* SPICE netlist
V2 N008 0 SINE(3 1 2000 0) AC 1
S1 N003 N004 N009 0 MySwitch
S2 N011 N004 N013 0 MySwitch
S3 N015 N004 N016 0 MySwitch
S4 N019 N004 N020 0 MySwitch
V5 N013 0 PULSE(-1 1 36n 2n 2n 17n 72n)
V6 N016 0 PULSE(-1 1 18n 2n 2n 17n 72n)
V7 N020 0 PULSE(-1 1 54n 2n 2n 17n 72n)
V1 N009 0 PULSE(-1 1 0 2n 2n 17n 72n)
R5 N008 SIG0 1k
V4 N012 0 SINE(3 1 2000 250u) AC 1
R1 N012 SIG180 1k
V8 N018 0 SINE(3 1 2000 125u) AC 1
R2 N018 SIG90 1k
V9 N021 0 SINE(3 1 2000 375u) AC 1
R3 N021 SIG270 1k
C1 SIG0 0 47n
C2 SIG180 0 47n
C3 SIG90 0 47n
C4 SIG270 0 47n
XU1 SIG0 N002 N001 0 N002 AD8602 ;pnba In+)In-)V+)V-)OUT
V10 N001 0 5
XU2 SIG180 N010 N001 0 N010 AD8602 ;pnba In+)In-)V+)V-)OUT
XU3 SIG90 N014 N001 0 N014 AD8602 ;pnba In+)In-)V+)V-)OUT
XU4 SIG270 N017 N001 0 N017 AD8602 ;pnba In+)In-)V+)V-)OUT
R6 0 TP_OUT 50
C11 TP_OUT N007 100n
R4 N002 N003 100
C6 N003 0 100n
R8 N010 N011 100
C7 N011 0 100n
R9 N014 N015 100
C8 N015 0 100n
R10 N017 N019 100
C9 N019 0 100n
R7 N004 N005 50
C5 N006 0 240p
C10 N007 0 150p
L1 N006 N007 360n
C13 N005 0 150p
L3 N005 N006 360n
.tran 0 2m 0 100p
;ac oct 100 1Meg 100Meg

* LTspice schematic (.asc)
Version 4
SHEET 1 2224 1328
WIRE -536 -664 -696 -664
WIRE -696 -616 -696 -664
WIRE -696 -520 -696 -536
WIRE -536 -440 -536 -664
WIRE -536 -440 -600 -440
WIRE -456 -408 -584 -408
WIRE -536 -376 -536 -440
WIRE -584 -360 -584 -408
WIRE -568 -360 -584 -360
WIRE -456 -344 -456 -408
WIRE -456 -344 -504 -344
WIRE -440 -344 -456 -344
WIRE -344 -344 -360 -344
WIRE -104 -344 -344 -344
WIRE 56 -344 -24 -344
WIRE 88 -344 56 -344
WIRE 248 -344 168 -344
WIRE 312 -344 248 -344
WIRE 440 -344 392 -344
WIRE 504 -344 440 -344
WIRE 648 -344 584 -344
WIRE 952 -344 648 -344
WIRE 1064 -344 1016 -344
WIRE 1096 -344 1064 -344
WIRE -1064 -328 -1112 -328
WIRE -904 -328 -984 -328
WIRE -744 -328 -904 -328
WIRE -568 -328 -744 -328
WIRE -344 -328 -344 -344
WIRE -744 -312 -744 -328
WIRE -1112 -296 -1112 -328
WIRE -536 -296 -536 -312
WIRE 248 -296 248 -344
WIRE 440 -296 440 -344
WIRE 648 -296 648 -344
WIRE 1096 -296 1096 -344
WIRE -344 -248 -344 -264
WIRE -88 -248 -88 -296
WIRE -744 -232 -744 -248
WIRE -600 -232 -600 -440
WIRE -536 -232 -600 -232
WIRE -264 -216 -312 -216
WIRE -40 -216 -40 -296
WIRE -40 -216 -184 -216
WIRE -1112 -200 -1112 -216
WIRE -456 -200 -584 -200
WIRE -536 -168 -536 -232
WIRE 248 -168 248 -232
WIRE 440 -168 440 -232
WIRE 648 -168 648 -232
WIRE -584 -152 -584 -200
WIRE -568 -152 -584 -152
WIRE 1096 -152 1096 -216
WIRE -456 -136 -456 -200
WIRE -456 -136 -504 -136
WIRE -440 -136 -456 -136
WIRE -344 -136 -360 -136
WIRE -104 -136 -344 -136
WIRE 56 -136 56 -344
