User`s guide

Agilent B1500 User’s Guide, Edition 7 7- 15
Function Details
I/V-t Sampling Measurement
Setup Parameters
The following setup is required to perform the I/V-t sampling measurements. See
“I/V-t Sampling” on page 5-21 for the GUI.
NOTE If you set Interval < 0.002 s
Sampling mode must be linear. This setting is not permitted for the log sampling.
Also SPGU is not available.
All measurement channels must use the high speed A/D con
verter (ADC). This
setting is not permitted if a measurement channel uses the high resolution ADC.
If the multiple measurement channels are used, all channe
ls perform measurement
in parallel.
If the measurement ranging mode is not the fixed mode, the meas
urement channels
automatically select the minimum range that covers compliance value set to the
channel.
If the measurement time is expected to be longer t
han Interval, the measurement
channels automatically adjust the number of averaging samples (ADC settings) to
keep the sampling interval.
1. Select the following on the Channel Setup screen.
• Select SMUs used for constant voltage sources or constant current sources.
• Select V or COMMON for Mode of current monitor SMU, or I for voltage
monitor SM
U.
2. Specify the following parameters for the SMU in the Sampling Parameter area
on the Measurement Setup s
creen.
Linear/Log Sampling mode. LINEAR for linear sampling. LOG10,
LOG25, LOG50,
LOG100, LOG250, or LOG500 for
logarithmic sampling.
For the logarithmic sampling, the number after LOG
indicates the num
ber of measurement data in a decade. For
example, LOG10 mode is used to get 10 data/decade.
Interval Interval of the sampling, in seconds. 0.002 to 65.535 s,
0.001 s reso
lution.
Interval < 0.002 s in 0.00001 s resolution is also available
for the li
near sampling. It must satisfy the following
formula. See NOTE above.