* SPICE netlist
V1 V+ 0 3.3
R1 N001 IN 29.4K
V2 IN 0 SINE(1.65 1 10k)
C1 N002 N001 10n
R2 N003 N002 8.66K
C2 N004 N003 10n
R3 N005 N004 11.8K
C3 N006 N005 10n
R4 N007 N006 21.5K
C4 OUT N007 10n
R5 N008 V+ 10K
R6 N008 0 10K
R7 OUT N009 11.8K
XU5 N004 N001 V+ 0 N002 LT1466 ;pnba In+)In-)V+)V-)OUT
XU6 N008 N003 V+ 0 N004 LT1466 ;pnba In+)In-)V+)V-)OUT
XU7 N009 N005 V+ 0 N006 LT1466 ;pnba In+)In-)V+)V-)OUT
XU8 N008 N007 V+ 0 OUT LT1466 ;pnba In+)In-)V+)V-)OUT
.tran 5m

* LTspice schematic (.asc)
Version 4.1
SHEET 1 1328 448
WIRE -392 -208 -424 -208
WIRE -296 -208 -328 -208
WIRE -104 -192 -136 -192
WIRE 40 -192 -40 -192
WIRE 216 -176 184 -176
WIRE 312 -176 280 -176
WIRE 504 -160 472 -160
WIRE 648 -160 568 -160
WIRE -344 -112 -360 -112
WIRE -360 -96 -360 -112
WIRE -56 -96 -72 -96
WIRE -536 -80 -664 -80
WIRE -424 -80 -424 -208
WIRE -424 -80 -456 -80
WIRE -392 -80 -424 -80
WIRE -72 -80 -72 -96
WIRE 264 -80 248 -80
WIRE -664 -64 -664 -80
WIRE -296 -64 -296 -208
WIRE -296 -64 -328 -64
WIRE -248 -64 -296 -64
WIRE -136 -64 -136 -192
WIRE -136 -64 -168 -64
WIRE -104 -64 -136 -64
WIRE 248 -64 248 -80
WIRE 552 -64 536 -64
WIRE -392 -48 -424 -48
WIRE 40 -48 40 -192
WIRE 40 -48 -40 -48
WIRE 88 -48 40 -48
WIRE 184 -48 184 -176
WIRE 184 -48 168 -48
WIRE 216 -48 184 -48
WIRE 536 -48 536 -64
WIRE -104 -32 -136 -32
WIRE 312 -32 312 -176
WIRE 312 -32 280 -32
WIRE 360 -32 312 -32
WIRE 472 -32 472 -160
WIRE 472 -32 440 -32
WIRE 504 -32 472 -32
WIRE -360 -16 -360 -32
WIRE 216 -16 200 -16
WIRE 648 -16 648 -160
WIRE 648 -16 568 -16
WIRE 664 -16 648 -16
WIRE -72 0 -72 -16
WIRE 504 0 472 0
WIRE 248 16 248 0
WIRE -664 32 -664 16
WIRE 536 32 536 16
WIRE -424 48 -424 -48
WIRE 40 48 40 -48
WIRE 40 48 -424 48
WIRE 200 64 200 -16
WIRE 328 64 200 64
WIRE 648 64 648 -16
WIRE 648 64 408 64
WIRE -296 112 -408 112
WIRE -136 112 -136 -32
WIRE -136 112 -216 112
WIRE 472 112 472 0
WIRE 472 112 -136 112
WIRE -408 128 -408 112
WIRE -136 128 -136 112
WIRE -408 224 -408 208
WIRE -136 224 -136 208
FLAG -408 224 0
FLAG -360 -112 V+
FLAG -408 112 V+
FLAG 664 -16 OUT
FLAG -664 -80 IN
FLAG -664 32 0
FLAG -72 -96 V+
FLAG 248 -80 V+
FLAG 536 -64 V+
FLAG -360 -16 0
FLAG -72 0 0
FLAG 248 16 0
FLAG 536 32 0
FLAG -136 224 0
SYMBOL voltage -408 112 R0
SYMATTR InstName V1
SYMATTR Value 3.3
SYMBOL res -440 -96 R90
SYMATTR InstName R1
SYMATTR Value 29.4K
SYMBOL voltage -664 -80 R0
SYMATTR InstName V2
SYMATTR Value SINE(1.65 1 10k)
SYMBOL cap -328 -224 R90
SYMATTR InstName C1
SYMATTR Value 10n
SYMBOL res -152 -80 R90
SYMATTR InstName R2
SYMATTR Value 8.66K
SYMBOL cap -40 -208 R90
SYMATTR InstName C2
SYMATTR Value 10n
SYMBOL res 184 -64 R90
SYMATTR InstName R3
SYMATTR Value 11.8K
SYMBOL cap 280 -192 R90
SYMATTR InstName C3
SYMATTR Value 10n
SYMBOL res 456 -48 R90
SYMATTR InstName R4
SYMATTR Value 21.5K
SYMBOL cap 568 -176 R90
SYMATTR InstName C4
SYMATTR Value 10n
SYMBOL res -200 96 R90
SYMATTR InstName R5
SYMATTR Value 10K
SYMBOL res -152 112 R0
SYMATTR InstName R6
SYMATTR Value 10K
SYMBOL res 424 48 R90
SYMATTR InstName R7
SYMATTR Value 11.8K
SYMBOL LT1466 -360 -128 R0
SYMATTR InstName U5
SYMBOL LT1466 -72 -112 R0
SYMATTR InstName U6
SYMBOL LT1466 248 -96 R0
SYMATTR InstName U7
SYMBOL LT1466 536 -80 R0
SYMATTR InstName U8