* SPICE netlist
V1 +V 0 5
V2 -V 0 -5
XU1 0 N002 +V -V N003 LT1395 ;pnba In+)In-)V+)V-)OUT
XU2 0 N004 +V -V Y LT1395 ;pnba In+)In-)V+)V-)OUT
XU3 B N005 +V -V B-Y LT1395 ;pnba In+)In-)V+)V-)OUT
XU4 R N001 +V -V R-Y LT1395 ;pnba In+)In-)V+)V-)OUT
R1 Y N004 255
R2 N004 N003 127
R3 N003 N002 255
R4 N002 B 2320
R5 N002 G 432
R6 N002 R 845
R7 B 0 76.8
R8 G 0 90.9
R9 R 0 82.5
R10 N005 B-Y 255
R11 R-Y N001 255
R12 N001 Y 255
R13 Y N005 255
V3 R 0 SINE(0 .5 1Meg) Rser=75
V4 G 0 SINE(0 .5 2Meg) Rser=75
V5 B 0 SINE(0 .5 3Meg) Rser=75
.tran 3u

* LTspice schematic (.asc)
Version 4
SHEET 1 896 704
WIRE 320 -336 320 -352
WIRE 288 -320 -128 -320
WIRE 400 -304 352 -304
WIRE 448 -304 400 -304
WIRE 288 -288 240 -288
WIRE 400 -288 400 -304
WIRE 320 -256 320 -272
WIRE -400 -208 -448 -208
WIRE -176 -208 -320 -208
WIRE -128 -208 -128 -320
WIRE -128 -208 -176 -208
WIRE -80 -208 -128 -208
WIRE 16 -208 0 -208
WIRE -128 -192 -128 -208
WIRE 240 -192 240 -288
WIRE 400 -192 400 -208
WIRE 400 -192 240 -192
WIRE 400 -176 400 -192
WIRE -128 -96 -128 -112
WIRE -304 -64 -448 -64
WIRE -176 -64 -224 -64
WIRE -128 -64 -176 -64
WIRE -80 -64 -128 -64
WIRE 16 -64 16 -208
WIRE 16 -64 0 -64
WIRE 32 -64 16 -64
WIRE 128 -64 112 -64
WIRE 144 -64 128 -64
WIRE 240 -64 224 -64
WIRE 304 -64 240 -64
WIRE 400 -64 400 -96
WIRE 400 -64 384 -64
WIRE -128 -48 -128 -64
WIRE 304 32 304 16
WIRE -128 48 -128 32
WIRE 240 48 240 -64
WIRE 272 48 240 48
WIRE 80 64 80 48
WIRE 400 64 400 -64
WIRE 400 64 336 64
WIRE 448 64 400 64
WIRE -400 80 -448 80
WIRE -176 80 -320 80
WIRE -160 80 -176 80
WIRE -128 80 -160 80
WIRE -80 80 -128 80
WIRE 16 80 16 -64
WIRE 16 80 0 80
WIRE 48 80 16 80
WIRE 272 80 240 80
WIRE -128 96 -128 80
WIRE 128 96 128 -64
WIRE 128 96 112 96
WIRE 400 96 400 64
WIRE 48 112 32 112
WIRE 304 112 304 96
WIRE 80 144 80 128
WIRE -128 192 -128 176
WIRE 400 192 400 176
WIRE 400 192 240 192
WIRE 400 208 400 192
WIRE -416 240 -416 224
WIRE -288 240 -288 224
WIRE 304 272 304 256
WIRE 240 288 240 192
WIRE 272 288 240 288
WIRE 400 304 400 288
WIRE 400 304 336 304
WIRE 448 304 400 304
WIRE -160 320 -160 80
WIRE 272 320 -160 320
WIRE -416 336 -416 320
WIRE -288 336 -288 320
WIRE 304 352 304 336
FLAG -288 336 0
FLAG 80 48 +V
FLAG -288 224 +V
FLAG 80 144 -V
FLAG -416 336 0
FLAG -416 224 -V
FLAG 304 16 +V
FLAG 304 112 -V
FLAG 304 256 +V
FLAG 304 352 -V
FLAG 320 -256 +V
FLAG 320 -352 -V
FLAG 240 80 0
FLAG -128 192 0
FLAG -128 48 0
FLAG -128 -96 0
FLAG -448 80 0
FLAG -448 -64 0
FLAG -448 -208 0
FLAG -176 -208 R
FLAG -176 -64 G
FLAG -176 80 B
FLAG 448 -304 R-Y
FLAG 448 64 Y
FLAG 448 304 B-Y
FLAG 32 112 0
SYMBOL voltage -288 224 R0
SYMATTR InstName V1
SYMATTR Value 5
SYMBOL voltage -416 224 R0
SYMATTR InstName V2
SYMATTR Value -5
SYMBOL opamps\\LT1397 80 32 R0
SYMATTR InstName U1
SYMBOL opamps\\LT1397 304 0 R0
SYMATTR InstName U2
SYMBOL opamps\\LT1397 304 240 R0
SYMATTR InstName U3
SYMBOL opamps\\LT1397 320 -240 M180
SYMATTR InstName U4
SYMBOL res 400 -80 R90
SYMATTR InstName R1
SYMATTR Value 255
SYMBOL res 240 -80 R90
SYMATTR InstName R2
SYMATTR Value 127
SYMBOL res 128 -80 R90
SYMATTR InstName R3
SYMATTR Value 255
SYMBOL res 16 64 R90
SYMATTR InstName R4
SYMATTR Value 2320
SYMBOL res 16 -80 R90
SYMATTR InstName R5
SYMATTR Value 432
SYMBOL res 16 -224 R90
SYMATTR InstName R6
SYMATTR Value 845
SYMBOL res -144 80 R0
SYMATTR InstName R7
SYMATTR Value 76.8
SYMBOL res -144 -64 R0
SYMATTR InstName R8
SYMATTR Value 90.9
SYMBOL res -144 -208 R0
SYMATTR InstName R9
SYMATTR Value 82.5
SYMBOL res 384 192 R0
SYMATTR InstName R10
SYMATTR Value 255
SYMBOL res 384 -304 R0
SYMATTR InstName R11
SYMATTR Value 255
SYMBOL res 384 -192 R0
SYMATTR InstName R12
SYMATTR Value 255
SYMBOL res 384 80 R0
SYMATTR InstName R13
SYMATTR Value 255
SYMBOL voltage -304 -208 R90
SYMATTR InstName V3
SYMATTR Value SINE(0 .5 1Meg)
SYMATTR SpiceLine Rser=75
SYMBOL voltage -208 -64 R90
SYMATTR InstName V4
SYMATTR Value SINE(0 .5 2Meg)
SYMATTR SpiceLine Rser=75
SYMBOL voltage -304 80 R90
SYMATTR InstName V5
SYMATTR Value SINE(0 .5 3Meg)
SYMATTR SpiceLine Rser=75