Tektronix P7225 User Manual
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Tektronix P7225 User Manual

Tektronix P7225 User Manual

2.5 ghz 10x active probe
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User Manual
P7225
2.5 GHz 10X Active Probe
071-1187-01
Warning
The servicing instructions are for use by qualified
personnel only. To avoid personal injury, do not
perform any servicing unless you are qualified to
do so. Refer to all safety summaries prior to
performing service.
www.tektronix.com

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  • Page 1 User Manual P7225 2.5 GHz 10X Active Probe 071-1187-01 Warning The servicing instructions are for use by qualified personnel only. To avoid personal injury, do not perform any servicing unless you are qualified to do so. Refer to all safety summaries prior to performing service.
  • Page 2 Copyright © Tektronix, Inc. All rights reserved. Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supercedes that in all previously published material. Specifications and price change privileges reserved. Tektronix, Inc., P.O. Box 500, Beaverton, OR 97077 TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.
  • Page 3 If any component of the system is a Tektronix product that is normally sold with a separate warranty, such separate warranty will apply to the component whenever its terms are more favorable to the Customer.

  • Page 5: Table Of Contents

    ......Appendix C: Replaceable Parts ..... . . P7225 2.5 GHz 10X Active Probe User Manual...
  • Page 6 Table of Contents List of Figures Figure 1: P7225 Probe featuring the TekConnect Interface Figure 2: Connecting and disconnecting the probe ..Figure 3: Probe functional check connections ...
  • Page 7 ....Table 7: Certifications and compliances ....P7225 2.5 GHz 10X Active Probe User Manual...
  • Page 8 Table of Contents P7225 2.5 GHz 10X Active Probe User Manual...

  • Page 9: General Safety Summary

    Do Not Operate With Suspected Failures. If you suspect there is damage to this product, have it inspected by qualified service personnel. Do Not Operate in Wet/Damp Conditions. Do Not Operate in an Explosive Atmosphere. Keep Product Surfaces Clean and Dry. P7225 2.5 GHz 10X Active Probe User Manual...
  • Page 10 WARNING indicates an injury hazard not immediately accessible as you read the marking. CAUTION indicates a hazard to property including the product. Symbols on the Product. These symbols may appear on the product: CAUTION Refer to Manual P7225 2.5 GHz 10X Active Probe User Manual...

  • Page 11: Preface

    Preface This is the User Manual for the P7225 probe. This manual provides operating information, specifications, and a replaceable parts list. Related Manuals If you need to do a performance verification or make internal adjustments to your probe, refer to the P7225 2.5 GHz Active Probe Service Manual.

  • Page 12: Contacting Tektronix

    This phone number is toll free in North America. After office hours, please leave a voice mail message. Outside North America, contact a Tektronix sales office or distributor; see the Tektronix web site for a list of offices. P7225 2.5 GHz 10X Active Probe User Manual viii...

  • Page 13: Product Description

    Product Description The Tektronix P7225 is a 2.5 GHz, 10X active probe. The P7225 has a ≤0.8 pF input capacitance and a high input resistance (40 kΩ), to minimize circuit loading over the specified bandwidth. The small profile and low-mass head of the P7225 make probing dense circuitry by hand fast and easy.

  • Page 14: Installation

    See Figure 2. To release the probe from the host instrument, grasp the compensa- tion box, depress the latch button, and pull out the probe. Latch button Figure 2: Connecting and disconnecting the probe P7225 2.5 GHz 10X Active Probe User Manual...

  • Page 15: Options

    Product Description 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 16 Product Description P7225 2.5 GHz 10X Active Probe User Manual...

