Version 4
SHEET 1 880 680
WIRE 128 64 48 64
WIRE 304 64 208 64
WIRE 48 176 48 64
WIRE 48 176 -160 176
WIRE 80 176 48 176
WIRE 304 176 304 64
WIRE 304 176 272 176
WIRE -160 192 -160 176
WIRE 80 240 48 240
WIRE 400 240 272 240
WIRE 400 256 400 240
WIRE -160 288 -160 272
WIRE 80 320 0 320
WIRE 304 320 272 320
WIRE 0 336 0 320
WIRE 304 336 304 320
WIRE 400 352 400 336
WIRE 0 432 0 416
WIRE 304 432 304 416
FLAG 48 240 0
FLAG -160 288 0
FLAG 0 432 0
FLAG 304 432 0
FLAG 400 352 0
SYMBOL LTC2903-B1 176 240 R0
SYMATTR InstName U1
SYMBOL voltage -160 176 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR Value PULSE(0 5 0 5)
SYMATTR InstName V1
SYMBOL voltage 0 320 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value PULSE(0 3.3 0 3.3)
SYMBOL voltage 304 320 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR Value PULSE(0 2.5 0 2.5)
SYMATTR InstName V3
SYMBOL voltage 400 240 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V4
SYMATTR Value PULSE(0 1.8 0 1.8)
SYMBOL res 224 48 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 10K
TEXT 400 480 Left 2 !.tran 5.5