Version 4
SHEET 1 1228 936
WIRE 496 -128 -336 -128
WIRE 1088 -128 496 -128
WIRE -272 -64 -288 -64
WIRE -160 -64 -192 -64
WIRE -128 -64 -160 -64
WIRE 272 -64 224 -64
WIRE 384 -64 352 -64
WIRE 496 -64 496 -128
WIRE 1088 -16 1088 -128
WIRE -912 32 -1200 32
WIRE -816 32 -912 32
WIRE -704 32 -816 32
WIRE -384 32 -416 32
WIRE -336 32 -336 -128
WIRE -336 32 -384 32
WIRE -128 32 -336 32
WIRE 496 32 496 16
WIRE 496 32 224 32
WIRE -1200 48 -1200 32
WIRE -336 48 -336 32
WIRE -816 128 -816 32
WIRE -800 128 -816 128
WIRE -704 128 -720 128
WIRE -384 128 -384 32
WIRE -384 128 -416 128
WIRE -336 128 -336 112
WIRE -128 128 -144 128
WIRE 416 128 224 128
WIRE 848 128 496 128
WIRE 960 128 928 128
WIRE -1200 144 -1200 128
WIRE -912 160 -912 32
WIRE -560 224 -560 192
WIRE -128 224 -336 224
WIRE 1088 224 1088 64
WIRE 1088 224 224 224
WIRE -912 256 -912 240
WIRE -336 256 -336 224
WIRE -336 256 -912 256
WIRE -912 272 -912 256
WIRE -912 368 -912 352
FLAG -144 128 0
FLAG -160 -64 OUT
FLAG -1200 144 0
FLAG -336 128 0
FLAG -1200 32 IN
FLAG 384 -64 0
FLAG -288 -64 0
FLAG -912 368 0
FLAG 960 128 0
FLAG -560 224 0
SYMBOL cap -352 48 R0
SYMATTR InstName C1
SYMATTR Value 100µ
SYMATTR SpiceLine Rser=10m
SYMBOL VOLTAGE 256 -64 R270
WINDOW 123 -53 56 VBottom 2
WINDOW 0 32 56 VTop 2
WINDOW 3 -32 56 VBottom 2
SYMATTR InstName V2
SYMATTR Value 1.8
SYMATTR SpiceLine Rser=10m
SYMBOL res -176 -80 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 100
SYMBOL res -928 144 R0
SYMATTR InstName R2
SYMATTR Value 51K
SYMBOL res -928 256 R0
SYMATTR InstName R3
SYMATTR Value 10K
SYMBOL res 1072 -32 R0
SYMATTR InstName R5
SYMATTR Value 10K
SYMBOL res 480 -80 R0
SYMATTR InstName R4
SYMATTR Value 10K
SYMBOL VOLTAGE 400 128 R270
WINDOW 123 -53 56 VBottom 2
WINDOW 0 32 56 VTop 2
WINDOW 3 -32 56 VBottom 2
SYMATTR InstName V3
SYMATTR Value PULSE(0 2 0 1u 1u 20m 40m 6)
SYMATTR SpiceLine Rser=0.1
SYMBOL VOLTAGE 832 128 R270
WINDOW 123 -53 56 VBottom 2
WINDOW 0 32 56 VTop 2
WINDOW 3 -32 56 VBottom 2
SYMATTR InstName V4
SYMATTR Value PULSE(0 2 0.4 1u 1u 20m 40m)
SYMATTR SpiceLine Rser=0.1
SYMBOL PowerProducts\\LT1129-3.3 -560 80 R0
SYMATTR InstName U2
SYMBOL res -816 144 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R7
SYMATTR Value 10K
SYMBOL LTC694-3.3 48 96 R0
SYMATTR InstName U1
SYMBOL VOLTAGE -1200 32 R0
WINDOW 123 24 117 Left 2
SYMATTR Value PWL(20u 0 25u 7.5)
SYMATTR InstName V1
SYMATTR SpiceLine Rser=10m
TEXT 688 312 Left 2 !.tran 0.7