- 5 -
Floating loads:
Any output load R that is floating (not connected to a local ground or earth
ground) can be connected between current output (Pin 1) and current return (Pin 2). Current
return is internally tied to signal ground SG, which can be floating or be connected to earth
ground.
Grounded loads:
Any output load R can be connected to a local loop ground LG instead of
current return. The loop grounds LG can each be different, but can only differ from signal
ground SG by a common mode voltage CMV, which is defined as V
LG
- V
SG
. Signal ground SG
must be tied to earth ground EG or be within 1 Volt of EG.