* SPICE netlist
V1 +V 0 15
V2 -V 0 -15
R1 N006 N005 100K
R2 N003 N001 100K
V3 IN+ 0 SINE(0 1 10)
XU1 IN+ N005 +V -V N006 LT1013 ;pnba In+)In-)V+)V-)OUT
XU2 IN- N003 +V -V N001 LT1013 ;pnba In+)In-)V+)V-)OUT
R3 N005 N003 1K
XU3 N004 N002 +V -V OUT LT1013 ;pnba In+)In-)V+)V-)OUT
R4 N002 N001 100K
R5 N004 N006 100K
R6 OUT N002 100K
R7 0 N004 100K
V4 IN- IN+ SINE(0 10m 100)
R8 N007 IN- 10Meg
R9 N007 IN+ 5Meg
R10 N007 N008 10Meg
C1 N008 N007 10p
XU4 IN+ N008 +V -V N007 LT1013 ;pnba In+)In-)V+)V-)OUT
R11 N007 -V 100K
.tran 300m

* LTspice schematic (.asc)
Version 4
SHEET 1 976 704
WIRE 56 -336 56 -352
WIRE -296 -320 -488 -320
WIRE -152 -320 -296 -320
WIRE 24 -320 -152 -320
WIRE 184 -304 88 -304
WIRE 248 -304 184 -304
WIRE 344 -304 328 -304
WIRE 360 -304 344 -304
WIRE 456 -304 440 -304
WIRE 24 -288 8 -288
WIRE 184 -288 184 -304
WIRE 56 -256 56 -272
WIRE -152 -208 -152 -320
WIRE 8 -192 8 -288
WIRE 184 -192 184 -208
WIRE 184 -192 8 -192
WIRE 184 -176 184 -192
WIRE -488 -160 -488 -320
WIRE 392 -160 392 -176
WIRE 344 -144 344 -304
WIRE 360 -144 344 -144
WIRE 456 -128 456 -304
WIRE 456 -128 424 -128
WIRE 488 -128 456 -128
WIRE 360 -112 344 -112
WIRE 184 -80 184 -96
WIRE 184 -80 8 -80
WIRE 392 -80 392 -96
WIRE 184 -64 184 -80
WIRE 56 0 56 -16
WIRE 8 16 8 -80
WIRE 24 16 8 16
WIRE 184 32 184 16
WIRE 184 32 88 32
WIRE 248 32 184 32
WIRE 344 32 344 -112
WIRE 344 32 328 32
WIRE 360 32 344 32
WIRE 456 32 440 32
WIRE -488 48 -488 -80
WIRE -296 48 -488 48
WIRE -248 48 -296 48
WIRE 8 48 -248 48
WIRE 24 48 8 48
WIRE -488 64 -488 48
WIRE 56 80 56 64
WIRE -248 96 -248 48
WIRE 184 112 184 96
WIRE -488 160 -488 144
WIRE 56 176 56 160
WIRE 8 192 8 48
WIRE 24 192 8 192
WIRE 184 208 184 192
WIRE 184 208 88 208
WIRE -248 224 -248 176
WIRE -152 224 -152 -128
WIRE -152 224 -248 224
WIRE -136 224 -152 224
WIRE -40 224 -56 224
WIRE 24 224 -40 224
WIRE -40 240 -40 224
WIRE -440 256 -440 240
WIRE -344 256 -344 240
WIRE 56 256 56 240
WIRE -152 320 -152 224
WIRE -40 320 -40 304
WIRE -40 320 -152 320
WIRE 184 320 184 208
WIRE 184 320 -40 320
WIRE -440 352 -440 336
WIRE -344 352 -344 336
FLAG -344 352 0
FLAG 56 -16 +V
FLAG -344 240 +V
FLAG 56 80 -V
FLAG -440 352 0
FLAG -440 240 -V
FLAG -488 160 0
FLAG 56 -256 +V
FLAG 56 -352 -V
FLAG 392 -176 +V
FLAG 392 -80 -V
FLAG 456 32 0
FLAG 56 256 +V
FLAG 56 160 -V
FLAG 184 96 -V
FLAG 488 -128 OUT
FLAG -296 -320 IN-
FLAG -296 48 IN+
SYMBOL voltage -344 240 R0
SYMATTR InstName V1
SYMATTR Value 15
SYMBOL voltage -440 240 R0
SYMATTR InstName V2
SYMATTR Value -15
SYMBOL res 168 32 M180
SYMATTR InstName R1
SYMATTR Value 100K
SYMBOL res 168 -192 M180
SYMATTR InstName R2
SYMATTR Value 100K
SYMBOL voltage -488 48 R0
SYMATTR InstName V3
SYMATTR Value SINE(0 1 10)
SYMBOL opamps\\LT1014 56 -32 R0
SYMATTR InstName U1
SYMBOL opamps\\LT1014 56 -240 M180
SYMATTR InstName U2
SYMBOL res 168 -80 M180
SYMATTR InstName R3
SYMATTR Value 1K
SYMBOL opamps\\LT1014 392 -192 R0
SYMATTR InstName U3
SYMBOL res 344 -320 R90
SYMATTR InstName R4
SYMATTR Value 100K
SYMBOL res 344 16 R90
SYMATTR InstName R5
SYMATTR Value 100K
SYMBOL res 456 -320 R90
SYMATTR InstName R6
SYMATTR Value 100K
SYMBOL res 456 16 R90
SYMATTR InstName R7
SYMATTR Value 100K
SYMBOL voltage -488 -176 R0
SYMATTR InstName V4
SYMATTR Value SINE(0 10m 100)
SYMBOL res -168 -112 M180
SYMATTR InstName R8
SYMATTR Value 10Meg
SYMBOL res -264 192 M180
SYMATTR InstName R9
SYMATTR Value 5Meg
SYMBOL res -152 208 M90
SYMATTR InstName R10
SYMATTR Value 10Meg
SYMBOL cap -56 240 R0
SYMATTR InstName C1
SYMATTR Value 10p
SYMBOL opamps\\LT1014 56 272 M180
SYMATTR InstName U4
SYMBOL res 168 208 M180
SYMATTR InstName R11
SYMATTR Value 100K