* SPICE netlist
V1 0 N011 1.5
R2 N009 N008 100
V2 N010 0 12
XU2 0 N008 N010 0 N009 ADA4625-1 ;pnba In+)In-)V+)V-)OUT
V3 N004 0 12
D1 N003 0 L1C1-RED1000000000
D2 N002 0 L1C1-GRN1000000000
D3 N001 0 L1C1-BLU1000000000
R1 N008 N011 100
XU1 N009 N005 N004 0 N001 ADA4625-1 ;pnba In+)In-)V+)V-)OUT
XU3 N009 N006 N004 0 N002 ADA4625-1 ;pnba In+)In-)V+)V-)OUT
XU4 N009 N007 N004 0 N003 ADA4625-1 ;pnba In+)In-)V+)V-)OUT
R6 N001 N005 50
R7 N002 N006 50
R8 N003 N007 50
R9 N007 0 100
R10 N006 0 100
R11 N005 0 100
.dc V1 1 2 0.1

* LTspice schematic (.asc)
Version 4
SHEET 1 1344 992
WIRE 672 -496 -240 -496
WIRE 528 -448 64 -448
WIRE -240 -400 -240 -496
WIRE -128 -400 -240 -400
WIRE 64 -400 64 -448
WIRE 64 -400 -16 -400
WIRE 240 -400 160 -400
WIRE 400 -400 240 -400
WIRE -240 -368 -240 -400
WIRE -16 -368 -16 -400
WIRE 160 -368 160 -400
WIRE 32 -240 -192 -240
WIRE 208 -240 32 -240
WIRE -128 -208 -128 -400
WIRE 64 -208 64 -400
WIRE 240 -208 240 -400
WIRE -192 -176 -192 -240
WIRE -192 -176 -352 -176
WIRE -160 -176 -192 -176
WIRE 32 -176 32 -240
WIRE 208 -176 208 -240
WIRE -240 -112 -240 -288
WIRE -144 -112 -144 -144
WIRE -144 -112 -240 -112
WIRE -16 -112 -16 -288
WIRE 48 -112 48 -144
WIRE 48 -112 -16 -112
WIRE 160 -112 160 -288
WIRE 224 -112 224 -144
WIRE 224 -112 160 -112
WIRE -240 -96 -240 -112
WIRE -16 -96 -16 -112
WIRE 160 -96 160 -112
WIRE -448 112 -496 112
WIRE -352 112 -448 112
WIRE -208 112 -272 112
WIRE 528 112 528 -448
WIRE 400 144 400 -400
WIRE 672 144 672 -496
WIRE -336 160 -384 160
WIRE -384 192 -384 160
WIRE -640 208 -672 208
WIRE -608 208 -640 208
WIRE -448 208 -448 112
WIRE -448 208 -528 208
WIRE -416 208 -448 208
WIRE -208 224 -208 112
WIRE -208 224 -352 224
WIRE -112 224 -112 -144
WIRE -112 224 -208 224
WIRE 80 224 80 -144
WIRE 80 224 -112 224
WIRE 256 224 256 -144
WIRE 256 224 80 224
WIRE -416 240 -496 240
WIRE 400 256 400 208
WIRE 528 256 528 176
WIRE 528 256 400 256
WIRE 672 256 672 208
WIRE 672 256 528 256
WIRE -640 272 -640 208
WIRE -384 272 -384 256
WIRE -384 272 -432 272
WIRE -496 352 -496 240
WIRE -432 352 -432 272
WIRE -432 352 -496 352
WIRE -336 352 -336 160
WIRE -640 432 -640 352
WIRE -432 464 -432 352
WIRE -384 464 -432 464
WIRE -336 464 -336 432
WIRE -336 464 -384 464
WIRE -384 496 -384 464
FLAG -640 432 0
FLAG -384 496 0
FLAG 528 256 0
FLAG -96 -176 0
FLAG 272 -176 0
FLAG 96 -176 0
FLAG -432 -176 0
FLAG 160 -16 0
FLAG -16 -16 0
FLAG -240 -16 0
SYMBOL voltage -640 368 R180
SYMATTR InstName V1
SYMATTR Value 1.5
SYMBOL res -256 96 R90
SYMATTR InstName R2
SYMATTR Value 100
SYMBOL voltage -336 336 R0
SYMATTR InstName V2
SYMATTR Value 12
SYMBOL OpAmps\\ADA4625 -384 160 R0
SYMATTR InstName U2
SYMBOL voltage -336 -176 R90
SYMATTR InstName V3
SYMATTR Value 12
SYMBOL LED 384 144 R0
SYMATTR Value L1C1-RED1000000000
SYMATTR InstName D1
SYMBOL LED 512 112 R0
SYMATTR Value L1C1-GRN1000000000
SYMATTR InstName D2
SYMBOL LED 656 144 R0
SYMATTR Value L1C1-BLU1000000000
SYMATTR InstName D3
SYMBOL res -512 192 R90
SYMATTR InstName R1
SYMATTR Value 100
SYMBOL OpAmps\\ADA4625 -192 -176 R270
SYMATTR InstName U1
SYMBOL OpAmps\\ADA4625 0 -176 R270
SYMATTR InstName U3
SYMBOL OpAmps\\ADA4625 176 -176 R270
SYMATTR InstName U4
SYMBOL res -256 -384 R0
SYMATTR InstName R6
SYMATTR Value 50
SYMBOL res -32 -384 R0
SYMATTR InstName R7
SYMATTR Value 50
SYMBOL res 144 -384 R0
SYMATTR InstName R8
SYMATTR Value 50
SYMBOL res 144 -112 R0
SYMATTR InstName R9
SYMATTR Value 100
SYMBOL res -32 -112 R0
SYMATTR InstName R10
SYMATTR Value 100
SYMBOL res -256 -112 R0
SYMATTR InstName R11
SYMATTR Value 100