Version 4
SHEET 1 880 868
WIRE 128 -80 128 -96
WIRE -208 -64 -480 -64
WIRE 96 -64 -48 -64
WIRE 192 -48 160 -48
WIRE 256 -48 192 -48
WIRE 368 -48 336 -48
WIRE 400 -48 368 -48
WIRE 512 -48 480 -48
WIRE 96 -32 48 -32
WIRE 128 0 128 -16
WIRE 48 80 48 -32
WIRE 48 80 -16 80
WIRE 80 80 48 80
WIRE 192 80 192 -48
WIRE 192 80 160 80
WIRE -16 112 -16 80
WIRE 432 112 432 96
WIRE 368 128 368 -48
WIRE 400 128 368 128
WIRE 512 144 512 -48
WIRE 512 144 464 144
WIRE 672 144 512 144
WIRE 400 160 368 160
WIRE 432 192 432 176
WIRE -16 208 -16 192
WIRE 48 208 -16 208
WIRE 80 208 48 208
WIRE 192 208 160 208
WIRE 128 320 128 304
WIRE 48 336 48 208
WIRE 96 336 48 336
WIRE 192 352 192 208
WIRE 192 352 160 352
WIRE 256 352 192 352
WIRE 368 352 368 160
WIRE 368 352 336 352
WIRE 400 352 368 352
WIRE 512 352 480 352
WIRE -208 368 -336 368
WIRE 96 368 -48 368
WIRE 128 400 128 384
WIRE 512 416 512 352
WIRE -336 480 -336 368
WIRE -480 624 -480 -64
WIRE -336 624 -336 560
WIRE 288 704 288 672
WIRE 384 704 384 672
WIRE 288 816 288 784
WIRE 336 816 288 816
WIRE 384 816 384 784
WIRE 384 816 336 816
WIRE 336 848 336 816
FLAG 128 0 V+
FLAG 128 -96 V-
FLAG 128 304 V+
FLAG 432 96 V+
FLAG 128 400 V-
FLAG 432 192 V-
FLAG 512 416 0
FLAG 672 144 Out
IOPIN 672 144 Out
FLAG -48 -64 In-
IOPIN -48 -64 In
FLAG -48 368 In+
IOPIN -48 368 In
FLAG 336 848 0
FLAG 384 672 V-
FLAG 288 672 V+
FLAG -336 624 0
FLAG -480 624 0
FLAG -208 -64 In-
IOPIN -208 -64 Out
FLAG -208 368 In+
IOPIN -208 368 Out
SYMBOL Opamps\\UniversalOpamp2 128 -48 M180
SYMATTR InstName U1
SYMATTR Value2 Avol=1Meg GBW=1Meg Slew=12Meg
SYMATTR SpiceLine2 en=7.5n enk=7 in=124f ink=7 Rin=1000Meg
SYMBOL Opamps\\UniversalOpamp2 128 352 R0
SYMATTR InstName U2
SYMATTR Value2 Avol=1Meg GBW=1Meg Slew=12Meg
SYMATTR SpiceLine2 en=7.5n enk=7 in=124f ink=7 Rin=1000Meg
SYMBOL Opamps\\UniversalOpamp2 432 144 R0
SYMATTR InstName U3
SYMATTR Value2 Avol=1Meg GBW=1Meg Slew=12Meg
SYMATTR SpiceLine2 en=0 enk=0 in=0 ink=0 Rin=1000Meg
SYMBOL res 496 -64 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 -32 58 VBottom 0
SYMATTR InstName R6
SYMATTR Value 10k noiseless
SYMBOL res 496 336 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 41 71 VTop 0
SYMATTR InstName R8
SYMATTR Value 10k noiseless
SYMBOL res 352 -64 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 38 73 VTop 0
SYMATTR InstName R5
SYMATTR Value 10k noiseless
SYMBOL res 352 336 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 -54 70 VTop 0
SYMATTR InstName R7
SYMATTR Value 10k noiseless
SYMBOL res 176 64 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R1
SYMATTR Value 24.7k noiseless
SYMBOL res 64 224 R270
WINDOW 0 -32 59 VTop 0
WINDOW 3 62 54 VBottom 0
SYMATTR InstName R2
SYMATTR Value 24.7k noiseless
SYMBOL res 0 96 M0
SYMATTR InstName RG
SYMATTR Value 49.9
SYMBOL voltage 288 688 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value 15V
SYMBOL voltage 384 800 M180
WINDOW 0 24 104 Left 0
WINDOW 3 24 16 Left 0
SYMATTR InstName V2
SYMATTR Value 15V
SYMBOL voltage -336 464 R0
WINDOW 123 24 132 Left 0
WINDOW 39 0 0 Left 0
SYMATTR Value2 AC 1
SYMATTR InstName VS
SYMATTR Value 0
TEXT 304 -176 Left 0 ;LT1167
TEXT -832 -208 Left 0 !.noise V(Out) VS dec 1000 1 100000
TEXT -496 704 Left 0 ;G=1  -- en=46.9n enk=10 in=124f ink=10 Rin=1000Meg
TEXT -496 744 Left 0 ;G=1000  --  en=7.5n enk=7 in=124f ink=7 Rin=1000Meg
RECTANGLE Normal 640 480 16 -160