Version 4
SHEET 1 956 680
WIRE 160 -32 -256 -32
WIRE 320 -32 160 -32
WIRE 352 -32 320 -32
WIRE 352 -16 352 -32
WIRE -256 96 -256 -32
WIRE 320 112 320 -32
WIRE 352 128 352 64
WIRE -144 144 -192 144
WIRE -32 144 -64 144
WIRE 16 144 -32 144
WIRE 272 144 16 144
WIRE 16 160 16 144
WIRE 416 176 400 176
WIRE 432 176 416 176
WIRE 272 208 224 208
WIRE 16 256 16 240
WIRE 96 256 16 256
WIRE 224 256 224 208
WIRE 224 256 176 256
WIRE 288 256 224 256
WIRE 416 256 416 176
WIRE 416 256 368 256
WIRE -256 288 -256 176
WIRE -192 288 -192 144
WIRE -192 288 -256 288
WIRE -256 304 -256 288
FLAG 432 176 AUS1
IOPIN 432 176 Out
FLAG -256 304 0
FLAG 160 -32 UDD
FLAG -32 144 UCOM
SYMBOL current 352 -16 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName I1
SYMATTR Value 10µ
SYMBOL opa3 320 176 R0
SYMATTR InstName OP1
SYMBOL voltage -48 144 R90
WINDOW 0 -32 56 VBottom 2
WINDOW 3 31 30 VTop 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName VCOM
SYMATTR Value 1.5
SYMBOL voltage -256 80 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName VDD
SYMATTR Value 3
SYMBOL res 384 240 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 1meg noiseless
SYMBOL res 192 240 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 10k noiseless
SYMBOL voltage 16 256 R180
WINDOW 123 24 76 Left 2
WINDOW 39 0 0 Left 2
SYMATTR Value2 AC 1
SYMATTR InstName VIN
SYMATTR Value 0
TEXT 32 336 Left 2 !.include C:/Programs/LTspiceIV/lib/sub/AMSlev49.sub
TEXT -272 336 Left 2 !.noise V(AUS1) VIN dec 99 1 1G