Section 2: Connections and configuration
Model 4200A-SCS Source-Measure Unit (SMU) User's Manual
2-18
4200A-SMU-900-01 Rev. A December 2020
SENSE LO terminal
The SENSE LO terminal is a miniature triaxial connector used to apply the SMU SENSE LO signal to
the DUT in a full-Kelvin (remote sense) application.
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The center pin is SENSE LO
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The inner shield is SENSE GUARD
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The outer shield is circuit COMMON
Nominal internal autosense resistance appears between SENSE LO GUARD and COMMON.
Use the remote sense capability of the ground unit instead of the SENSE LO of a SMU. If it is
necessary to use the SENSE LO terminal of a SMU, connect the SENSE LO terminals of all SMUs
used in a single 4200A-SCS to the DUT.
SENSE terminal
The SENSE terminal is a miniature triaxial connector used to apply the SMU SENSE signal to the
DUT in a remote-sense application when the preamplifier is not used.
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The center pin is SENSE
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The inner shield is GUARD
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The outer shield is circuit COMMON
Nominal internal autosense resistance appears between SENSE and FORCE.
The SENSE terminal does not need to be connected to the DUT for the SMU to operate correctly.
Remote sensing is automatic. If SENSE is connected to the DUT, errors due to voltage drops in the
FORCE path between the SMU and the DUT are eliminated and the SMU senses locally.
FORCE terminal
The FORCE terminal is a miniature triaxial connector used to apply the SMU FORCE signal to the
DUT when a preamplifier is not used.
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The center pin is FORCE
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The inner shield is GUARD
•
The outer shield is circuit COMMON