Version 4
SHEET 1 896 680
WIRE 352 -112 64 -112
WIRE 400 -112 352 -112
WIRE 496 -112 480 -112
WIRE 352 -80 352 -112
WIRE 208 -16 208 -48
WIRE -96 16 -96 0
WIRE 352 16 352 0
WIRE 64 64 64 -112
WIRE 112 64 64 64
WIRE -272 80 -272 64
WIRE 400 96 384 96
WIRE 496 96 496 -112
WIRE 496 96 464 96
WIRE 544 96 496 96
WIRE -96 128 -96 96
WIRE -32 128 -96 128
WIRE 112 128 48 128
WIRE -96 160 -96 128
WIRE -272 176 -272 160
WIRE 208 240 208 208
WIRE -96 256 -96 240
WIRE 144 256 144 240
FLAG -272 176 0
FLAG 144 -48 +V
FLAG -272 64 +V
FLAG 208 240 0
FLAG -96 256 0
FLAG 144 256 0
FLAG -96 0 0
FLAG 544 96 OUT
FLAG 352 16 0
SYMBOL voltage -272 64 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 28
SYMBOL LTC2058 272 96 R0
SYMATTR InstName U1
SYMBOL diode 400 112 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName D1
SYMATTR Value 1N4148
SYMBOL res 64 112 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 10
SYMBOL res -112 144 R0
SYMATTR InstName Rsense
SYMATTR Value 1m
SYMBOL current -96 16 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName Isense
SYMATTR Value 0
SYMBOL res 336 -96 R0
SYMATTR InstName R2
SYMATTR Value 10
SYMBOL res 496 -128 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R5
SYMATTR Value 1K
TEXT 168 -160 Bottom 2 ;Low Side Current Sense Amplifier\nV(out) = 101*Rsense*Isense
TEXT 496 248 Left 2 !.dc Isense 0 .1 10m