Specifications

7
Each DC power output on the Agilent
N6705 DC power analyzer can be
modulated by the module’s built-in
arbitrary waveform generator. This
permits the output to act as a DC bias
transient generator or power arbitrary
waveform generator. The maximum
bandwidth is based on the type of
module that is installed (basic, high-
performance, precision, and SMU).
Refer to the Agilent N6700 Modular
Power System Family Specifications
Guide* for the bandwidth of each DC
power module.
The Agilent N6705 uses run length
encoding, where each point in the
waveform is defined by the voltage
setting and the dwell time or duration
to stay at that setting. Waveforms
can be generated by specifying only a
small number of points. For example,
a pulse would only take three points
to define it.
The Agilent N6705 offers the following
waveform choices (see table below):
Arbitrary Waveform Generator
Figure 9. Once you have selected a
waveform, you simply fi ll in the blanks to
describe the waveform.
Figure 8. The Arb Selection menu is
used to select which pre-programmed
waveform will be applied to the output of
the DC power module. Each of the four
outputs can have a different waveform
applied.
For each waveform, you can set it to
repeat continuously or you can speci-
fy the number of times the waveform
is repeated. For example, to generate
a pulse train of 10 identical pulses,
you can program the parameters for
one pulse and then specify that you
want it to repeat 10 times.
For user-defined voltage and cur-
rent waveforms, you can download
up to 512 setpoints of voltage or
current. For each setpoint, a dwell
time is specified and output will
stay (i.e., dwell) at that setpoint for
the programmed dwell time value.
For each of the 512 setpoints in the
user-defined waveform, you can have
a different dwell time from 0 to 262
seconds with 1 microsecond resolu-
tion. The module will step through the
user-defined table of values, staying
at each setpoint for the programmed
dwell time, and then it will move on
to the next point. User-defined wave-
forms can be imported from a CSV
file or directly entered from the front
panel of the DC power analyzer.
* Complete specifi cations are available at
http://cp.literature.agilent.com/
litweb/pdf/N6700-90001.pdf
Arbitrary waveform (voltage or current) Number of points per waveform
Sine 100 points
Step 2 points
Ramp 100 points
Pulse 3 points
Stepped ramp (or staircase) Determined by the number of steps
programmed
Exponential 100 points
Trapezoid 100 points
User-defi ned waveform
(where the output is a voltage or current
source)
Up to 512 points with point-by-point
adjustable dwell
Constant-dwell waveform Up to 64,000 points with programmable
dwell (same for all points)
Constant-dwell voltage or current
waveforms can also be generated,
with up to 64000 programmable points.