Datasheet

04 | Keysight | N2820A/21A High-Sensitivity, High Dynamic Range Current Probes - Data Sheet
Two channel versus one channel
Keysight offers two current probe models in the N2820A Series:
N2820A two-channel and N2821A one-channel. The N2821A
looks identical to the N2820A probe but does not include the
secondary cable that is shown in Figure 4. The N2820A probe
connects to two oscilloscope channels to provide simultaneous
low and high gain views for wider dynamic range measurement,
while the N2821A probe provides one user-selectable view at a
time.
Figure 4. The N2820A 2-channel high-sensitivity current probe. The
N2821A does not include the secondary cable.
Current consumption over time measurement
With current waveforms captured, you now want to calculate
the average current consumption of the system over time.
Keysight’s Infiniium oscilloscopes provide an area under the
curve measurement (Charge) where you can easily calculate the
integrated current consumptions over time.
Figure 5. Infiniium oscilloscope coupled with the N2820A current probe
provides the area under the curve measurement for accurate current
consumption measurement.
Oscilloscope compatibility
The N2820A and N2821A current probes are compatible with
Keysight oscilloscopes shown in the characteristics table. The
N2820A Series current probes, together with Keysight’s Infiniium
9000 H-Series high-definition oscilloscopes, deliver the ultimate
high definition measurement solution, letting users view and
resolve small current details not traditionally seen on 8-bit
oscilloscopes.
Figure 6. The InfiniiVision 3000 X- or 4000 X-Series oscilloscope can
also be paired with the N2820A/21A current probes to provide the same
simultaneous low- and/or high-gain views for wider dynamic range
current measurement.