Version 4
SHEET 1 880 680
WIRE 240 160 64 160
WIRE 160 240 160 224
WIRE 64 256 64 160
WIRE 128 256 64 256
WIRE 240 272 240 160
WIRE 240 272 192 272
WIRE 336 272 240 272
WIRE -112 288 -304 288
WIRE 128 288 -32 288
WIRE -304 304 -304 288
WIRE 160 320 160 304
WIRE 80 400 80 368
WIRE 304 400 304 368
WIRE -304 416 -304 384
WIRE 80 512 80 480
WIRE 304 512 304 480
FLAG 80 512 0
FLAG 304 512 0
FLAG -304 416 0
FLAG 160 224 vcc
FLAG 160 320 vss
FLAG 80 368 vcc
FLAG 304 368 vss
FLAG 336 272 out
SYMBOL voltage 80 384 R0
SYMATTR InstName V1
SYMATTR Value 12
SYMBOL voltage 304 384 R0
SYMATTR InstName V2
SYMATTR Value -12
SYMBOL voltage -304 288 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V3
SYMATTR Value PULSE(0 1 0 10n 10n 10u 20u)
SYMBOL res -128 304 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 0 56 VBottom 0
SYMATTR InstName R1
SYMATTR Value 100
SYMBOL Robertugo\\OPAMP5 160 208 R0
SYMATTR InstName U1
SYMATTR SpiceModel AD8671
TEXT -336 240 Left 0 !.tran 0 100u 0
TEXT -816 304 Left 0 ;Use the "Alternate" solver for the AD8671.\n \n If you still have problems then also set \nmethod "Gear" instead of "Modified Trap".\n \nControl Panel:  SPICE Solver:Alternate\nControl Panel:  SPICE Integration Method: Gear
TEXT -336 200 Left 0 !.options method=GEAR