Specifications

To test the input resistance (oscilloscope)
Testing the input resistance verifies the performance of the following specification:
• Input resistance
This test checks the input resistance at the 50 Ω and 1 MΩ settings in the Coupling
field.
Equipment Required
Equipment Critical Specifications Recommended
Model/Part
Digital Multimeter Measure resistance (4-wire) better than 0.25%
accuracy
HP 3458A
Cables (2) BNC (m)(m) 48-inch HP 10503A
Adapter BNC Tee (m)(f)(f) HP 1250-0781
Adapters (2) BNC (f) to Dual Banana Plug HP 1251-2277
Set up the equipment
1 Turn on the equipment required and the logic analyzer. Let them warm up for
30 minutes if you have not already done so.
2 Set up the multimeter to make a 4-wire resistance measurement.
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