44 | Keysight | Probing Solutions for Logic Analyzers - Data Sheet
General-Purpose Probing Flying Lead Probing Accessories
Wedge adapters
Table 5. Wedge probe adapter
The Keysight Wedge technology provides
very reliable probing of a few channels
on 0.5 mm and 0.65 mm pitch QFPs. No
clear area is required around the device.
Each Wedge of the probe slides between
the legs of the QFP. The side of each
Wedge probe contacts the package legs.
An insulation core electrically isolates
the sides of each Wedge (see Figures 7.1
and 7.2). Various 3-signal, 8-signal, and
16-signal probes are available (see
Table 5).
IC leg spacing
0.5 mm
0.5 mm
Number of signals
Number of wedges in pack
Model number
E2613A
E2614A
E2643A
E2615A
3
8
16
3
8
1
1
1
1
1
1
0.5 mm
0.65 mm
0.65 mm
0.65 mm
E2616A
E2644A
16
Figure 7.1. Three-signal Wedge electrical
connection
Top view of 16 signal pins
Bottom view of 16 ground pins (connected to common ground plane)
Ground connector pins
Wedge connector pins
16
Gaps
Removable jumper
1
Figure 7.2. Eight-signal and 16-signal Wedge (16-signal Wedge has a common ground plane).
Miscellaneous probing
accessories
The ferrite core assembly can be added to
the probe cable to suppress EMI and RFI
noise that can corrupt the measurement.
Figure 7.3. Ferrite core assembly, 16555-60001.
KEYSIGHT [ Keysight Technologies ]
