HP 1GSa/s Digitizing Oscilloscope 16532A manual Input Resistance, Specification

HP 16532A - Performance Tests

3-8. INPUT RESISTANCE

This test verifies the input resistance of the oscilloscope module. A four-wire measurement is used for ac- curacy at 50 Ω.

Specification:

1 M Ω ± 1% and 50 Ω ± 1%

Equipment Required:

The following equipment is required for the test. Procedures are based on the model or part numbers rec- ommended.

			Recommended
Equipment Required		Critical Specification	Model/Part Number
Digital Multimeter	Measure resistance (4-wire) better than 0.25%		HP 3458A
	accuracy
Cables (2)	50	Ω BNC (m to m) 48-inch	HP 10503A
Adapter	50	Ω BNC Tee (m)(f)(f)	HP 1250-0781
Adapters (2)	50	Ω BNC (f) to Dual Banana Plug	HP 1251-2277

Procedure:

1.Set up the multimeter to make a 4-wire resistance measurement.

2.Use the BNC-to-banana adapters to connect one end of each BNC cable to the 4-wire resistance connections on the multimeter, and connect the free ends of the cables to the BNC Tee.

3.Connect the male end of the BNC tee to the channel 1 input of the oscilloscope module. Set up the oscilloscope module according to the following parameters in the order given:

	Menu		Selection		Setting
Channel		Input		1
		Probe		1:1
		V/Div		20 mV
		Offset		0 V
		Coupling		50	Ω / DC
Trigger		Mode		Immediate

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