Version 4
SHEET 1 880 680
WIRE 160 -32 -240 -32
WIRE 320 -32 160 -32
WIRE 48 96 -32 96
WIRE 96 96 48 96
WIRE 192 96 96 96
WIRE 320 128 320 -32
WIRE 96 144 96 96
WIRE 192 144 192 96
WIRE 272 144 192 144
WIRE -240 160 -240 -32
WIRE 496 176 400 176
WIRE -64 192 -128 192
WIRE -32 192 -32 176
WIRE -32 192 -64 192
WIRE -128 208 -128 192
WIRE -32 208 -32 192
WIRE 272 208 192 208
WIRE 352 240 352 224
WIRE 48 288 -32 288
WIRE 96 288 96 224
WIRE 96 288 48 288
WIRE 192 288 192 208
WIRE 192 288 96 288
WIRE -240 304 -240 240
WIRE -128 304 -128 288
WIRE -128 304 -240 304
WIRE -240 320 -240 304
WIRE 352 336 352 320
FLAG 496 176 AUS
IOPIN 496 176 Out
FLAG -240 320 0
FLAG -64 192 UCOM
FLAG 48 96 DIFP
FLAG 48 288 DIFN
FLAG 160 -32 UDD
FLAG 352 336 0
SYMBOL current 352 240 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName IB
SYMATTR Value 10µ
SYMBOL voltage 96 128 R0
WINDOW 39 0 0 Left 2
WINDOW 123 24 118 Left 2
WINDOW 3 24 34 Left 2
SYMATTR Value2 AC 1 0
SYMATTR Value 0
SYMATTR InstName VDIF
SYMBOL res -48 80 R0
SYMATTR InstName R1
SYMATTR Value 1k
SYMBOL res -48 192 R0
SYMATTR InstName R2
SYMATTR Value 1k
SYMBOL OpaCtr 320 176 R0
SYMATTR InstName X1
SYMBOL voltage -128 192 R0
SYMATTR InstName V1
SYMATTR Value 2.5
SYMBOL voltage -240 144 R0
SYMATTR InstName VDD
SYMATTR Value 5
TEXT -176 0 Left 2 !.include C:/Programs/LTspiceIV/lib/sub/GFlev8.sub
TEXT -176 32 Left 2 !;dc VDIF -50µ 50µ 10µ
TEXT -176 64 Left 2 !.ac dec 9 10 1g