Version 4
SHEET 1 880 680
WIRE 96 48 -256 48
WIRE 400 48 352 48
WIRE 96 64 96 48
WIRE 272 64 272 48
WIRE 352 64 352 48
WIRE -496 144 -496 128
WIRE -384 144 -384 128
WIRE -256 144 -256 48
WIRE -496 240 -496 224
WIRE -384 240 -384 224
WIRE -256 336 -256 224
WIRE 96 336 96 320
WIRE 96 336 -256 336
WIRE 272 336 272 320
WIRE 352 352 352 320
FLAG 352 352 0
FLAG 272 48 +V
FLAG 272 336 -V
FLAG -496 128 +V
FLAG -496 240 0
FLAG -384 240 0
FLAG -384 128 -V
FLAG 400 48 OUT
SYMBOL opamps\\LT1995 272 192 R0
SYMATTR InstName U1
SYMBOL voltage -496 128 R0
SYMATTR InstName V1
SYMATTR Value +15
SYMBOL voltage -384 128 R0
SYMATTR InstName V2
SYMATTR Value -15
SYMBOL voltage -256 128 R0
WINDOW 0 14 8 Left 2
WINDOW 3 15 104 Left 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V3
SYMATTR Value PULSE(-1 1 0 1n 1n .5u 1u)
TEXT 400 296 Left 2 !.tran 3u