Version 4
SHEET 1 880 680
WIRE 224 0 144 0
WIRE 368 0 304 0
WIRE 448 0 368 0
WIRE 592 0 528 0
WIRE 288 112 288 96
WIRE 32 128 -64 128
WIRE 144 128 144 0
WIRE 144 128 112 128
WIRE 256 128 144 128
WIRE -64 144 -64 128
WIRE 368 144 368 0
WIRE 368 144 320 144
WIRE 448 144 368 144
WIRE 592 144 592 0
WIRE 592 144 528 144
WIRE 720 144 592 144
WIRE 256 160 224 160
WIRE 224 192 224 160
WIRE 288 192 288 176
WIRE -64 256 -64 224
WIRE -64 352 -64 336
WIRE 48 352 48 336
WIRE -64 448 -64 432
WIRE 48 448 48 432
FLAG -64 256 0
FLAG 224 192 0
FLAG -64 128 in
FLAG 720 144 out
FLAG 288 96 +V
FLAG 288 192 -V
FLAG -64 448 0
FLAG 48 448 0
FLAG -64 336 +V
FLAG 48 336 -V
FLAG 144 128 P1
FLAG 368 144 P3
FLAG 368 0 P2
SYMBOL Misc\\EuropeanResistor 16 144 R270
WINDOW 0 27 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName R1
SYMATTR Value 1k
SYMBOL Misc\\EuropeanResistor 208 16 R270
WINDOW 0 27 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName R2
SYMATTR Value 10k ac=10k
SYMBOL voltage -64 128 R0
WINDOW 123 24 124 Left 2
WINDOW 39 0 0 Left 2
SYMATTR Value2 AC 1
SYMATTR InstName V1
SYMATTR Value PWL(0 0 1m 1 1.01m 1 1.02m 2 2.01m 2 2.02m 3 3.01m 4)
SYMBOL Opamps\\UniversalOpamp2 288 144 R0
WINDOW 38 26 33 Left 2
SYMATTR SpiceModel level.1
SYMATTR InstName U1
SYMATTR Value2 Avol=100k GBW=1Meg Slew=1Meg
SYMATTR SpiceLine2 en=20n enk=0 in=0 ink=0 Rin=500Meg
SYMBOL voltage -64 336 R0
SYMATTR InstName V2
SYMATTR Value 15
SYMBOL voltage 48 336 R0
SYMATTR InstName V3
SYMATTR Value -15
SYMBOL Misc\\EuropeanResistor 432 16 R270
WINDOW 0 27 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName R3
SYMATTR Value 10k ac=10k
SYMBOL Misc\\EuropeanResistor 432 160 R270
WINDOW 0 27 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName R4
SYMATTR Value 10k ac=10k
TEXT -80 -224 Left 2 ;.ac dec 1000 1 10Meg
TEXT -80 -184 Left 2 ;.noise V(out) V1 dec 1000 1 10Meg
TEXT -40 -440 Left 2 ;https://www.mikrocontroller.net/topic/444158
TEXT -72 -120 Left 2 !.tran 10m