Page 3 - WARRANTY
WARRANTY Tektronix warrants that the systems that it manufactures and sells, (excludingcustomer-supplied equipment), will be free from defects in materials and workmanship fora period of one (1) year. The warranty period shall begin on the date of installation or one(1) month after the date of shipm...
Page 5 - Table of Contents
P7225 2.5 GHz 10X Active Probe User Manual i Table of Contents General Safety Summary v . . . . . . . . . . . . . . . . . . . . . . . . . . . . Preface vii . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Related Manuals vii . . . . . . . . . . . . . . . . . . ...
Page 6 - List of Figures
Table of Contents ii P7225 2.5 GHz 10X Active Probe User Manual List of Figures Figure 1: P7225 Probe featuring the TekConnect Interface 1 Figure 2: Connecting and disconnecting the probe 2 . . . . . . . Figure 3: Probe functional check connections 15 . . . . . . . . . . . Figure 4: Dynamic and offs...
Page 7 - List of Tables
Table of Contents P7225 2.5 GHz 10X Active Probe User Manual iii List of Tables Table 1: P7225 features and standard accessories 5 . . . . . . . . Table 2: P7225 optional accessories 12 . . . . . . . . . . . . . . . . . . . Table 3: Warranted electrical specifications 29 . . . . . . . . . . . . . Ta...
Page 9 - General Safety Summary; Only qualified personnel should perform service procedures.; To Avoid Fire or Personal Injury
P7225 2.5 GHz 10X Active Probe User Manual v General Safety Summary Review the following safety precautions to avoid injury and preventdamage to this product or any products connected to it. To avoidpotential hazards, use this product only as specified. Only qualified personnel should perform servic...
Page 10 - Safety Terms and Symbols; Terms in This Manual.
General Safety Summary vi P7225 2.5 GHz 10X Active Probe User Manual Safety Terms and Symbols Terms in This Manual. These terms may appear in this manual: WARNING. Warning statements identify conditions or practices that could result in injury or loss of life. CAUTION. Caution statements identify co...
Page 11 - vii; Preface; Related Manuals; Service Manual
P7225 2.5 GHz 10X Active Probe User Manual vii Preface This is the User Manual for the P7225 probe. This manual providesoperating information, specifications, and a replaceable parts list. Related Manuals If you need to do a performance verification or make internaladjustments to your probe, refer t...
Page 12 - Contacting Tektronix; Phone
Preface viii P7225 2.5 GHz 10X Active Probe User Manual Contacting Tektronix Phone 1-800-833-9200 * Address Tektronix, Inc.Department or name (if known)14200 SW Karl Braun DriveP.O. Box 500Beaverton, OR 97077USA Web site www.tektronix.com Salessupport 1-800-833-9200, select option 1 * Servicesupport...
Page 13 - Product Description; pF input capacitance and a high input resistance (40 k; TekConnect Interface
P7225 2.5 GHz 10X Active Probe User Manual 1 Product Description The Tektronix P7225 is a 2.5 GHz, 10X active probe. The P7225 hasa ≤ 0.8 pF input capacitance and a high input resistance (40 k Ω) , to minimize circuit loading over the specified bandwidth. The smallprofile and low-mass head of the P7...
Page 14 - Installation; Figure 2: Connecting and disconnecting the probe
Product Description 2 P7225 2.5 GHz 10X Active Probe User Manual When the probe is connected, the host instrument reads EEPROMinformation from the probe, identifying the device and allowing theappropriate power supplies to be powered on. The preamp inputs onthe host instrument are electrostatic disc...
Page 15 - Options
Product Description P7225 2.5 GHz 10X Active Probe User Manual 3 Options The following options are available when ordering the P7225 probe: H Option D1 — Calibration Data Report H Option C3 — 3 years Calibration Service H Option D3 — 3 years Calibration Data Report(requires Option C3) H Option R3 — ...
Page 17 - Features and Accessories; To avoid injury, use care when handling accessories with
P7225 2.5 GHz 10X Active Probe User Manual 5 Features and Accessories The P7225 is provided with several features and accessories designedto make probing and measurement a simpler task. To familiarizeyourself with these items and their uses, refer to Table 1. WARNING. To avoid injury, use care when ...
Page 27 - Functional Check; NOTE
P7225 2.5 GHz 10X Active Probe User Manual 15 Functional Check A functional check may be performed using the PROBE COM-PENSATION connections on the front panel of the host instrument.See Figure 3. NOTE . If you are not familiar with the operation of the host instrument, please refer to the user manu...
Page 29 - Configuration; , and the coupling is set to DC. The probe offset control is; Probe Offset
P7225 2.5 GHz 10X Active Probe User Manual 17 Configuration The P7225 provides the host instrument with the probe modelnumber, serial number, and attenuation factor. When connected to ahost instrument with a TekConnect Interface, display readouts arecorrected for the probe attenuation factor, the in...
Page 30 - Figure 4: Dynamic and offset limitations
Configuration 18 P7225 2.5 GHz 10X Active Probe User Manual 6. Change the volts/division setting to the desired range, adjustingthe offset to keep the trace on the zero reference level. NOTE . The P7225 has a ± 10.0 V offset range. The input voltage linear operating range is ± 4 V. See Figure 4. If ...
Page 31 - Operating Basics; Handling the Probe; Maximum Nondestructive Input Voltage; Refer to
P7225 2.5 GHz 10X Active Probe User Manual 19 Operating Basics Please follow these operating guidelines to get optimum performancefrom your P7225 probe. Handling the Probe Exercise care when using and storing the P7225. The probe and cableare susceptible to damage caused by careless use. Always hand...
