Multiple Load Wiring - Keysight Technologies N6705C Operating And Service Manual

2 Installation
1. N678xA SMU connector
2. Guard shield (can be the
shield of a coaxial cable)

Multiple Load Wiring

If you are using local sensing and are connecting multiple loads to one output, connect each load to
the output terminals using separate load wires as shown.
1. Twist leads
2. 4-wire disabled
(indicator is off)
This minimizes mutual coupling effects and takes full advantage of the power module's low output
impedance. Keep each wire-pair as short as possible and twist or bundle the wires to reduce lead
inductance and noise pickup. The goal is to always minimize the loop area or physical space between
the + and - load wires from the power analyzer to the load. Keep the load leads under 14.7 meters (50
feet) per lead because of inductance effects
Note that Keysight Models N678xA SMU have additional wiring restrictions as previously discussed
under Keysight N678xA SMU
If load considerations require the use of distribution terminals that are located away from the
instrument, connect the output terminals to the remote distribution terminals by a pair of twisted or
bundled wires. Connect each load to the distribution terminals separately. Remote voltage sensing is
recommended under these circumstances. Sense either at the remote distribution terminals or, if one
load is more sensitive than the others, directly at the critical load.
60
Wiring.
Keysight N6705C Operating and Service Guide