Version 4
SHEET 1 940 680
WIRE 512 64 -368 64
WIRE -368 80 -368 64
WIRE 512 80 512 64
WIRE -368 176 -368 160
WIRE 16 176 -224 176
WIRE 32 176 16 176
WIRE 432 176 288 176
WIRE 512 176 512 160
WIRE 512 176 432 176
WIRE -224 192 -224 176
WIRE 432 192 432 176
WIRE 512 192 512 176
WIRE 16 240 16 176
WIRE 32 240 16 240
WIRE 352 240 288 240
WIRE 432 272 432 256
WIRE -224 288 -224 272
WIRE 512 288 512 272
WIRE 32 304 16 304
WIRE 352 304 288 304
WIRE 352 320 352 304
WIRE 32 368 16 368
WIRE 384 368 288 368
WIRE 544 368 464 368
WIRE 544 384 544 368
WIRE 544 480 544 464
FLAG -224 288 0
FLAG -368 176 0
FLAG 352 320 0
FLAG 544 480 0
FLAG 16 368 0
FLAG 16 304 0
FLAG 512 288 0
FLAG 432 272 0
SYMBOL voltage -224 176 R0
WINDOW 0 23 24 Left 2
SYMATTR InstName V1
SYMATTR Value PWL(0 0 1m 2.5)
SYMBOL voltage -368 64 R0
WINDOW 3 27 89 Left 2
SYMATTR Value PWL(0 0 1m .8)
SYMATTR InstName V2
SYMBOL cap 336 240 R0
SYMATTR InstName C1
SYMATTR Value .022µ
SYMBOL res 480 352 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 100K
SYMBOL voltage 544 368 R0
SYMATTR InstName V3
SYMATTR Value 5
SYMBOL res 496 64 R0
SYMATTR InstName R2
SYMATTR Value 49.9K
SYMBOL res 496 176 R0
SYMATTR InstName R3
SYMATTR Value 100K
SYMBOL cap 416 192 R0
SYMATTR InstName C2
SYMATTR Value .1µ
SYMBOL LTC2907 160 272 R0
SYMATTR InstName U1
TEXT 352 448 Left 2 !.tran 400m