Page 32 - Input Linear Dynamic Range; keep the input linearity error less than; Electrical Effects of Adapters
Operating Basics 20 P7225 2.5 GHz 10X Active Probe User Manual Input Linear Dynamic Range The probe head amplifier used by the P7225 has a limited linearoperating range. The usable dynamic range is ± 4.0 V however, to keep the input linearity error less than ± 0.1%, you must limit the apparent signa...
Page 33 - Figure 5: Typical effects of using a probe tip adapter; Ground Lead Length
Operating Basics P7225 2.5 GHz 10X Active Probe User Manual 21 1.7 in Y lead adapter with 2 SMT KlipChips Probe with only short ground pogo pin Test pulse without probe 3 in Ground lead on square pin Figure 5: Typical effects of using a probe tip adapter Ground Lead Length When you are probing a cir...
Page 34 - Figure 6: Waveform distortion from ground lead length
Operating Basics 22 P7225 2.5 GHz 10X Active Probe User Manual Test pulse without probe Probe with only short ground pogo pin Square pins on test board (no signal or ground length) 1.7 in Y lead adapter 3.0 in Ground lead with SMT KlipChip Figure 6: Waveform distortion from ground lead length Ground...
Page 35 - Figure 7: Ground lead equivalent circuit
Operating Basics P7225 2.5 GHz 10X Active Probe User Manual 23 V source Probe C in ≤ 0.8 pF L gl (ground lead) Figure 7: Ground lead equivalent circuit Ringing and rise time degradation can be masked if the frequencycontent of the signal degradation is beyond the bandwidth of the hostinstrument. You...
Page 37 - Helpful Hints; Follow these helpful hints to make probing easier and noise free.; Low-inductance Grounding
P7225 2.5 GHz 10X Active Probe User Manual 25 Helpful Hints Follow these helpful hints to make probing easier and noise free. Low-inductance Grounding Placing a ground plane on top of the IC package being probed canminimize ground lead length and inductance. See Figure 8. Figure 8: Low-inductance gr...
Page 38 - SureFoot Grounding; Figure 9: Using a SureFoot adapter for grounding
Helpful Hints 26 P7225 2.5 GHz 10X Active Probe User Manual This method is very useful when making many measurements on thesame package. Using a ground plane on the IC package makesprobing the IC package easier and avoids adding unnecessary groundlead length and distortion. SureFoot Grounding If you...
Page 39 - Probe Tip Test Points; Figure 10: Using a push-in probe tip as a test point
Helpful Hints P7225 2.5 GHz 10X Active Probe User Manual 27 Probe Tip Test Points You can solder the push-in probe tip or a 0.025 inch square pin to acircuit, to be used as a temporary test point. See Figure 10. Solder the push-in probe tip onto a lead or pin with a low-powersoldering iron. Press th...
Page 41 - Appendix A: Specifications; Specifications; To prevent damage to the probe or circuit under test, do
P7225 2.5 GHz 10X Active Probe User Manual 29 Appendix A: Specifications The probe and host instrument must first be allowed to warm up for20 minutes before measurements are taken. Specifications CAUTION. To prevent damage to the probe or circuit under test, do not apply voltages beyond the nondestr...
Page 43 - Figure 11: Typical input impedance and phase versus frequency
Appendix A: Specifications P7225 2.5 GHz 10X Active Probe User Manual 31 45 K Ω 110 ° 40 K Ω 35 K Ω 30 K Ω 25 K Ω 1 MHz 10 MHz 100 MHz 1 GHz 10 GHz 90 ° 70 ° 50 ° 30 ° 10 ° --10 ° --30 ° --50 ° --70 ° --110 ° --90 ° 20 K Ω Frequency (Hz) Input Impedance M agit ude (ohm s) P hase (degrees) 15 K Ω 10 ...
Page 44 - Gain; Figure 12: Typical bandwidth
Appendix A: Specifications 32 P7225 2.5 GHz 10X Active Probe User Manual Frequency 100 MHz 10 MHz 10 GHz 1 GHz -- 17 -- 20 -- 23 -- 26 -- 29 -- 32 Gain = 20 Log Ꮛ V OUT V IN Ꮠ Ga in dB Figure 12: Typical bandwidth
Page 47 - Appendix B: User Service; This section explains the maintenance for the P7225 probe.; Inspection and Cleaning; To prevent damage to probe materials, do not use; Calibration; The manual is a printable pdf file, and is available; Replacement Parts; Refer to the
P7225 2.5 GHz 10X Active Probe User Manual 35 Appendix B: User Service This section explains the maintenance for the P7225 probe. Inspection and Cleaning CAUTION. To prevent damage to probe materials, do not use chemicals that contain benzine, benzene, toluene, xylene, acetone, orsimilar solvents. D...
Page 48 - Preparation for Shipment; Seal the carton with shipping tape.
Appendix B: User Service 36 P7225 2.5 GHz 10X Active Probe User Manual Preparation for Shipment If the original packaging is unfit for use or not available, use thefollowing packaging guidelines: 1. Use a corrugated cardboard shipping carton having insidedimensions at least one inch greater than the...
Page 49 - Appendix C: Replaceable Parts; Parts Ordering Information; Part number
P7225 2.5 GHz 10X Active Probe User Manual 37 Appendix C: Replaceable Parts This section contains a list of replaceable parts for the P7225 probe.Use this list to identify and order replacement parts. Parts Ordering Information Replacement parts are available from or through your localTektronix, Inc...
Page 50 - Using the Replaceable Parts List; Item Names
Appendix C: Replaceable Parts 38 P7225 2.5 GHz 10X Active Probe User Manual Using the Replaceable Parts List The tabular information in the Replaceable Parts List is arranged forquick retrieval. Understanding the structure and features of the listwill help you find the information you need for order...
