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 96 96 16 96
WIRE 144 96 96 96
WIRE 224 96 144 96
WIRE 320 112 320 -32
WIRE 352 128 352 64
WIRE 144 144 144 96
WIRE 224 144 224 96
WIRE 272 144 224 144
WIRE 432 176 400 176
WIRE -144 192 -192 192
WIRE -32 192 -64 192
WIRE 16 192 16 176
WIRE 16 192 -32 192
WIRE 16 208 16 192
WIRE 272 208 224 208
WIRE -256 288 -256 176
WIRE -192 288 -192 192
WIRE -192 288 -256 288
WIRE 96 288 16 288
WIRE 144 288 144 224
WIRE 144 288 96 288
WIRE 224 288 224 208
WIRE 224 288 144 288
WIRE -256 304 -256 288
FLAG 432 176 AUS1
IOPIN 432 176 Out
FLAG -256 304 0
FLAG 96 96 DIFP
FLAG 96 288 DIFN
FLAG 160 -32 UDD
FLAG -32 192 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 voltage 144 128 R0
WINDOW 39 0 0 Left 2
WINDOW 3 30 88 Left 2
WINDOW 123 24 36 Left 2
SYMATTR Value 0
SYMATTR Value2 AC 1 0
SYMATTR InstName VDIF
SYMBOL res 0 80 R0
WINDOW 3 36 67 Left 2
SYMATTR InstName R1
SYMATTR Value 1 noiseless
SYMBOL res 0 192 R0
WINDOW 3 36 64 Left 2
SYMATTR InstName R2
SYMATTR Value 1 noiseless
SYMBOL opa3 320 176 R0
SYMATTR InstName OP1
SYMBOL voltage -48 192 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
TEXT 0 336 Left 2 !.include C:/Programs/LTspiceIV/lib/sub/AMSlev49.sub
TEXT -208 336 Left 2 !.ac dec 99 1 1G