Datasheet

Figure 8. High speed test extensions LIST mode provides
“power ARB” capability
V
oltage
Time in seconds
High-Speed Test Extensions
To make your testing go even faster, the
N6700 DC power modules offer High-
Speed Test Extensions
(HSTE). This enhancement to the DC
power modules extends the capabilities
to include features similar to a built-in
arbitrary waveform generator and a
built-in oscilloscope. HSTE is optional on
the N6730/40/50/70 DC power modules.
HSTE is standard on the N6760 precision
DC power modules, the N6780 SMU
modules, the N6783 application-specific
modules, and the N6790 Electronic Load
series modules.
Through the LIST mode of HSTE, you can
download up to 512 setpoints of voltage
and current. In LIST mode, you can
program the output to execute a LIST of
voltage and current setpoints. For each
setpoint, a dwell time can be specified
and the power supply will stay (i.e., dwell)
at that setpoint for the programmed dwell
time value. For each setpoint in the LIST,
you can have a different dwell time from
0 to 262 seconds with 1 microsecond
resolution.* Then, you can trigger the
module to begin executing the list. The
module will step thru the list, staying at
each setpoint for the programmed dwell
time, and then it will move on to the next
point. This speeds up execution by remov-
ing the computer I/O from the process.
The result is an output that automatically
changes according to the programmed
list, just like an arbitrary waveform
generator.
HSTE also provides an oscilloscope-like
digitizer built into the power module to
capture voltage and current measurements
of up to 524,288 points at up to 97,656
samples per second. Note that the N6780
SMUs and N6790 Electronic Loads
measure at 195,312 samples per second.
For applications such as design validation
of battery powered digital devices, the
ability to capture dynamic information about
the current flowing into the DUT allows
designers to better understand the current
drain on DUT batteries and optimize DUT
power management during normal DUT
operation and in DUT standby mode.
The digitizer can also be synchronized
with changes in the output. For example,
the digitizer can make measurements
in response to a trigger generated by
a change in output voltage caused by
LIST mode. In this configuration, you can
ensure that measurements are made at
the right moment during each step of
an executing LIST. This is particularly
useful if you are trying to measure current
consumption during a rapidly changing
voltage stimulus, such as current drawn
during a pulsed output voltage.
Precision Low-Level
Performance
The N6760 Series of Precision DC Power
Modules additionally provide dual ranges
on both programming and measurement.
In the low range, these power supplies
provide precision in the milliampere and
microampere regions. They are ideally
suited for semiconductor and passive device
testing, or where a precisely controlled
output and highly accurate, precise
measurements are needed during test.
Source/Measure Unit Modules
For The Most Demanding
Applications
The N6780 Series of Source/Measure Units
offer the highest level of performance in
the N6700 Series. These SMUs feature
highly accurate measurements down to
nanoamperes while providing operation as
a DC voltage source, DC current source,
and electronic load. For details on these
products and how they can be used for ap-
plications including battery drain analysis
and functional test, visit www.keysight.
com/find/N6780 and download the N6780
Series Source/Measure Units (SMUs) for
the N6700 Modular Power System Data
Sheet, literature number 5990-5829EN.
Electronic load modules for
advanced loading requirement
applications
The New N6790 Series Electronic Load
family offers users various loading
methods for power supply testing. These
methods come in the form of operations
modes - from constant voltage, constant
current, constant resistance or constant
power, which allows users to adapt various
load conditions needed for power supply
testing.
* Note that the output response time is less than 5
milliseconds per voltage change, so steps of less
than 5 milliseconds will not achieve their final
output voltage value before moving on to the
next step. This is useful when trying to create a
smooth waveform.
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