMBOL res 856 -232 R90
SYMATTR InstName Rwire2
SYMATTR Value 0.022
SYMBOL cap 616 -152 R0
SYMATTR InstName Cwire2
SYMATTR Value 5e-12
SYMBOL cap 856 -152 R0
SYMATTR InstName Cwire3
SYMATTR Value 5e-12
SYMBOL cap 984 -152 R0
SYMATTR InstName Cpads
SYMATTR Value 36e-12
SYMBOL res 1192 -232 R90
SYMATTR InstName Rfinger
SYMATTR Value 1.5e3
SYMBOL cap 1224 -152 R0
SYMATTR InstName Cfinger
SYMATTR Value 30e-12
SYMBOL current -632 -392 R0
SYMATTR Value PWL(0 0)
SYMATTR InstName I1
SYMBOL cap -936 296 R0
SYMATTR InstName Chold1
SYMATTR Value 4.4e-12
SYMBOL cap -760 296 R0
SYMATTR InstName Cpin1
SYMATTR Value 11e-12
SYMBOL res -776 216 R90
SYMATTR InstName Rsample1
SYMATTR Value 5e3
SYMBOL ind 168 248 R270
SYMATTR InstName Lwire3
SYMATTR Value 1.126e-6
SYMBOL res 376 216 R90
SYMATTR InstName Rwire3
SYMATTR Value 0.022
SYMBOL cap -8 296 R0
SYMATTR InstName Cwire4
SYMATTR Value 5e-12
SYMBOL ind 408 248 R270
SYMATTR InstName Lwire4
SYMATTR Value 1.126e-6
SYMBOL res 616 216 R90
SYMATTR InstName Rwire4
SYMATTR Value 0.022
SYMBOL cap 376 296 R0
SYMATTR InstName Cwire5
SYMATTR Value 5e-12
SYMBOL ind 648 248 R270
SYMATTR InstName Lwire5
SYMATTR Value 1.126e-6
SYMBOL res 856 216 R90
SYMATTR InstName Rwire5
SYMATTR Value 0.022
SYMBOL cap 616 296 R0
SYMATTR InstName Cwire6
SYMATTR Value 5e-12
SYMBOL cap 856 296 R0
SYMATTR InstName Cwire7
SYMATTR Value 5e-12
SYMBOL cap 984 296 R0
SYMATTR InstName Cpads1
SYMATTR Value 36e-12
SYMBOL res 1192 216 R90
SYMATTR InstName Rfinger1
SYMATTR Value 1.5e3
SYMBOL cap 1224 296 R0
SYMATTR InstName Cfinger1
SYMATTR Value 30e-12
SYMBOL current -632 56 R0
SYMATTR Value PWL(0 0)
SYMATTR InstName I2
SYMBOL cap -104 -152 R0
SYMATTR InstName Cstray
SYMATTR Value 5e-12
SYMBOL cap -536 296 R0
SYMATTR InstName Cstray1
SYMATTR Value 5e-12
SYMBOL diode -200 -88 R180
SYMATTR InstName Desd
SYMATTR Value 1N914
SYMBOL diode -8 -280 R180
SYMATTR InstName Desd1
SYMATTR Value 1N914
SYMBOL voltage -1112 -168 R0
SYMATTR SpiceLine Rser=2
SYMATTR InstName V1
SYMATTR Value 3.3
SYMBOL diode -88 360 R180
SYMATTR InstName Desd2
SYMATTR Value 1N914
SYMBOL diode -40 168 R180
SYMATTR InstName Desd3
SYMATTR Value 1N914
SYMBOL res 168 -232 R90
SYMATTR InstName Rdamp
SYMATTR Value 400
SYMBOL res 168 216 R90
SYMATTR InstName Rdamp2
SYMATTR Value 400
SYMBOL cap -1240 -152 R0
SYMATTR InstName Cpsdecoup
SYMATTR Value 1e-6