Version 4
SHEET 1 880 680
WIRE -16 80 -112 80
WIRE 96 80 -16 80
WIRE 352 80 320 80
WIRE -112 96 -112 80
WIRE -16 112 -16 80
WIRE 96 160 80 160
WIRE -112 192 -112 176
WIRE -16 240 -16 192
WIRE 96 240 -16 240
WIRE 336 240 320 240
FLAG 80 160 0
FLAG 336 240 0
FLAG -112 192 0
FLAG 352 80 OUT
SYMBOL LTC6900 208 160 R0
SYMATTR InstName U1
SYMBOL res -32 96 R0
SYMATTR InstName R1
SYMATTR Value 20K
SYMBOL voltage -112 80 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 3
TEXT 408 256 Left 2 !.tran 10u