Version 4
SHEET 1 1276 680
WIRE 848 192 640 192
WIRE 992 208 912 208
WIRE 848 224 752 224
WIRE 640 288 640 192
WIRE 752 336 752 224
WIRE 848 336 752 336
WIRE 992 336 992 208
WIRE 992 336 928 336
WIRE 752 400 752 336
WIRE 992 400 992 336
WIRE 640 576 640 368
WIRE 752 576 752 480
WIRE 752 576 640 576
WIRE 992 576 992 480
WIRE 992 576 752 576
WIRE 752 608 752 576
FLAG 752 608 0
FLAG 992 208 A
SYMBOL Opamps\\opamp 880 272 M180
SYMATTR InstName U1
SYMATTR SpiceLine Aol=1000Meg
SYMATTR SpiceLine2 GBW=100Meg
SYMBOL voltage 640 272 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value 1
SYMBOL res 736 384 R0
SYMATTR InstName R1
SYMATTR Value 5k
SYMBOL res 944 320 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 40k
SYMBOL res 976 384 R0
SYMATTR InstName R3
SYMATTR Value 20k
TEXT 1104 504 Left 2 !.lib opamp.sub
TEXT 1104 568 Left 2 !.tran 1000