Operation and Features 2
Keysight U2722A/U2723A User’s Guide 57
Memory list delay setup
Generally, the duration spent at each command in the memory list only consists
of the time it takes to execute the commands. But for source commands, a source
delay may be included. The source delay is used to allow the source to settle
before the measurement is made. The total time period of the source delay can
include an auto delay and/or a user programmed delay.
Total delay time = auto delay time + user programmed delay time.
If auto delay is enabled, a certain duration of delay, which depends on the source
and measurement range, is performed. Auto delay is used to ensure that there is
enough rising time for the source to reach the specified level. Table 2-2 shows the
time delay set for each range when auto delay is enabled. There are two type of
user programmable source delay: the global delay and single delay. When the
global delay is added, all the subsequent source action will perform the same time
period of delay. When the single delay is added, only the next subsequent source
action will be affected while the other commands are not. When the global and
single delay are used together, only the next subsequent source action for the
single delay is affected by the single delay, while the other source actions will take
effect from the global delay.
You can use these programmable delays to perform an even or uneven sweep.
Table 2-2 Time delay set for each range when auto delay is enabled
I-range
Auto delay (ms)
Source V Source I
2 V range 20 V range 2 V range 20 V range
1
μA
10 10 20 20
10 μA
442020
100 μA
0.8 0.8 20 20
1 mA 0.5 0.5 1 1
10 mA 0.5 0.5 1 1
120 mA 0.5 0.5 1 1