* SPICE netlist
R5 N007 x {R*3}
C5 N007 0 {x}
R6 N008 N007 {R*3}
C6 N008 0 {x}
R7 N009 N008 {R*3}
C7 N009 0 {x}
V2 x 0 SINE(0 10 10k) AC 4 0
R8 N016 x {R}
C8 N016 0 {x*3}
V1 V+ 0 15
V3 0 V- 15
R1 N023 x {R*3}
C1 N023 0 {x*2}
R2 N024 N023 {R*3}
C2 N024 0 {x*2}
R3 N025 N024 {R*3}
C3 N025 0 {x*2}
R4 N032 x {R}
C4 N032 0 {x*2*3}
R11 N004 N003 9.1k
C9 N001 N004 5.6n
R21 N001 N003 8.2k
R22 N003 N002 8.2k
C13 N003 0 15n
R29 N006 N005 6.2k
C17 Out1.1 N006 2.7n
R30 Out1.1 N005 10k
R31 N005 N001 10k
C18 N005 0 39n
R14 N013 N012 9.1k
C10 N010 N013 5.6n
R17 N010 N012 8.2k
R20 N012 N011 8.2k
C11 N012 0 15n
R23 N015 N014 6.2k
C12 Out2.1 N015 2.7n
R24 Out2.1 N014 10k
R25 N014 N010 10k
C14 N014 0 39n
R26 N020 N019 9.1k
C15 N017 N020 5.6n
R27 N017 N019 8.2k
R28 N019 N018 8.2k
C16 N019 0 15n
R32 N022 N021 6.2k
C19 Out1.2 N022 2.7n
R33 Out1.2 N021 10k
R34 N021 N017 10k
C20 N021 0 39n
R35 N029 N028 9.1k
C21 N026 N029 5.6n
R36 N026 N028 8.2k
R37 N028 N027 8.2k
C22 N028 0 15n
R38 N031 N030 6.2k
C23 Out2.2 N031 2.7n
R39 Out2.2 N030 10k
R40 N030 N026 10k
C24 N030 0 39n
XU1 N009 y1 V+ V- y1 opamp2 ;pnba In+)In-)V+)V-)OUT
XU3 N016 y2 V+ V- y2 opamp2 ;pnba In+)In-)V+)V-)OUT
XU5 N025 y3 V+ V- y3 opamp2 ;pnba In+)In-)V+)V-)OUT
XU6 N032 y4 V+ V- y4 opamp2 ;pnba In+)In-)V+)V-)OUT
XU9 0 N004 V+ V- N001 opamp2 ;pnba In+)In-)V+)V-)OUT
XU10 0 N013 V+ V- N010 opamp2 ;pnba In+)In-)V+)V-)OUT
XU12 0 N020 V+ V- N017 opamp2 ;pnba In+)In-)V+)V-)OUT
XU11 0 N006 V+ V- Out1.1 opamp2 ;pnba In+)In-)V+)V-)OUT
XU13 0 N015 V+ V- Out2.1 opamp2 ;pnba In+)In-)V+)V-)OUT
XU14 0 N022 V+ V- Out1.2 opamp2 ;pnba In+)In-)V+)V-)OUT
XU15 0 N031 V+ V- Out2.2 opamp2 ;pnba In+)In-)V+)V-)OUT
XU16 0 N029 V+ V- N026 opamp2 ;pnba In+)In-)V+)V-)OUT
B1 N002 0 V=Limit(V(V-),(V(x)*V(y1)/10),V(V+))
B2 N011 0 V=Limit(V(V-),(V(x)*V(y2)/10),V(V+))
B3 N018 0 V=Limit(V(V-),(V(x)*V(y3)/10),V(V+))
B4 N027 0 V=Limit(V(V-),(V(x)*V(y4)/10),V(V+))
.step param R 100k 1000k 100k
.tran 0 1m 0 1u
.options plotwinsize=0
.param x = 1p
.subckt opamp2 1 2 VCC VSS 5
G1 10 0 1 2 1e5
R1 10 0 1
C1 10 0 1.59m
B1 5 VGND I=LIMIT(V(VSS)/10, V(10), V(VCC)/10)
R2 5 VGND 10
E1 VGND 0 VMID 0 1
RM1 VCC VMID 1e4
RM2 VSS VMID 1e4

* LTspice schematic (.asc)
Version 4
SHEET 1 3120 1872
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FLAG -1512 936 0
FLAG -1560 168 0
FLAG -1464 344 V-
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FLAG -392 -600 V-
FLAG -728 -280 V+
FLAG -728 -104 V-
FLAG 1560 -776 Out1.1
FLAG -408 216 V+
FLAG -408 392 V-
FLAG -760 696 V+
