7-8 Keysight E5260/E5270 User’s Guide, Edition 6
If You Have a Problem
When You Make a Measurement
If Measured Voltage has some Error when Forcing a
Large Current
Voltage measurement may have some error because of the effects of the cable
resistance when forcing a large current.
To solve this problem:
• Use kelvin connections between SMU and DUT. To cancel the effects of cable
resistance, connect the sense line as close as possible to the terminal of the DUT.
If Large Current Causes High Temperature (Thermal
Drift)
If a large current is forced to a DUT, the temperature of the DUT may increase,
which may cause characteristics to drift.
To solve this problem:
• Use the pulse output mode of the SMU.
For large currents, the SMU should be set to pulse output mode. This decreases
the average power output to prevent temperature rise of DUT.
If Measurement Takes More Time than Specified
If you set many measurement channels, auto ranging mode, or too long integration
time, measurement takes a longer time.
To solve this problem:
Depending on your measurement requirements, perform following:
• Decreases measurement channels.
• Uses limited auto ranging mode.
• Uses fixed range.
• Decreases averaging samples of the high-speed A/D converter.
• Decreases integration time of the high-resolution A/D converter (for E5270B).
• Disables the ADC zero function (for E5270B).
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