Version 4
SHEET 1 880 680
WIRE -256 64 -272 64
WIRE -192 64 -256 64
WIRE -64 64 -112 64
WIRE -256 176 -256 64
WIRE -240 176 -256 176
WIRE -544 192 -544 176
WIRE -64 192 -64 64
WIRE -64 192 -176 192
WIRE -544 208 -544 192
WIRE -240 208 -256 208
WIRE -352 224 -416 224
WIRE -352 304 -352 224
WIRE -256 304 -256 208
WIRE -256 304 -272 304
WIRE -64 304 -64 272
WIRE -64 304 -256 304
FLAG -544 192 0
FLAG -208 160 +9v
FLAG -544 96 +9v
FLAG -208 224 -9v
FLAG -544 288 -9v
FLAG -416 384 0
FLAG -64 384 0
FLAG -352 64 0
SYMBOL voltage -544 80 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 9
SYMBOL voltage -544 192 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value 9
SYMBOL Opamps\\LT1114 -208 128 R0
SYMATTR InstName U1
SYMBOL res -80 176 R0
SYMATTR InstName R2
SYMATTR Value 10k
SYMBOL res -96 48 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 10k
SYMBOL res -256 288 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R5
SYMATTR Value 10k
SYMBOL res -256 48 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R6
SYMATTR Value 10k
SYMBOL voltage -416 288 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V3
SYMATTR Value 5
SYMBOL res -80 288 R0
SYMATTR InstName R7
SYMATTR Value 5000
SYMBOL voltage -416 208 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V4
SYMATTR Value PULSE(0 300m 0 0.1 1n 1n)
TEXT -488 168 Left 2 !.tran 0 100m 0 10n