Version 4
SHEET 1 1212 680
WIRE 16 -16 -64 -16
WIRE 368 -16 224 -16
WIRE 448 -16 368 -16
WIRE 576 -16 448 -16
WIRE 16 0 16 -16
WIRE 368 0 368 -16
WIRE 576 0 576 -16
WIRE 224 48 224 -16
WIRE 16 96 16 80
WIRE 112 96 16 96
WIRE 368 96 368 80
WIRE 368 96 336 96
WIRE 576 96 576 80
WIRE 16 112 16 96
WIRE 448 112 448 -16
WIRE 16 208 16 192
WIRE 112 208 16 208
WIRE 448 208 448 192
WIRE 448 208 336 208
WIRE 16 224 16 208
WIRE 400 304 336 304
WIRE 16 320 16 304
WIRE 400 320 400 304
WIRE 272 384 272 368
WIRE 176 400 176 368
WIRE 400 416 400 400
WIRE -64 432 -64 -16
WIRE 272 464 272 448
WIRE -64 544 -64 512
FLAG 16 320 0
FLAG 176 400 0
FLAG 400 416 0
FLAG -64 544 0
FLAG 272 464 0
FLAG 576 96 0
SYMBOL voltage 400 304 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value PWL(0 0 3.3 0 13 0 13.001 3.3 20 3.3 20.001 0)
SYMBOL voltage -64 416 R0
WINDOW 123 24 146 Left 2
WINDOW 39 24 125 Left 2
SYMATTR Value PWL(0 0 5 5 6 5 7 6 8 6 10 4 11 4 12 5 13 5 14 6 15 6 17 4 18 4 19 5 20 5 25 0)
SYMATTR InstName V2
SYMBOL res 0 96 R0
SYMATTR InstName R1
SYMATTR Value 1K
SYMBOL res 0 -16 R0
SYMATTR InstName R2
SYMATTR Value 44.2K
SYMBOL res 0 208 R0
SYMATTR InstName R3
SYMATTR Value 4.53K
SYMBOL res 352 -16 R0
SYMATTR InstName R4
SYMATTR Value 10K
SYMBOL res 432 96 R0
SYMATTR InstName R5
SYMATTR Value 10K
SYMBOL cap 256 384 R0
SYMATTR InstName C1
SYMATTR Value .01µ
SYMBOL voltage 576 -16 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V3
SYMATTR Value PWL(0 0 3.3 3.3 20 3.3 23.3 0)
SYMBOL LTC2912-2 224 208 R0
SYMATTR InstName U1
TEXT 736 472 Left 2 !.tran 25