2-4
Keysight B1500A Configuration and Connection Guide
B1500A Accessories
Accessories for the B1500A
CAUTION The GNDU can sink current of up to 4.2 A. Use the Keysight 16493L GNDU cable to
connect the GNDU to a test fixture or a connector plate.
Do not use normal triaxial cable (Keysight 16494A), because the maximum current rating
of the cable is 1 A.
NOTE For the lower current measurement, use the 16494A Triaxial cable with low-noise
environment. This cable can maximize the guard effects and minimize the impression of
the external noise.
2.1.2 CMU accessories
• CMU cables - have BNC type. Accurate capacitance measurement requires dedicated
cables so that cable
can be compensated. B1520A MFCMU has very thin modu
le
desig
n, so 16048D/E cannot connect with B1500A.
• SCUU (SMU CMU unify unit) - is used to switch the module (CMU or SMU) to be
connected to the DUT. The SCUU is available for the MPSMU and HRSMU.
• GSWU (Guard switch unit) - is used to connect the CMU high and low guard lines
together near the DUT. The connection is broken when the SCUU is in the
SMU
connection
state. The GSWU is effective for the accurate impedance measurement.
Table 2-2 CMU accessories for B1500A semiconductor device analyzer
Model/Option Description Additional Information
CMU cable
N1300A-001 CMU cable, 1.5 m
N1300A-002 CMU cable, 3 m
SCUU (SMU CMU unify unit)
N1301A-100 SMU CMU unify unit (SCUU)
Input: 4 BNC and 4 Triaxial
Output: 4 Triaxial and 6 pin connector for GSWU
cable
N1301A-102 SMU CMU unify unit (SCUU) cable, 3 m
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