N5424A Datasheet, PDF (5/11 Pages) Keysight Technologies – CAN/LIN Measurements (Option AMS)

05 | Keysight | CAN/LIN Measurements (Option AMS) for IniniiVision Series Oscilloscopes - Data Sheet
Probe automotive signals with precision –
even in environmental chambers
Signal integrity measurements on differential CAN signals
require precision differential active probing. Keysight offers
a range of differential active probes for various bandwidths
and dynamic range applications.
For testing differential CAN signals on the bench or in the
field, Keysight recommends either the N2791A, which is a 25
MHz 8-MΩ differential active probe or the N2792A, which is
a 200 MHz 1-MΩ differential active probe.
If you need to connect to DB9-SubD connectors on your
differential CAN bus, Keysight also offers the CAN/FlexRay
DB9 probe head (Part number 0960-2926). This differential
probe head, which is shown in the insert of Figure 5, is
compatible with both the N2791A and N2792A differential
active probes and allows you to easily connect to your CAN
differential bus.
In addition to testing in a controlled environment,
automotive embedded designs based on CAN technology
must also be tested under simulated extreme conditions
in environmental chambers. These extreme conditions
may include testing ECUs and differential serial buses at
temperatures exceeding 150° Celsius. Unfortunately, most
differential active probes are not rated to operate at these
extreme temperatures.
Figure 5. Keysight’s N2792A 200-MHz differential active probes.
For extreme temperature testing applications, Keysight
recommends the InfiniiMax 1130A Series differential active
probe. With the unique electrical and physical architecture
of the 1130 Series InfiniiMax active probes, the N5450A
extreme temperature cable extension kit can be used to
extend and displace the probe’s active amplifier to be
outside of an environmental chamber (see Figure 6). With
this configuration, InfiniiMax’ passive probe heads can be
connected to test points within the chamber with
temperatures ranging from -55 to +155 °C.
Figure 6. The Extreme Temperature Cable Extension Kit (N5450A)
allows differential active probing within environmental chambers
at extreme temperatures using 1130A IniniiMax probe system.
Figure 4. Keysight N2791A 25 MHz differential active probe.