> -----Original Message-----
> From: pic microcontroller discussion list
> [mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of Goring, Steve
> Sent: Thursday, 21 November 2002 8:10 PM
> To: PICLIST@MITVMA.MIT.EDU
> Subject: [EE]:Maxim 472 / 4377 Current sense amps
>
>
> Hi list
>
> Due to the discussion on the current sense amps a few days ago

> week or so
> ? )
> I have some samples.
>
> However my application calls for measuring > 10 amps at 24v which would
> require a
> sense resistor of 5 mOhm. How on earth (apart from a pcb track
> which I don't
> think
> I will be able to measure or make) do I get 5 mOhm ?
>
> If anybody has worked with these IC's would they be kind enough to help me
> out
> with the resistor values for the above parameters ?
>
> Thanks
>
> Steve

I usually calculate it with a length of cable, and place the two sense
points say 6" or so apart. Any good spec sheet for cable will give you the
resistance per 1000', so you could divide this down by 1000 to get the
resistance per foot.

Regards,

Kat.

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