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FLAG -232 -872 x
FLAG -8 -600 0
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FLAG -8 392 0
FLAG -8 872 0
FLAG 536 -600 0
FLAG 536 -88 0
FLAG 520 392 0
FLAG 504 888 0
SYMBOL res -936 -680 R90
SYMATTR InstName R5
SYMATTR Value {R*3}
SYMBOL cap -920 -648 R0
SYMATTR InstName C5
SYMATTR Value {x}
SYMBOL res -744 -680 R90
SYMATTR InstName R6
SYMATTR Value {R*3}
SYMBOL cap -728 -648 R0
SYMATTR InstName C6
SYMATTR Value {x}
SYMBOL res -552 -680 R90
SYMATTR InstName R7
SYMATTR Value {R*3}
SYMBOL cap -536 -648 R0
SYMATTR InstName C7
SYMATTR Value {x}
SYMBOL voltage -1512 680 M0
SYMATTR Value2 AC 4 0
SYMATTR InstName V2
SYMATTR Value SINE(0 10 10k)
SYMBOL res -920 -184 R90
SYMATTR InstName R8
SYMATTR Value {R}
SYMBOL cap -904 -152 R0
SYMATTR InstName C8
SYMATTR Value {x*3}
SYMBOL voltage -1464 8 R0
SYMATTR InstName V1
SYMATTR Value 15
SYMBOL voltage -1464 184 R0
SYMATTR InstName V3
SYMATTR Value 15
SYMBOL res -952 312 R90
SYMATTR InstName R1
SYMATTR Value {R*3}
SYMBOL cap -936 344 R0
SYMATTR InstName C1
SYMATTR Value {x*2}
SYMBOL res -760 312 R90
SYMATTR InstName R2
SYMATTR Value {R*3}
SYMBOL cap -744 344 R0
SYMATTR InstName C2
SYMATTR Value {x*2}
SYMBOL res -568 312 R90
SYMATTR InstName R3
SYMATTR Value {R*3}
SYMBOL cap -552 344 R0
SYMATTR InstName C3
SYMATTR Value {x*2}
SYMBOL res -952 792 R90
SYMATTR InstName R4
SYMATTR Value {R}
SYMBOL cap -936 824 R0
SYMATTR InstName C4
SYMATTR Value {x*2*3}
SYMBOL res 696 -824 R90
SYMATTR InstName R11
SYMATTR Value 9.1k
SYMBOL cap 680 -904 R0
SYMATTR InstName C9
SYMATTR Value 5.6n
SYMBOL res 520 -920 R0
SYMATTR InstName R21
SYMATTR Value 8.2k
SYMBOL res 488 -824 R90
SYMATTR InstName R22
SYMATTR Value 8.2k
SYMBOL cap 520 -776 R0
SYMATTR InstName C13
SYMATTR Value 15n
SYMBOL res 1240 -808 R90
SYMATTR InstName R29
SYMATTR Value 6.2k
SYMBOL cap 1224 -888 R0
SYMATTR InstName C17
SYMATTR Value 2.7n
SYMBOL res 1064 -904 R0
SYMATTR InstName R30
SYMATTR Value 10k
SYMBOL res 1032 -808 R90
SYMATTR InstName R31
SYMATTR Value 10k
SYMBOL cap 1064 -760 R0
SYMATTR InstName C18
SYMATTR Value 39n
SYMBOL res 696 -328 R90
SYMATTR InstName R14
SYMATTR Value 9.1k
SYMBOL cap 680 -408 R0
SYMATTR InstName C10
SYMATTR Value 5.6n
SYMBOL res 520 -424 R0
SYMATTR InstName R17
SYMATTR Value 8.2k
SYMBOL res 488 -328 R90
SYMATTR InstName R20
SYMATTR Value 8.2k
SYMBOL cap 520 -280 R0
SYMATTR InstName C11
SYMATTR Value 15n
SYMBOL res 1240 -312 R90
SYMATTR InstName R23
SYMATTR Value 6.2k
SYMBOL cap 1224 -392 R0
