Agilent Technologies N1022A Betriebsanweisung

N2795A/N2796A Single-ended Active ProbesUser’s Guide© Copyright Agilent Technologies 2010All Rights Reserved.

10Performance Data PlotsFigure 2 Input impedance over frequency (red = measured, blue = model)

11Safety InformationSafety InformationWarning To avoid personal injury and to prevent fire or damage to this product or products connected to it, revi

12Using the N2795A/N2796A ProbesUsing the N2795A/N2796A ProbesUsing the HeadlightThese probes are equipped with two white LED headlights that can be u

13Using the N2795A/N2796A ProbesOscilloscope CompatibilityThe N2795A/N2796A probes are compatibile with the following Agilent oscilloscopes (those wit

14Dynamic Range and Offset Voltage LimitationsDynamic Range and Offset Voltage LimitationsWith the N2795A/96A active probes offering 16 Vpp (+/-8V) of

15Dynamic Range and Offset Voltage LimitationsAccessoriesThe following sections describe how to use the N2795A/96A probe accessories. They are placed

16Dynamic Range and Offset Voltage LimitationsConfigurations 1 and 2: Rigid Probe Tips / Spring Probe Tips and Offset Ground / Ground BladeBandwidth w

17Dynamic Range and Offset Voltage LimitationsThe recommended grounding accessory for the rigid probe tip is the offset ground as shown. Both of these

18Dynamic Range and Offset Voltage LimitationsRigid probe tipPlease note this ridge to tellwhich end is inserted into theprobe

19Dynamic Range and Offset Voltage LimitationsConfiguration 3: Copper Pads with Flex GroundBandwidth with N2795A: 900 MHz*Bandwidth with N2796A: 1.8 G

2ContentsInspecting the Probe ... 3Cleaning the Probe ... 3Handling the Probe ... 3N2795A/N2796A Single-ended Active Probes ... 4Accessories Supplied

20Dynamic Range and Offset Voltage LimitationsConfiguration 4: Y-Lead Adapter with 0.1” HeadersBandwidth with N2795A: 750 MHzBandwidth with N2796A: 1

21Dynamic Range and Offset Voltage LimitationsConfiguration 5: Flex Nose ClipsBandwidth with N2795A: 500 MHzBandwidth with N2796A: 500 MHzReplacement

22Configurations 6 and 7: Ground Leads and Right Angle Ground LeadsConfigurations 6 and 7: Ground Leads and Right Angle Ground LeadsReplacement Kit Pa

23Configurations 6 and 7: Ground Leads and Right Angle Ground LeadsColor Coding RingsThe color coding rings that can be used to keep track of which pr

24Calibration Testing ProceduresCalibration Testing ProceduresThese procedures are used to test the warranted specifications for the N2795A/N2796A sin

25To Test Input ResistanceTo Test Input ResistanceRequired Test EquipmentTest Probe Input Resistance1 Connect the DMM probes between the probe tip and

26To Test Bandwidth To Test BandwidthThis test ensures that the Probe meets its specified bandwidth.N2795A: 1 GHzN2796A: 2 GHzEquipment/Tool Critical

27To Test BandwidthInitial Setup1Turn on the 8720ES VNA and let warm up for 20 minutes.2 Press the green "Preset" key on the 8720ES VNA.3 Us

28To Test BandwidthCalibrating a Reference Plane1 Press the "Cal" key on the 8720ES VNA.To get a reliable measurement from the 8720ES VNA we

29To Test Bandwidth2Then Press the "cal menu" screen key.3 Finally, press the "full 2 port" screen key.4 Connect one of the high q

3Inspecting the ProbeInspecting the Probeo Inspect the shipping container for damage. Keep the damaged shipping container or cushioning material until

30To Test Bandwidth6Perform Calibration for the port one side of the Reference plane.• Press the "reflection" screen key• Connect open end o

31To Test Bandwidth7Connect the other high quality SMA cable to port two of the 8720ES VNA.8 Get the opposite sex of the 85052D calibration standards

32To Test Bandwidth• The 8720ES VNA will beep when done.• Connect load end of 85052D to the available end of the port two SMA cable.• Select the "

33To Test Bandwidth12Press the "transmission" screen key.13 Press the "do both fwd and reverse" screen key.14 The 8720ES VNA will

34To Test BandwidthMeasuring Vin Response1 Position the probe conveniently to allow the probe tip to be normal to the PV/DS board.2 Hold the probe in

35To Test BandwidthMeasuring Vout Response1 Disconnect the port 2 cable from PV/DS test board and attach to probe output on the AutoProbe Adapter.2 Co

36To Return the Probe to Agilent Technologies for ServiceTo Return the Probe to Agilent Technologies for ServiceIf the probe is found to be defective

Agilent TechnologiesP.O. Box 21971900 Garden of the Gods RoadColorado Springs, CO 80901Safety NoticesThis apparatus has been designed and tested in ac

Notices© Agilent Technologies, Inc. 2010No part of this manual may be reproduced in any form or by any means (including electronic storage and retriev

Agilent TechnologiesP.O. Box 21971900 Garden of the Gods RoadColorado Springs, CO 80901

4N2795A/N2796A Single-ended Active ProbesN2795A/N2796A Single-ended Active ProbesThe N2795A/96A are a new generation of 1 and 2 GHz single-ended activ

Agilent Technologies, October 2010Manual Part Number: N2795-97000Only Available Electronically

5Accessories Supplied with ProbeAccessories Supplied with ProbeThe following table shows the standard accessories supplied with the N2795A and N2796A

6Replacement Accessory KitsReplacement Accessory KitsThe following table shows the replacement accessory kits available for the N2795A and N2796A prob

7Characteristics and SpecificationsCharacteristics and SpecificationsCharacteristics and specifications for the N2795A/N2796A Single-ended Active Prob

8Dimensions (in millimeters)Mechanical Characteristics Environmental Specifications Dimensions (in millimeters)Approximate Weight (probe only) 100 gC

9Performance Data PlotsPerformance Data PlotsFigure 1 Frequency response of N2796A (Vout/Vin)NOTE: This plot is for the spring/rigid probe tip and an