Version 4
SHEET 1 1268 788
WIRE -304 -64 -576 -64
WIRE -208 -64 -224 -64
WIRE -576 16 -576 -64
WIRE -480 16 -576 16
WIRE -384 16 -480 16
WIRE 480 16 -384 16
WIRE 480 48 480 16
WIRE 96 80 -208 80
WIRE 192 80 176 80
WIRE 480 176 480 128
WIRE 480 176 320 176
WIRE -576 192 -576 16
WIRE -480 192 -480 16
WIRE -384 192 -384 16
WIRE -208 208 -208 80
WIRE -128 208 -208 208
WIRE 320 208 320 176
WIRE 320 208 192 208
WIRE 480 208 480 176
WIRE -256 272 -288 272
WIRE -128 272 -176 272
WIRE 320 272 192 272
WIRE 320 320 320 272
WIRE 480 320 480 288
WIRE 480 320 320 320
WIRE -384 336 -384 272
WIRE -128 336 -384 336
WIRE 208 336 192 336
WIRE 480 336 480 320
WIRE -480 400 -480 272
WIRE -128 400 -480 400
WIRE 304 400 192 400
WIRE 480 432 480 416
WIRE 304 448 304 400
WIRE -576 464 -576 272
WIRE -128 464 -576 464
WIRE 224 464 192 464
WIRE -576 480 -576 464
WIRE -576 560 -576 544
WIRE 304 560 304 528
FLAG 224 464 0
FLAG -288 272 0
FLAG 272 336 0
FLAG 480 432 0
FLAG -208 -64 0
FLAG -576 560 0
FLAG 304 560 0
FLAG 192 80 0
SYMBOL voltage -160 272 R90
WINDOW 0 -32 56 VBottom 2
WINDOW 3 34 73 VTop 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value PWL(0 0 10m 12)
SYMBOL res 464 320 R0
SYMATTR InstName R1
SYMATTR Value 10K
SYMBOL res 464 144 M180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R2
SYMATTR Value 57.6K
SYMBOL res 464 304 M180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R3
SYMATTR Value 1.1K
SYMBOL cap 272 320 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 29 VTop 2
SYMATTR InstName C1
SYMATTR Value 22n
SYMBOL res -400 176 R0
SYMATTR InstName R4
SYMATTR Value 10K
SYMBOL voltage -320 -64 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 -32 56 VBottom 2
SYMATTR InstName V2
SYMATTR Value PULSE(2.5 5 0 1000m 1000m 3000m 5000m)
SYMBOL cap -560 544 R180
WINDOW 0 -34 53 Left 2
WINDOW 3 -66 14 Left 2
SYMATTR InstName C2
SYMATTR Value 1000p
SYMBOL current 304 448 R0
SYMATTR InstName I1
SYMATTR Value PWL(0 0 1 0 1.001 1m 2 1m 2.001 -1m 3 -1m 4 -5m 4.001 -5m 5 5m)
SYMBOL res -496 176 R0
SYMATTR InstName R5
SYMATTR Value 10K
SYMBOL res -592 176 R0
SYMATTR InstName R6
SYMATTR Value 10K
SYMBOL voltage 80 80 R270
WINDOW 3 -32 56 VBottom 2
WINDOW 0 32 56 VTop 2
SYMATTR Value PWL(0 0 5010m 0 5011m 0.9 10010m 0.9 10011m 5)
SYMATTR InstName V3
SYMBOL LTC2919-25 32 336 R0
SYMATTR InstName U1
TEXT 0 552 Left 2 !.tran 15