Agilent Technologies N6705 Specifikace stáhnout pdf (Strana 5)

5

Each DC power module in the

Agilent N6705 DC power analyzer

has a fully integrated digitizer to

capture the actual voltage versus

time and current versus time being

sourced out of the DC output into

the DUT. This digitized data is dis-

played on the large color display

just like an oscilloscope. Because

this oscilloscope function is built-

in, it is possible to make current

measurements without current

sense resistors, current shunts, or

current probes. This greatly reduces

measurement setup complexity

and provides for accurate and fully

specified, calibrated measurements.

The accuracy of the measurements

in oscilloscope mode is based on

the type of module that is installed

(basic, high-performance autorang-

ing, precision, and SMU). You can

find this information in the speci-

fications tables starting on page

15 under the performance param-

eter “Oscilloscope Measurement

Accuracy.”

The N6760 Series of precision DC

power modules offer simultaneous

digitizing of output voltage and out-

put current, such that you can view a

voltage trace and a current trace at

the same time on the oscilloscope

display. For all other module types,

you can select to view either a volt-

age trace or a current trace on the

oscilloscope display.

The digitizer in each module runs

at up to 200 kHz and 512 k samples

per trace. With an effective mea-

surement bandwidth of up to

30 kHz, this oscilloscope function

is perfectly matched to capture

time varying events on the DC out-

put, such as peak current demand,

dropouts, rise times and other DC

transients and disturbances.

The oscilloscope can be triggered

on either voltage or current levels.

Because the Agilent N6705 DC

power analyzer is an integrated

instrument, the oscilloscope can

also be easily configured to trigger

on the start of an arbitrary waveform

or to trigger when the DC power

output is enabled. For example, to

make an inrush current measure-

ment on your DUT, you can set the

oscilloscope to trigger on the DC

output’s on/off key, set the trigger

mode to single shot, and then turn

on the DC output. This will imme-

diately capture the current flowing

out of the DC module into the DUT

and give a picture of the inrush cur-

rent of the DUT. This integrated

functionality is not available when

using a collection of separate test

instruments on the test bench and

is an example of how the DC power

analyzer reduces setup time and

complexity.

Oscilloscope

Figure 5. In Scope View, voltage and

current traces are displayed. In this

picture, the DC current flowing into the

DUT is clearly visible as a time-varying

waveform.

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