SYMATTR InstName C12
SYMATTR Value 2.7n
SYMBOL res 1064 -408 R0
SYMATTR InstName R24
SYMATTR Value 10k
SYMBOL res 1032 -312 R90
SYMATTR InstName R25
SYMATTR Value 10k
SYMBOL cap 1064 -264 R0
SYMATTR InstName C14
SYMATTR Value 39n
SYMBOL res 680 168 R90
SYMATTR InstName R26
SYMATTR Value 9.1k
SYMBOL cap 664 88 R0
SYMATTR InstName C15
SYMATTR Value 5.6n
SYMBOL res 504 72 R0
SYMATTR InstName R27
SYMATTR Value 8.2k
SYMBOL res 472 168 R90
SYMATTR InstName R28
SYMATTR Value 8.2k
SYMBOL cap 504 216 R0
SYMATTR InstName C16
SYMATTR Value 15n
SYMBOL res 1224 184 R90
SYMATTR InstName R32
SYMATTR Value 6.2k
SYMBOL cap 1208 104 R0
SYMATTR InstName C19
SYMATTR Value 2.7n
SYMBOL res 1048 88 R0
SYMATTR InstName R33
SYMATTR Value 10k
SYMBOL res 1016 184 R90
SYMATTR InstName R34
SYMATTR Value 10k
SYMBOL cap 1048 232 R0
SYMATTR InstName C20
SYMATTR Value 39n
SYMBOL res 664 648 R90
SYMATTR InstName R35
SYMATTR Value 9.1k
SYMBOL cap 648 568 R0
SYMATTR InstName C21
SYMATTR Value 5.6n
SYMBOL res 488 552 R0
SYMATTR InstName R36
SYMATTR Value 8.2k
SYMBOL res 456 648 R90
SYMATTR InstName R37
SYMATTR Value 8.2k
SYMBOL cap 488 696 R0
SYMATTR InstName C22
SYMATTR Value 15n
SYMBOL res 1208 664 R90
SYMATTR InstName R38
SYMATTR Value 6.2k
SYMBOL cap 1192 584 R0
SYMATTR InstName C23
SYMATTR Value 2.7n
SYMBOL res 1032 568 R0
SYMATTR InstName R39
SYMATTR Value 10k
SYMBOL res 1000 664 R90
SYMATTR InstName R40
SYMATTR Value 10k
SYMBOL cap 1032 712 R0
SYMATTR InstName C24
SYMATTR Value 39n
SYMBOL Opamps\\opamp2 -392 -744 R0
SYMATTR InstName U1
SYMBOL Opamps\\opamp2 -728 -248 R0
SYMATTR InstName U3
SYMBOL Opamps\\opamp2 -408 248 R0
SYMATTR InstName U5
SYMBOL Opamps\\opamp2 -760 728 R0
SYMATTR InstName U6
SYMBOL Opamps\\opamp2 792 -856 R0
SYMATTR InstName U9
SYMBOL Opamps\\opamp2 792 -360 R0
SYMATTR InstName U10
SYMBOL Opamps\\opamp2 776 136 R0
SYMATTR InstName U12
SYMBOL Opamps\\opamp2 1336 -840 R0
SYMATTR InstName U11
SYMBOL Opamps\\opamp2 1336 -344 R0
SYMATTR InstName U13
SYMBOL Opamps\\opamp2 1320 152 R0
SYMATTR InstName U14
SYMBOL Opamps\\opamp2 1304 632 R0
SYMATTR InstName U15
SYMBOL Opamps\\opamp2 760 616 R0
SYMATTR InstName U16
SYMBOL bv -8 -760 R0
SYMATTR InstName B1
SYMATTR Value V=Limit(V(V-),(V(x)*V(y1)/10),V(V+))
SYMBOL bv -8 -248 R0
SYMATTR InstName B2
SYMATTR Value V=Limit(V(V-),(V(x)*V(y2)/10),V(V+))
SYMBOL bv -8 232 R0
SYMATTR InstName B3
SYMATTR Value V=Limit(V(V-),(V(x)*V(y3)/10),V(V+))
SYMBOL bv -8 712 R0
SYMATTR InstName B4
SYMATTR Value V=Limit(V(V-),(V(x)*V(y4)/10),V(V+))