  • Page 17: Features And Accessories

    Features and Accessories The P7225 is provided with several features and accessories designed to make probing and measurement a simpler task. To familiarize yourself with these items and their uses, refer to Table 1. WARNING. To avoid injury, use care when handling accessories with sharp tips.
  • Page 18 Features and Accessories Table 1: P7225 features and standard accessories (Cont.) Feature/Accessory Description Push-in probe tip. Use the push-in probe tip for general purpose probing by hand. The push-in probe tip may also be used with the other socketed leads and adapters.
  • Page 19 Features and Accessories Table 1: P7225 features and standard accessories (Cont.) Feature/Accessory Description Three-inch ground lead . Use the three-inch ground lead for general probing. The socketed end of the lead may be connected to any of the probe tips and adapters or fitted onto 0.025 inch square pins.
  • Page 20 Features and Accessories Table 1: P7225 features and standard accessories (Cont.) Feature/Accessory Description Customizable ground lead. You can bend or Customizable shorten this ground lead wire. ground lead NOTE: To ease insertion into the ground socket of the probe, cut the tip of this ground lead wire at a 30 to 60 degree angle.
  • Page 21 Features and Accessories Table 1: P7225 features and standard accessories (Cont.) Feature/Accessory Description Square pin socket . The square pin socket is ideal for use with signal/ground pairs on 0.100 inch squareheader pins. Attach the socket by gently pressing it into the ground socket on the probe head.
  • Page 22 Features and Accessories Table 1: P7225 features and standard accessories (Cont.) Feature/Accessory Description Cable marker bands . Attach matching pairs of Cable marker the marker bands onto the cable at the head and bands compensation box of each probe. The marker bands enable quick verification of which probe is connected to which instrument channel.
  • Page 23 Features and Accessories Table 1: P7225 features and standard accessories (Cont.) Feature/Accessory Description Accessory reorder sheet. Use the accessory reorder sheet as a quick guide for ordering accessories for your probe. The sheet provides photos and part numbers for identifying your accessories.

  • Page 24: Table 2: P7225 Optional Accessories

    Features and Accessories Table 2 lists the optional accessories you can order for your P7225 probe. Table 2: P7225 optional accessories Accessory Description SureFoot probe adapter . The SureFoot adapter is an integral probe tip and miniature guide that SureFoot...
  • Page 25 Use flexible retention rings to attach the probe to the probe holder. Tektronix part number: PPM100 P7225 2.5 GHz 10X Active Probe User Manual...
  • Page 26 Use the Optional Applications Software CD that is shipped with host instruments featuring the TekConnect interface. Alternatively, you can download the software from the Tektronix website, or order the CD using the part number below. Tektronix part number: 063-3376-XX P7225 2.5 GHz 10X Active Probe User Manual...

  • Page 27: Functional Check

    Please refer to your host instrument for the exact location of the probe compensation connection. Figure 3: Probe functional check connections 1. Connect the probe to a channel on the TekConnect host instrument. 2. Set the host instrument to display the probe channel. P7225 2.5 GHz 10X Active Probe User Manual...
  • Page 28 (Connect the KlipChip to the probe tip.) 7. Set the probe offset to 0.0 V to make the host instrument display at the ground reference. 8. Adjust the V/div to keep the waveform on the screen. P7225 2.5 GHz 10X Active Probe User Manual...

  • Page 29: Configuration

    Configuration The P7225 provides the host instrument with the probe model number, serial number, and attenuation factor. When connected to a host instrument with a TekConnect Interface, display readouts are corrected for the probe attenuation factor, the instrument input is set to 50 Ω, and the coupling is set to DC.

  • Page 30: Figure 4: Dynamic And Offset Limitations

    6. Change the volts/division setting to the desired range, adjusting the 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.

  • Page 31: Operating Basics

    P7225 probe. Handling the Probe Exercise care when using and storing the P7225. The probe and cable are susceptible to damage caused by careless use. Always handle the probe using the compensation box and probe head, avoiding undue physical strain to the probe cable.

  • Page 32: Input Linear Dynamic Range

    Operating Basics Input Linear Dynamic Range The probe head amplifier used by the P7225 has a limited linear operating 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 signal input voltage to ±3.75 V.

  • Page 33: Ground Lead Length

    The series inductance added by the probe tip and ground lead can result in a resonant circuit; this circuit may cause parasitic ringing within the bandwidth of your host instrument. Refer to Figure 6. P7225 2.5 GHz 10X Active Probe User Manual...

  • Page 34: Ground Lead Inductance

    Ground Lead Inductance When you touch your probe tip to a circuit element, you are introducing a new resistance, capacitance, and inductance into the circuit. Refer to Figure 7 on page 23. P7225 2.5 GHz 10X Active Probe User Manual...

  • Page 35: Figure 7: Ground Lead Equivalent Circuit

    The low-inductance ground pogo pin described in Features and Accessories starting on page 5 can help you reduce the effects of ground lead inductance on your measurements. P7225 2.5 GHz 10X Active Probe User Manual...
  • Page 36 Operating Basics P7225 2.5 GHz 10X Active Probe User Manual...

  • Page 37: Helpful Hints

    Attach a small piece of copper clad wire on top of the IC package and connect it to the IC package ground connection. Use the low-inductance ground pogo pin or the customizable ground lead to keep the ground lead length as short as possible. P7225 2.5 GHz 10X Active Probe User Manual...

