Version 4
SHEET 1 880 680
WIRE 272 -48 -64 -48
WIRE 304 -48 272 -48
WIRE 304 -16 304 -48
WIRE 272 96 272 -48
WIRE 304 96 304 64
WIRE 128 112 32 112
WIRE 176 112 128 112
WIRE 224 112 176 112
WIRE 128 128 128 112
WIRE 384 144 352 144
WIRE 400 144 384 144
WIRE 416 144 400 144
WIRE 528 144 496 144
WIRE 560 144 528 144
WIRE -64 160 -64 -48
WIRE 32 160 32 112
WIRE 224 176 208 176
WIRE 528 192 528 144
WIRE 128 224 128 208
WIRE 160 224 128 224
WIRE 208 224 208 176
WIRE 208 224 160 224
WIRE 208 240 208 224
WIRE 288 240 208 240
WIRE 304 240 288 240
WIRE 384 240 384 144
WIRE -64 288 -64 240
WIRE 32 288 32 240
WIRE 32 288 -64 288
WIRE 160 288 32 288
WIRE 528 288 528 256
WIRE 528 288 160 288
WIRE 32 304 32 288
FLAG 32 304 0
FLAG 560 144 Uaus
IOPIN 560 144 Out
FLAG 176 112 UA
FLAG 288 240 Ux
FLAG 400 144 XX
SYMBOL cap 512 192 R0
SYMATTR InstName C1
SYMATTR Value 100p
SYMBOL res 512 128 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R1
SYMATTR Value 1MEG
SYMBOL voltage 32 144 R0
WINDOW 3 -126 188 Left 0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR Value 2.5
SYMATTR InstName V1
SYMBOL voltage -64 144 R0
SYMATTR InstName V2
SYMATTR Value 5
SYMBOL opa3 272 144 R0
SYMATTR InstName X1
SYMBOL current 304 -16 R0
SYMATTR InstName I1
SYMATTR Value 10µ
SYMBOL cap 144 224 R0
SYMATTR InstName C2
SYMATTR Value 100p
SYMBOL res 400 224 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R2
SYMATTR Value 1MEG
SYMBOL voltage 128 112 R0
WINDOW 3 33 34 Left 0
WINDOW 123 37 55 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V3
SYMATTR Value 0
SYMATTR Value2 AC 1
TEXT 240 328 Left 0 !.include C:/Programs/LTspiceIV/lib/sub/GFlev8.sub
TEXT -24 48 Left 0 !;tran 2m
TEXT -24 8 Left 0 !.ac dec 9 1 100MEG