WIRE 56 -136 -24 -136
WIRE -744 -120 -824 -120
WIRE -568 -120 -744 -120
WIRE -344 -120 -344 -136
WIRE -744 -104 -744 -120
WIRE -536 -88 -536 -104
WIRE -1064 -56 -1112 -56
WIRE -904 -56 -984 -56
WIRE -824 -56 -824 -120
WIRE -824 -56 -904 -56
WIRE -88 -56 -88 -88
WIRE -600 -40 -600 -232
WIRE -536 -40 -600 -40
WIRE -344 -40 -344 -56
WIRE -744 -24 -744 -40
WIRE -264 -24 -312 -24
WIRE -40 -24 -40 -88
WIRE -40 -24 -184 -24
WIRE -456 -8 -584 -8
WIRE -1112 8 -1112 -56
WIRE -536 24 -536 -40
WIRE -584 40 -584 -8
WIRE -568 40 -584 40
WIRE -456 56 -456 -8
WIRE -456 56 -504 56
WIRE -440 56 -456 56
WIRE -344 56 -360 56
WIRE -104 56 -344 56
WIRE 56 56 56 -136
WIRE 56 56 -24 56
WIRE -744 72 -824 72
WIRE -568 72 -744 72
WIRE -344 72 -344 56
WIRE -744 88 -744 72
WIRE -536 104 -536 88
WIRE -1112 120 -1112 88
WIRE -88 136 -88 104
WIRE -600 152 -600 -40
WIRE -536 152 -600 152
WIRE -344 152 -344 136
WIRE -744 168 -744 152
WIRE -264 168 -312 168
WIRE -40 168 -40 104
WIRE -40 168 -184 168
WIRE -456 184 -584 184
WIRE -1064 216 -1112 216
WIRE -904 216 -984 216
WIRE -824 216 -824 72
WIRE -824 216 -904 216
WIRE -536 216 -536 152
WIRE -584 232 -584 184
WIRE -568 232 -584 232
WIRE -456 248 -456 184
WIRE -456 248 -504 248
WIRE -440 248 -456 248
WIRE -344 248 -360 248
WIRE -104 248 -344 248
WIRE 56 248 56 56
WIRE 56 248 -24 248
WIRE -744 264 -824 264
WIRE -568 264 -744 264
WIRE -344 264 -344 248
WIRE -1112 280 -1112 216
WIRE -744 280 -744 264
WIRE -536 296 -536 280
WIRE -88 328 -88 296
WIRE -344 344 -344 328
WIRE -744 360 -744 344
WIRE -264 360 -312 360
WIRE -40 360 -40 296
WIRE -40 360 -184 360
WIRE -1112 392 -1112 360
WIRE -1064 488 -1112 488
WIRE -904 488 -984 488
WIRE -824 488 -824 264
WIRE -824 488 -904 488
WIRE -1112 552 -1112 488
WIRE -1112 664 -1112 632
FLAG -1112 -200 0
FLAG -88 -248 0
FLAG -312 -24 0
FLAG -312 168 0
FLAG -312 360 0
FLAG -88 -56 0
FLAG -88 136 0
FLAG -88 328 0
FLAG -312 -216 0
FLAG -904 -328 SIG0
FLAG -1112 120 0
FLAG -904 -56 SIG180
FLAG -1112 392 0
FLAG -904 216 SIG90
FLAG -1112 664 0
FLAG -904 488 SIG270
FLAG -744 -232 0
FLAG -744 -24 0
FLAG -744 168 0
FLAG -744 360 0
FLAG -696 -520 0
FLAG -536 -296 0
FLAG -536 -88 0
FLAG -536 104 0
FLAG -536 296 0
FLAG 1096 -152 0
FLAG 1064 -344 TP_OUT
FLAG -344 -248 0
FLAG -344 -40 0
FLAG -344 152 0
FLAG -344 344 0
FLAG 440 -168 0
FLAG 648 -168 0
FLAG 248 -168 0
SYMBOL voltage -1112 -312 R0
SYMATTR Value2 AC 1
SYMATTR InstName V2
SYMATTR Value SINE(3 1 2000 0)
SYMBOL sw -120 -344 R270
SYMATTR InstName S1
SYMATTR Value ""
SYMATTR InstName MySwitch
SYMBOL sw -120 -136 R270
SYMATTR InstName S2
SYMATTR Value ""
SYMATTR InstName MySwitch
SYMBOL sw -120 56 R270