  • Page 38: Surefoot Grounding

    Use a SureFoot adapter at the end of a short ground lead to connect directly to the IC package ground. This method is preferred over using an adjacent circuit ground because it is the shortest ground path possible. P7225 2.5 GHz 10X Active Probe User Manual...

  • Page 39: Probe Tip Test Points

    NOTE. Do not use pieces of solid-core copper wire as test points. If the wire breaks off in the probe tip socket, it may be impossible to remove the wire, and it will prevent insertion of other accessory tips. P7225 2.5 GHz 10X Active Probe User Manual...
  • Page 40 Helpful Hints P7225 2.5 GHz 10X Active Probe User Manual...

  • Page 41: Appendix A: Specifications

    5.3 ns ±0.2 ns Delay Time Offset Range --10.0 V to +10.0 V System Noise 300 V or less at output of probe with probe tip grounded P7225 2.5 GHz 10X Active Probe User Manual...
  • Page 42 ±2% (of 10x actual probe gain) DC Offset Scale Accuracy ±(2% of input + (2% of offset) + 100 mV DC Voltage Measurement Accuracy, referred to input output offset + 80 mV linearity error) P7225 2.5 GHz 10X Active Probe User Manual...

  • Page 43: Figure 11: Typical Input Impedance And Phase Versus Frequency

    0 KΩ - - 110 ° 10 KHz 100 KHz 1 MHz 10 MHz 100 MHz 1 GHz 10 GHz Magnitude Frequency (Hz) Phase Figure 11: Typical input impedance and phase versus frequency P7225 2.5 GHz 10X Active Probe User Manual...

  • Page 44: Figure 12: Typical Bandwidth

    - - 20 - - 23 Gain = 20 Log - - 26 - - 29 - - 32 10 MHz 100 MHz 1 GHz 10 GHz Frequency Figure 12: Typical bandwidth P7225 2.5 GHz 10X Active Probe User Manual...

  • Page 45: Figure 13: Probe Head And Compensation Box Dimensions

    Packaged product vibration and The packaged product qualifies under the Distribution shock Cycle 1 Assurance Level II for packaged products 0 to 20 lbs. Test 2 for Warehouse and Vehicle Stacking (Compression) is omitted. P7225 2.5 GHz 10X Active Probe User Manual...

  • Page 46: Table 7: Certifications And Compliances

    Standards or description EMC compliance This product has been reviewed to the conditions and provisions of Directive 89/336EEC for products of the EN61326 product family and determined to be exempt from the EMC directive. P7225 2.5 GHz 10X Active Probe User Manual...

  • Page 47: Appendix B: User Service

    Calibration If you need to do a performance verification or make internal adjustments to your probe, refer to the P7225 2.5 GHz Active Probe Service Manual. The manual is a printable pdf file, and is available on both the Tektronix website and the Optional Applications CD.

  • Page 48: Preparation For Shipment

    2. Put the probe into an antistatic bag or wrap to protect it from dampness. 3. Place the probe into the box and stabilize it with light packing material. 4. Seal the carton with shipping tape. P7225 2.5 GHz 10X Active Probe User Manual...

  • Page 49: Appendix C: Replaceable Parts

    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 local Tektronix, Inc. service center or representative.
  • Page 50 Indented items are part of, and included with, the next higher indentation. Attaching parts must be purchased separately, unless otherwise specified. Abbreviations Abbreviations conform to American National Standards Institute (ANSI) standard Y1.1 P7225 2.5 GHz 10X Active Probe User Manual...
  • Page 51 Appendix C: Replaceable Parts P7225 2.5 GHz 10X Active Probe User Manual...

  • Page 52: Figure 15: P7225 Standard Accessories

    Appendix C: Replaceable Parts P7225 2.5 GHz 10X Active Probe User Manual...
  • Page 53 Appendix C: Replaceable Parts P7225 2.5 GHz 10X Active Probe User Manual...

  • Page 54: Figure 16: P7225 Optional Accessories

    Appendix C: Replaceable Parts P7225 2.5 GHz 10X Active Probe User Manual...
  • Page 55 Appendix C: Replaceable Parts P7225 2.5 GHz 10X Active Probe User Manual...
  • Page 56 Appendix C: Replaceable Parts P7225 2.5 GHz 10X Active Probe User Manual...

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