Tektronix P7225 Ground Lead Length

OperatingBasics

P7225 2.5 GHz 10X Active Probe UserManua l 21

1.7in Y lead adapter with 2 SMT KlipChips

Probewith only short ground pogo pin

Testpulse without probe

3in G round lead on square pin

Figure 5: Typicaleffects of using a probe tip adapter

Ground Lead Length

When you are probing a circuit, always use as short a ground lea d as

possible between the probe head and circuit ground.

The series inductance added by the probe tip a nd ground lead can

result in a resonantcircuit; this circuit may cause parasitic ringing

within the bandwidth of your host instrument. Refer to Figure 6.

Contents

Main Page WARRANTY Page Table of Contents List of Figures List of Tables Page General Safety Summary ToAvoid Fire or Personal Injury Safety Termsand Symbols Preface Related Manuals Contacting Tektronix Product Description TekConnectInterface Installation Options Page Features and Accessories 6P7225 2.5 GHz 10X Active Probe UserManua l P7225 2.5 GHz 10X Active Probe UserManua l 7 8P7225 2.5 GHz 10X Active Probe UserManua l P7225 2.5 GHz 10X Active Probe UserManua l 9 10 P7225 2.5 GHz 10X Active Probe UserManua l Table1: P7225 features and standard accessories (Cont.) Page 12 P7225 2.5 GHz 10X Active Probe UserManua l P7225 2.5 GHz 10X Active Probe UserManua l 13 Table2: P7225 optional accessories (Cont.) 14 P7225 2.5 GHz 10X Active Probe UserManua l Table2: P7225 optional accessories (Cont.) Functional Check Page Configuration Probe Offset Page Operating Basics Handling the Probe Maximum Nondestructive Input Voltage Input Linear Dynamic Range Electrical Effects of Ad apters Ground Lead Length Page Page Page Helpful Hints Low-inductance Grounding SureFoot Grounding Probe Tip Test Points Page Appendix A: Specifications Specifications Page Appendix A: Specifications Figure 11:Typical input impedance and phase versus frequency P7225 2.5 GHz 10X Active Probe UserManua l 31 Page Appendix A: Specifications P7225 2.5 GHz 10X Active Probe UserManua l 33 Figure 13: Probe head and compensation box dimensions Table5: Physical characteristics Table6: Environmental characteristics Page Appendix B: User Service Inspection and Cleaning Calibration Replacement Parts Preparation for Shipment Appendix C: Replaceable Parts Parts Ordering Information Using the Replaceable Parts List Page Page AppendixC: Replaceable Parts P7225 2.5 GHz 10XActive Probe User Manual 41 Page AppendixC: Replaceable Parts P7225 2.5 GHz 10XActive Probe User Manual 43 Appendix C: Replaceable Parts P7225 2.5 GHz 10XActive Probe User Manual44 CROSSINDEX - MFR. CODE NUMBER TO MANUFACTURER