Version 4
SHEET 1 880 680
WIRE 48 -80 32 -80
WIRE 144 -80 128 -80
WIRE 160 -80 144 -80
WIRE 304 -80 240 -80
WIRE 32 -48 32 -80
WIRE 192 16 192 0
WIRE 144 32 144 -80
WIRE 160 32 144 32
WIRE 32 48 32 32
WIRE 256 48 224 48
WIRE 160 64 144 64
WIRE 368 80 368 64
WIRE 192 96 192 80
WIRE 144 176 144 64
WIRE 160 176 144 176
WIRE 256 176 256 48
WIRE 256 176 240 176
WIRE 368 176 368 160
WIRE 368 176 336 176
WIRE 336 192 336 176
WIRE 368 192 368 176
WIRE 144 240 144 176
WIRE 160 240 144 240
WIRE 256 240 240 240
WIRE 368 288 368 272
WIRE 192 320 192 304
WIRE 144 336 144 240
WIRE 160 336 144 336
WIRE 256 352 256 240
WIRE 256 352 224 352
WIRE 304 352 304 -80
WIRE 304 352 256 352
WIRE 160 368 144 368
WIRE 144 400 144 368
WIRE 192 400 192 384
FLAG 144 400 0
FLAG 32 48 0
FLAG 336 192 0
FLAG 368 64 V+
FLAG 192 96 V+
FLAG 192 304 V+
FLAG 368 288 V-
FLAG 192 0 V-
FLAG 192 400 V-
SYMBOL Opamps\\LT1357 192 288 R0
SYMATTR InstName U1
SYMBOL Opamps\\LT1357 192 112 M180
SYMATTR InstName U2
SYMBOL res 32 -64 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 0 56 VBottom 0
SYMATTR InstName R1
SYMATTR Value 1k
SYMBOL res 144 -64 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 0 56 VBottom 0
SYMATTR InstName R2
SYMATTR Value 1k
SYMBOL res 144 192 R270
WINDOW 0 34 32 VTop 0
WINDOW 3 56 82 VBottom 0
SYMATTR InstName R3
SYMATTR Value 1k
SYMBOL res 144 256 R270
WINDOW 0 35 32 VTop 0
WINDOW 3 50 83 VBottom 0
SYMATTR InstName R4
SYMATTR Value 1k
SYMBOL voltage 368 64 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value 15
SYMBOL voltage 368 176 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V2
SYMATTR Value 15
SYMBOL voltage 32 -64 R0
WINDOW 3 -12 -97 Left 0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
WINDOW 0 35 57 Left 0
SYMATTR Value PULSE(-10 10 500n 1n 1n 500n 1u)
SYMATTR InstName V3
TEXT 16 -136 Left 0 !.tran 0 2us 0 1ns