* SPICE netlist
V1 +V 0 5
V2 -V 0 -5
XU1 N001 N003 +V -V N002 0 LT1398 ;pnba In+)In-)V+)V-)OUT)SHDN
R1 N002 N003 324
R2 N003 0 107
XU2 N004 N006 +V -V N005 0 LT1398 ;pnba In+)In-)V+)V-)OUT)SHDN
R3 N005 N006 324
R4 N001 Y 1K
R5 N001 R-Y 1K
R6 N004 0 1K
R7 N004 Y 205
R8 N006 R-Y 316
R9 N006 B-Y 845
XU3 N007 N009 +V -V N008 0 LT1398 ;pnba In+)In-)V+)V-)OUT)SHDN
R10 N008 N009 324
R11 N009 0 107
R12 N007 Y 1K
R13 N007 B-Y 1K
R14 G N005 75
R15 R N002 75
R16 B N008 75
V3 Y 0 SINE(0 1 1Meg)
V4 R-Y 0 SINE(0 1 2Meg)
V5 B-Y 0 SINE(0 1 3Meg)
.tran 10u

* LTspice schematic (.asc)
Version 4
SHEET 1 960 1088
WIRE -320 -528 -480 -528
WIRE -192 -528 -240 -528
WIRE -96 -528 -192 -528
WIRE -32 -528 -96 -528
WIRE 112 -528 48 -528
WIRE 192 -528 192 -544
WIRE 112 -480 112 -528
WIRE 160 -480 112 -480
WIRE 336 -448 304 -448
WIRE 384 -448 336 -448
WIRE 480 -448 464 -448
WIRE -448 -432 -480 -432
WIRE -192 -432 -368 -432
WIRE -64 -432 -192 -432
WIRE -32 -432 -64 -432
WIRE 112 -432 112 -480
WIRE 112 -432 48 -432
WIRE 160 -416 128 -416
WIRE 336 -416 336 -448
WIRE 192 -352 192 -368
WIRE 128 -304 128 -416
WIRE 336 -304 336 -336
WIRE 336 -304 128 -304
WIRE 336 -288 336 -304
WIRE 192 -208 192 -224
WIRE 336 -192 336 -208
WIRE -96 -160 -96 -528
WIRE -32 -160 -96 -160
WIRE 64 -160 48 -160
WIRE 160 -160 64 -160
WIRE 64 -144 64 -160
WIRE 336 -128 304 -128
WIRE 384 -128 336 -128
WIRE 480 -128 464 -128
WIRE 160 -96 128 -96
WIRE 336 -96 336 -128
WIRE 64 -48 64 -64
WIRE 192 -32 192 -48
WIRE -64 16 -64 -432
WIRE -16 16 -64 16
WIRE 128 16 128 -96
WIRE 128 16 64 16
WIRE 336 16 336 -16
WIRE 336 16 128 16
WIRE -320 112 -480 112
WIRE -192 112 -240 112
WIRE -64 112 -192 112
WIRE -16 112 -64 112
WIRE 128 112 128 16
WIRE 128 112 64 112
WIRE -64 208 -64 112
WIRE -16 208 -64 208
WIRE 128 208 64 208
WIRE 208 208 208 192
WIRE 128 256 128 208
WIRE 176 256 128 256
WIRE 352 288 320 288
WIRE 384 288 352 288
WIRE 480 288 464 288
WIRE -96 304 -96 -160
WIRE -16 304 -96 304
WIRE 128 304 128 256
WIRE 128 304 64 304
WIRE 176 320 144 320
WIRE 352 320 352 288
WIRE -288 336 -288 320
WIRE -160 336 -160 320
WIRE 208 384 208 368
WIRE -288 432 -288 416
WIRE -160 432 -160 416
WIRE 144 432 144 320
WIRE 352 432 352 400
WIRE 352 432 144 432
WIRE 352 448 352 432
WIRE 352 544 352 528
FLAG -160 432 0
FLAG -160 320 +V
FLAG -288 432 0
FLAG -288 320 -V
FLAG 192 -352 +V
FLAG 192 -544 -V
FLAG 240 -528 0
FLAG 336 -192 0
FLAG 192 -32 +V
FLAG 192 -224 -V
FLAG 240 -208 0
FLAG 64 -48 0
FLAG 208 384 +V
FLAG 208 192 -V
FLAG 256 208 0
FLAG 352 544 0
FLAG -192 -528 Y
FLAG -192 -432 R-Y
FLAG -192 112 B-Y
FLAG 480 -448 R
FLAG 480 -128 G
FLAG 480 288 B
FLAG -480 -528 0
FLAG -480 -432 0
FLAG -480 112 0
SYMBOL voltage -160 320 R0
SYMATTR InstName V1
SYMATTR Value 5
SYMBOL voltage -288 320 R0
SYMATTR InstName V2
SYMATTR Value -5
SYMBOL opamps\\LT1399 192 -448 M180
SYMATTR InstName U1
SYMBOL res 320 -432 R0
SYMATTR InstName R1
SYMATTR Value 324
SYMBOL res 320 -304 R0
SYMATTR InstName R2
SYMATTR Value 107
SYMBOL opamps\\LT1399 192 -128 M180
SYMATTR InstName U2
SYMBOL res 320 -112 R0
SYMATTR InstName R3
SYMATTR Value 324
SYMBOL res 64 -544 R90
SYMATTR InstName R4
SYMATTR Value 1K
SYMBOL res 64 -448 R90
SYMATTR InstName R5
SYMATTR Value 1K
SYMBOL res 48 -160 R0
SYMATTR InstName R6
SYMATTR Value 1K
SYMBOL res 64 -176 R90
SYMATTR InstName R7
SYMATTR Value 205
SYMBOL res 80 0 R90
SYMATTR InstName R8
SYMATTR Value 316
SYMBOL res 80 96 R90
SYMATTR InstName R9
SYMATTR Value 845
SYMBOL opamps\\LT1399 208 288 M180
SYMATTR InstName U3
SYMBOL res 336 304 R0
SYMATTR InstName R10
SYMATTR Value 324
SYMBOL res 336 432 R0
SYMATTR InstName R11
SYMATTR Value 107
SYMBOL res 80 288 R90
SYMATTR InstName R12
SYMATTR Value 1K
SYMBOL res 80 192 R90
SYMATTR InstName R13
SYMATTR Value 1K
SYMBOL res 480 -144 R90
SYMATTR InstName R14
SYMATTR Value 75
SYMBOL res 480 -464 R90
SYMATTR InstName R15
SYMATTR Value 75
SYMBOL res 480 272 R90
SYMATTR InstName R16
SYMATTR Value 75
SYMBOL voltage -224 -528 R90
SYMATTR InstName V3
SYMATTR Value SINE(0 1 1Meg)
SYMBOL voltage -352 -432 R90
SYMATTR InstName V4
SYMATTR Value SINE(0 1 2Meg)
SYMBOL voltage -224 112 R90
SYMATTR InstName V5
SYMATTR Value SINE(0 1 3Meg)