Version 4
SHEET 1 1540 680
WIRE -16 -128 -912 -128
WIRE -176 -80 -816 -80
WIRE -16 -80 -16 -128
WIRE -176 -64 -176 -80
WIRE 400 -16 192 -16
WIRE 496 -16 400 -16
WIRE 608 -16 496 -16
WIRE 192 0 192 -16
WIRE 400 0 400 -16
WIRE 608 0 608 -16
WIRE -176 32 -176 16
WIRE 80 32 -176 32
WIRE -176 48 -176 32
WIRE 496 64 496 -16
WIRE 400 96 400 80
WIRE 400 96 304 96
WIRE 608 96 608 80
WIRE -176 144 -176 128
WIRE 80 144 -176 144
WIRE -176 160 -176 144
WIRE 496 176 496 144
WIRE 496 176 304 176
WIRE -16 192 -16 0
WIRE 80 192 -16 192
WIRE -16 208 -16 192
WIRE -816 224 -816 -80
WIRE -176 256 -176 240
WIRE -16 304 -16 288
WIRE 80 304 -16 304
WIRE 464 304 304 304
WIRE -816 320 -816 304
WIRE -16 320 -16 304
WIRE 464 320 464 304
WIRE 352 352 304 352
WIRE 352 368 352 352
WIRE -912 400 -912 -128
WIRE -16 416 -16 400
WIRE 464 416 464 400
WIRE 192 432 192 416
WIRE 352 448 352 432
WIRE -912 496 -912 480
FLAG -176 256 0
FLAG -16 416 0
FLAG 192 432 0
FLAG 352 448 0
FLAG -816 320 0
FLAG -912 496 0
FLAG 608 96 0
FLAG 464 416 0
SYMBOL res -192 32 R0
SYMATTR InstName R1
SYMATTR Value 1K
SYMBOL res -192 -80 R0
SYMATTR InstName R2
SYMATTR Value 44.2K
SYMBOL res -192 144 R0
SYMATTR InstName R3
SYMATTR Value 4.53K
SYMBOL res -32 192 R0
SYMATTR InstName R4
SYMATTR Value 1K
SYMBOL res -32 304 R0
SYMATTR InstName R5
SYMATTR Value 4.53K
SYMBOL res -32 -96 R0
SYMATTR InstName R6
SYMATTR Value 27.4K
SYMBOL cap 336 368 R0
SYMATTR InstName C1
SYMATTR Value 10n
SYMBOL voltage -816 208 R0
WINDOW 123 24 146 Left 2
WINDOW 39 24 125 Left 2
SYMATTR InstName V1
SYMATTR Value PWL(0 0 5 5 6 5 7 6 8 6 10 4 11 4 12 5 21 5 22 6 23 6 25 4 26 4 27 5)
SYMBOL voltage -912 384 R0
WINDOW 123 24 146 Left 2
WINDOW 39 24 125 Left 2
SYMATTR InstName V2
SYMATTR Value PWL(0 0 3.3 3.3 13 3.3 14 4.3 15 4.3 17 2.3 18 2.3 19 3.3 28 3.3 29 4.3 30 4.3 32 2.3 33 2.3 34 3.3)
SYMBOL voltage 608 -16 R0
WINDOW 123 24 146 Left 2
WINDOW 39 24 125 Left 2
SYMATTR InstName V3
SYMATTR Value PWL(0 0 3.3 3.3 35 3.3 38.3 0 39.3 0 42.3 3.3)
SYMBOL res 384 -16 R0
SYMATTR InstName R7
SYMATTR Value 10K
SYMBOL res 480 48 R0
SYMATTR InstName R8
SYMATTR Value 10K
SYMBOL voltage 464 304 R0
WINDOW 123 24 146 Left 2
WINDOW 39 24 125 Left 2
SYMATTR Value PWL(0 0 22.399 0 22.4 3.3 22.6 3.3 22.601 0 32.399 0 32.4 3.3 32.6 3.3 32.601 0)
SYMATTR InstName V4
SYMBOL LTC2913-2 192 208 R0
SYMATTR InstName U1
TEXT 560 536 Left 2 !.tran 45