Version 4
SHEET 1 984 716
WIRE 544 144 352 144
WIRE 352 240 352 144
WIRE 400 240 352 240
WIRE 544 256 544 144
WIRE 544 256 464 256
WIRE 608 256 544 256
WIRE -64 272 -112 272
WIRE 64 272 16 272
WIRE 400 272 64 272
WIRE -112 304 -112 272
WIRE 544 384 352 384
WIRE -112 416 -112 384
WIRE -112 416 -160 416
WIRE -112 432 -112 416
WIRE 64 432 64 272
WIRE 352 480 352 384
WIRE 400 480 352 480
WIRE 544 496 544 384
WIRE 544 496 464 496
WIRE 608 496 544 496
WIRE 400 512 352 512
WIRE -288 528 -288 496
WIRE -288 528 -352 528
WIRE -160 544 -160 416
WIRE -112 544 -112 512
WIRE -112 544 -160 544
WIRE 352 544 352 512
WIRE -352 560 -352 528
WIRE -288 560 -288 528
WIRE -112 560 -112 544
WIRE -112 656 -112 640
WIRE 64 656 64 512
WIRE 352 656 352 624
FLAG -112 656 0
FLAG -352 560 0
FLAG -288 416 Vcc
FLAG -288 640 Vee
FLAG 64 656 0
FLAG 432 224 Vcc
FLAG 432 288 Vee
FLAG 608 256 Out1
FLAG 432 464 Vcc
FLAG 432 528 Vee
FLAG 352 656 0
FLAG 608 496 Out2
SYMBOL voltage -112 544 R0
SYMATTR InstName V1
SYMATTR Value 1
SYMBOL voltage -288 544 R0
SYMATTR InstName V2
SYMATTR Value 15
SYMBOL voltage -288 400 R0
SYMATTR InstName V3
SYMATTR Value 15
SYMBOL res 32 256 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 122k
SYMBOL res 80 528 R180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R2
SYMATTR Value 128k
SYMBOL res -128 288 R0
SYMATTR InstName R3
SYMATTR Value 6k
SYMBOL ind -128 416 R0
SYMATTR InstName L1
SYMATTR Value 5
SYMBOL Opamps/opamp2 432 192 R0
SYMATTR InstName U1
SYMATTR Value OPA207
SYMBOL voltage 352 528 R0
SYMATTR InstName V4
SYMATTR Value 1
SYMBOL Opamps/opamp2 432 432 R0
SYMATTR InstName U2
SYMATTR Value OPA207
TEXT -504 96 Left 2 !.temp 25
TEXT -56 32 Left 2 !.include OPA207.lib
TEXT -56 64 Left 2 !.include OPA1692.lib
TEXT -504 64 Left 2 !.noise V(Out2) V4 oct 100 10 12k
TEXT -504 32 Left 2 ;.noise V(Out1) V1 oct 100 10 12k