Version 4
SHEET 1 1672 680
WIRE -144 -1056 -624 -1056
WIRE -16 -1056 -144 -1056
WIRE 400 -1056 304 -1056
WIRE 512 -1056 400 -1056
WIRE 624 -1056 512 -1056
WIRE 720 -1056 624 -1056
WIRE -624 -1040 -624 -1056
WIRE 624 -1040 624 -1056
WIRE 720 -1040 720 -1056
WIRE -16 -976 -144 -976
WIRE 400 -960 400 -976
WIRE 400 -960 304 -960
WIRE -624 -944 -624 -960
WIRE 624 -944 624 -976
WIRE 720 -944 720 -960
WIRE 512 -928 512 -1056
WIRE -272 -896 -288 -896
WIRE -144 -896 -192 -896
WIRE -16 -896 -144 -896
WIRE 336 -864 304 -864
WIRE -144 -816 -624 -816
WIRE -16 -816 -144 -816
WIRE -624 -800 -624 -816
WIRE 336 -768 304 -768
WIRE -16 -736 -144 -736
WIRE -624 -704 -624 -720
WIRE 512 -672 512 -848
WIRE 512 -672 304 -672
WIRE -16 -656 -144 -656
WIRE 144 -592 144 -608
FLAG -624 -944 0
FLAG -624 -1056 V1
FLAG -624 -704 0
FLAG -624 -816 V2
FLAG 624 -944 0
FLAG 720 -1056 OUT
FLAG -288 -896 0
FLAG 720 -944 0
FLAG 144 -592 0
FLAG 336 -864 V2ok
FLAG 336 -768 0
SYMBOL cap 608 -1040 R0
SYMATTR InstName C1
SYMATTR Value 10µ
SYMBOL res -160 -1072 R0
SYMATTR InstName R6
SYMATTR Value 1Meg
SYMBOL res -160 -992 R0
SYMATTR InstName R7
SYMATTR Value 237K
SYMBOL res -176 -912 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R8
SYMATTR Value 121K
SYMBOL res -160 -832 R0
SYMATTR InstName R9
SYMATTR Value 4.02Meg
SYMBOL res -160 -752 R0
SYMATTR InstName R10
SYMATTR Value 280K
SYMBOL res 704 -1056 R0
SYMATTR InstName R1
SYMATTR Value 100
SYMBOL voltage -624 -1056 R0
WINDOW 3 37 82 Left 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR Value PWL(0 0 10u 5 200m 5 +40m 0)
SYMATTR InstName V1
SYMBOL voltage -624 -816 R0
WINDOW 3 37 82 Left 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR Value PWL(0 0 10u 7.4 220m 7.4 340m 5)
SYMATTR InstName V2
SYMBOL LTC4420 144 -896 R0
SYMATTR InstName U1
SYMBOL res 384 -1072 R0
SYMATTR InstName R2
SYMATTR Value 1Meg
SYMBOL res 496 -944 R0
SYMATTR InstName R3
SYMATTR Value 1Meg
TEXT 496 -576 Left 2 !.tran 500ms