Version 4
SHEET 1 880 680
WIRE 144 112 144 80
WIRE 368 160 336 160
WIRE -32 192 -256 192
WIRE -256 208 -256 192
WIRE -32 224 -32 192
WIRE -16 224 -32 224
WIRE -496 240 -496 224
WIRE -384 240 -384 224
WIRE 384 240 336 240
WIRE -16 256 -32 256
WIRE 368 288 336 288
WIRE -256 304 -256 288
WIRE -32 304 -32 256
WIRE -32 304 -256 304
WIRE -256 320 -256 304
WIRE -496 336 -496 320
WIRE -384 336 -384 320
WIRE 80 432 80 400
WIRE 144 432 144 400
FLAG -256 320 0
FLAG -496 336 0
FLAG -384 336 0
FLAG 384 240 OUT
FLAG 80 432 0
FLAG -496 224 +V
FLAG -384 224 -V
FLAG 144 80 +V
FLAG 144 432 -V
SYMBOL LT1990 160 240 R0
SYMATTR InstName U1
SYMBOL voltage -256 192 R0
WINDOW 123 24 132 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V3
SYMATTR Value SINE(0 1 10K)
SYMBOL voltage -496 224 R0
SYMATTR InstName V1
SYMATTR Value 5
SYMBOL voltage -384 224 R0
SYMATTR InstName V2
SYMATTR Value -5
TEXT 368 352 Left 2 !.tran 1m