Atec Agilent-346a - Manual (Page 10)

10
QFP Package Probing
Electrical characteristics for this
probing technology are listed in
Table 3.
Note: The Agilent logic analyzer
probes are connected to the
adapters shown in this section.
The target system impedance load
is increased slightly (see Table 3).
Fast transition times (< 2 - 3 ns)
may suffer some loss of signal
fidelity.
The probe adapters require a
minimal “keep out” area around
the device, as shown in the
dimension tables of Figures 3.3
and 3.4.
Electrical Characteristics Elastomeric Probe Adapter 1/4 Flex Adapter
Operating voltage <40 V (DC + peak AC) <40 V (DC + peak AC)
Operating current 0.5A (max) 0.5A (max)
Insulation resistance >100 M Ω >100 M Ω
Model Parameters
Pin-to-ground plane
capacitance (typical)
E5340A
3.0 pF first row
4.0 pF second row
6.0 pF third row
E5349A
2.5 pF first row
3.5 pF second row
5.0 pF third row
E5371A
2.5 pF first row
3.5 pF second row
5.0 pF third row
Pin-to-pin capacitance 0.5 pF 2 pF
Self inductance (typical)
E5340A
15 nH first row
25 nH second row
35 nH third row
E5349A
20 nH first row
30 nH second row
40 nH third row
E5371A
20 nH first row
30 nH second row
40 nH third row
Environmental Characteristics
Operating temperature 0°C to 50°C 0°C to 50°C
Maximum operating humidity 75% relative humidity 75% relative humidity
Table 3. Probe and flexible adapter electrical and environmental characteristics