Section 4: Source-measure hardware
Model 4200A-SCS Source-Measure Unit (SMU) User's Manual
4-6
4200A-SMU-900-01 Rev. A December 2020
Basic SMU/preamplifier circuit configuration
The basic SMU and preamplifier circuit configuration is shown in the following figure. This
configuration is similar to the SMU configuration discussed earlier, with the exception of the
preamplifier, which adds low-current source-measure capabilities. The preamplifier FORCE terminal
is connected to DUT HI and DUT LO is connected to COMMON. See
(on page 2-1) for more detailed information.
Figure 56: Basic SMU and preamplifier source-measure configuration
Compliance limit for a SMU with a 4200-PA
A current limit can be programmed for a SMU with a 4200-PA when it is sourcing voltage. However, a
voltage limit can be programmed when sourcing current. The compliance limit characteristics are the
same for a SMU with a 4200-PA as for a SMU alone. Refer to
(on page 3-17).