SYMATTR InstName S3
SYMATTR Value ""
SYMATTR InstName MySwitch
SYMBOL sw -120 248 R270
SYMATTR InstName S4
SYMATTR Value ""
SYMATTR InstName MySwitch
SYMBOL voltage -168 -24 R90
SYMATTR InstName V5
SYMATTR Value PULSE(-1 1 36n 2n 2n 17n 72n)
SYMBOL voltage -168 168 R90
SYMATTR InstName V6
SYMATTR Value PULSE(-1 1 18n 2n 2n 17n 72n)
SYMBOL voltage -168 360 R90
SYMATTR InstName V7
SYMATTR Value PULSE(-1 1 54n 2n 2n 17n 72n)
SYMBOL voltage -168 -216 R90
SYMATTR InstName V1
SYMATTR Value PULSE(-1 1 0 2n 2n 17n 72n)
SYMBOL res -1080 -312 R270
SYMATTR InstName R5
SYMATTR Value 1k
SYMBOL voltage -1112 -8 R0
SYMATTR Value2 AC 1
SYMATTR InstName V4
SYMATTR Value SINE(3 1 2000 250u)
SYMBOL res -1080 -40 R270
SYMATTR InstName R1
SYMATTR Value 1k
SYMBOL voltage -1112 264 R0
SYMATTR Value2 AC 1
SYMATTR InstName V8
SYMATTR Value SINE(3 1 2000 125u)
SYMBOL res -1080 232 R270
SYMATTR InstName R2
SYMATTR Value 1k
SYMBOL voltage -1112 536 R0
SYMATTR Value2 AC 1
SYMATTR InstName V9
SYMATTR Value SINE(3 1 2000 375u)
SYMBOL res -1080 504 R270
SYMATTR InstName R3
SYMATTR Value 1k
SYMBOL cap -760 -312 R0
SYMATTR InstName C1
SYMATTR Value 47n
SYMBOL cap -760 -104 R0
SYMATTR InstName C2
SYMATTR Value 47n
SYMBOL cap -760 88 R0
SYMATTR InstName C3
SYMATTR Value 47n
SYMBOL cap -760 280 R0
SYMATTR InstName C4
SYMATTR Value 47n
SYMBOL Opamps\\AD8602 -536 -408 R0
SYMATTR InstName U1
SYMBOL voltage -696 -632 R0
SYMATTR InstName V10
SYMATTR Value 5
SYMBOL Opamps\\AD8602 -536 -200 R0
SYMATTR InstName U2
SYMBOL Opamps\\AD8602 -536 -8 R0
SYMATTR InstName U3
SYMBOL Opamps\\AD8602 -536 184 R0
SYMATTR InstName U4
SYMBOL res 1112 -200 R180
SYMATTR InstName R6
SYMATTR Value 50
SYMBOL cap 1016 -360 R90
SYMATTR InstName C11
SYMATTR Value 100n
SYMBOL res -456 -328 R270
SYMATTR InstName R4
SYMATTR Value 100
SYMBOL cap -360 -328 R0
SYMATTR InstName C6
SYMATTR Value 100n
SYMBOL res -456 -120 R270
SYMATTR InstName R8
SYMATTR Value 100
SYMBOL cap -360 -120 R0
SYMATTR InstName C7
SYMATTR Value 100n
SYMBOL res -456 72 R270
SYMATTR InstName R9
SYMATTR Value 100
SYMBOL cap -360 72 R0
SYMATTR InstName C8
SYMATTR Value 100n
SYMBOL res -456 264 R270
SYMATTR InstName R10
SYMATTR Value 100
SYMBOL cap -360 264 R0
SYMATTR InstName C9
SYMATTR Value 100n
SYMBOL res 72 -328 R270
SYMATTR InstName R7
SYMATTR Value 50
SYMBOL cap 424 -296 R0
SYMATTR InstName C5
SYMATTR Value 240p
SYMBOL cap 632 -296 R0
SYMATTR InstName C10
SYMATTR Value 150p
SYMBOL ind 488 -328 R270
SYMATTR InstName L1
SYMATTR Value 360n
SYMBOL cap 232 -296 R0
SYMATTR InstName C13
SYMATTR Value 150p
SYMBOL ind 296 -328 R270
SYMATTR InstName L3
SYMATTR Value 360n