Agilent Technologies N1022A Guia do Utilizador Página 36

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36 N2820/1A User’s Guide
2 Probing
N2822/4A Probe Heads
Figure 16 V
burden
Developed Across Probing Components
Need a Different R
SENSE
Resistor Value?
If you need to use a different R
SENSE
resistance than
provided by the N2822A and N2824A heads, you can convert
an N2825A head to an internal R
SENSE
head. Refer to
“Converting an N2825A to Internal RSENSE Head” on
page 39.
NOTE Do not change the R
SENSE
resistor in N2822A or N2824A heads.
Table 4 Resistance Added by Head Components
Component
Resistance Contribution
(Round Trip)
Sensor Leads Without Socket 20 mΩ
Sensor Leads With Socket 40 mΩ
MBB Header Only (Not Connected) 20 mΩ
MBB Header/Receptacle/Socket 40 mΩ
R
SENSE
(N2822A Head) 20 mΩ
R
SENSE
(N2824A Head) 100 mΩ
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