Analog Multiplexing

[Nick]

Hi,

I want to reduce a circuit for sensing current (Hall Sensor used). In
this circuit i measure current from two different motors on a single
board. The current is sensed and fed to the Signal conditioning circuit
which again combines both motor signals and generate fault signal. Is
it possible to do so? Can i use a multiplexer to do the same? I have
never used one..

Thanks and regards.

Nick

 

[Loamlo]

Hi, Nick

I used a multiplexer for the same use like yours the other day. But I
failed.
Because the multiplexer has some on-resistance depending on the current
following through it.
May someone can help.