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DC Input Resistance Performance Verification
The recommended test interval is one year/2000 hours.
N OT E
Equipment Needed
• InfiniiMax III+ N2836A solder-in probe head. An N5441A solder-in probe head
You only need to perform the performance verification test on one of these probe heads, not
N OT E
both of them. If it passes for one of them, then it will pass for all of them.
• Keysight N5443A Performance Verification Fixture. No substitute.
• BNC(m) to SMA(m) Adapter. Pomona 4288 or equivalent.
• Banana Plug to BNC(f). Pomona 1269 or equivalent.
• Digital Multimeter:
• Keysight 33401A or equivalent
• Critical specification: 2 wire resistance accuracy
• Power Supply for Probe
• DSO/DSA 90000 X-series oscilloscope or 1134A power supply with N5477A
• No substitute
• Probe Positioner
• Keysight N2787A 3D Probe Positioner
• Critical specification: stable/accurate positioning
• Small Bench Vise
Measuring Input Resistance of N2836A Probe Head
Figure 107
for the solder-in probe head.
1
2
InfiniiMax III+ Series Probes User's Guide
may be substituted.
Autoprobe adapter (see the
page 138 procedure)
shows the correct setup for measuring the differential input resistance
Connect the BNC to SMA adapter and BNC to Banana Plug adapters as shown
in
Figure 107
on page 148.
Position the PV fixture on a table top and clamp it with a small bench vise to
steady it. Ensure that the PV fixture is flush with the table top so that when the
banana plugs are probed, it does not rock the PV fixture.
Performance Verification for N7000-Series Probes
"Bandwidth Performance Verification"
8
on
147
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