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6
Performance Plots
N5381A Differential Solder-in Probe Head with 2x Longer Wires
N5381A Differential Solder-in Probe Head with 2x Longer
Wires
Correct length
0.25
tr10-90% = 67 ps
0.2
0.15
Volts
0.1
0.05
0
-0.05
0
Figure 112 Probe Response
160
The following performance characteristic plots are for the
1169A probe using N5381A probe head. The plot shows the
probe response to a 25Ù, 58 ps step generator with the
recommended wire length, twice the recommended wire
length with wires parallel to each other, and twice the
recommended wire length with wires spread 90 degrees.
Correct length times 2, wires parallel
tr10-90% = 65 ps
BW(-3 dB) = 12.1 GHz
(less bandwidth but more peaking)
0.2
0.4
0.6
Correct length times 2, wires spread 90 degrees
tr10-90% = 68 ps
BW(-3 dB) = 10.9 GHz
0.8
1
1.2
Time (Seconds)
1.4
1.6
1.8
1168A/9A Probe's User's Guide
2
-9
x 10
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