So I have a current sensor with it's output going to a PIC.  I'd like =20
the PIC to control a "short" across the current-sense resistor and =20
wondering what's the best way to do this.  In this case, best is =20
most-effective (lowest short resistance), though small size and cost =20
is always a factor.

The signal being current-sensed is bi-directional, up to 10mA, and the =20
common-mode voltage is in the 24V range.  The PIC will be powered from =20
5V.  I'm confused about using a single FET to do this due to the =20
bi-directional signal, and thinking I could use an electronic switch.  =20
Perhaps a small SMT relay such as =20
http://search.digikey.com/us/en/products/9007-05-11/306-1250-ND/1016639 , b=
ut =20
I'd prefer something solid-state if I can get the same results, and a =20
bit lower-cost would be nice also.

Any thoughts?

Cheers,
-Neil.


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