Tektronix P7330 User Manual
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Tektronix P7330 User Manual

Tektronix P7330 User Manual

3.5 ghz high performance differential probe
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User Manual
P7330
3.5 GHz Differential Probe
071-0758-04
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 P7330 3.5 GHz Differential Probe 071-0758-04 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, TEK, SureFoot, and TekConnect are registered trademarks of Tektronix, Inc., and KlipChip is a trademark of Tektronix, Inc.
  • Page 3 Tektronix, with shipping charges prepaid. Tektronix shall pay for the return of the product to Customer if the shipment is to a location within the country in which the Tektronix service center is located. Customer shall be responsible for paying all shipping charges, duties, taxes, and any other charges for products returned to any other locations.

  • Page 5: Preface

    P7330 3.5 GHz Differential Probe Service Manual, Tektronix part number 071-1057-XX. The manual is a printable pdf file, and is available on both the Tektronix website and the Optional Applications CD that is included with Tektronix oscilloscopes featuring the TekConnect interface.

  • Page 6: 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. P7330 3.5 GHz Differential Probe User Manual...

  • Page 7: Table Of Contents

    ......Appendix C: Replaceable Parts ..... . . P7330 3.5 GHz Differential Probe User Manual...
  • Page 8 Table of Contents List of Figures Figure 1: P7330 differential probe featuring the TekConnect Interface ......
  • Page 9 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. P7330 3.5 GHz Differential 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 P7330 3.5 GHz Differential Probe User Manual...

  • Page 11: Getting Started

    Getting Started The P7330 is a high-bandwidth (3.5 GHz) active differential probe with a miniaturized probe head design. The probe has low circuit loading, high common-mode rejection, and comes with a variety of accessories for connecting to surface-mount devices and other components.

  • Page 12: Figure 2: Connecting And Disconnecting The Probe

    See Figure 2. To release the probe from the oscilloscope, grasp the compensation box, press the latch button, and pull out the probe. Latch button Figure 2: Connecting and disconnecting the probe P7330 3.5 GHz Differential Probe User Manual...

  • Page 13: Functional Check

    Y-lead adapter to the square pin adapter. Plug the SMT KlipChips into the Y-lead adapter. 4. Connect the SMT KlipChips to the PROBE COMPENSATION connections on the oscilloscope. 5. Adjust the oscilloscope to display a stable calibration waveform. P7330 3.5 GHz Differential Probe User Manual...

  • Page 14: Options

    9. Adjust the probe offset. The displayed waveform should vary between approximately +1.0 V and - - 1.0 V. Options The following options are available when ordering the P7330 probe: H Option D1 - - Calibration Data H Option C3 - - 3 years Calibration Service...

  • Page 15: Features And Standard Accessories

    Getting Started Features and Standard Accessories Table 1 shows the features and standard accessories of the P7330 differential probe. Table 1: P7330 features and standard accessories Feature/Accessory Description TekConnect Interface. The TekConnect Interface provides a communication path between the probe and the oscilloscope.
  • Page 16 Getting Started Table 1: P7330 features and standard accessories (Cont.) Feature/Accessory Description Variable spacing adapter (4 ea). The variable spacing adapter fits over the probe tip. Push the adapter onto the probe tip until it seats against the probe head.
  • Page 17 Getting Started Table 1: P7330 features and standard accessories (Cont.) Feature/Accessory Description TwinFoot adapter (4 ea). Use the TwinFoot adapter to probe two adjacent leads on a surface-mount integrated circuit. The TwinFoot adapter connects to the probe through the square pin adapter.
  • Page 18 Getting Started Table 1: P7330 features and standard accessories (Cont.) Feature/Accessory Description Plastic accessory box. Use the plastic box to store the probe accessories when not in use. Tektronix part number: 006-7164-00 Instrument case. The instrument case protects the probe from harsh environments and provides room for storing optional accessories.

  • Page 19: Optional Accessories

    The adapter maintains a balanced 55 Ω signal path and can be used in both single-ended and differential modes. Tektronix part number: 679-5027-00 P7330 3.5 GHz Differential Probe User Manual...
  • Page 20 Calibration software and instructions. 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...

  • Page 21: Operating Basics

    (CMRR), see the Reference section on page 17. The P7330 probe design is optimized for high bandwidth, low capacitance applications; it is not a general purpose probe. The probe head and tips are miniaturized for electrical characteristics and access to dense circuitry, and must be handled carefully.

  • Page 22: Input Voltage Limits

    The maximum input voltage is the maximum voltage to ground that the inputs can withstand without damaging the probe input circuitry. CAUTION. To avoid damaging the inputs of the P7330 differential probe, do not apply more than ±15 V (DC + peak AC) between each input and ground.

  • Page 23: Probing Techniques To Maximize Cmrr

    Figure 5: Using the variable spacing adapter IC leads being probed TwinFoot adapter Square pin adapter Conductive side of probe tip Probe Insulated side of probe tip Figure 6: Using the TwinFoot adapter P7330 3.5 GHz Differential Probe User Manual...

  • Page 24: Input Impedance And Probe Loading

    When you connect the probe inputs to a circuit, you are introducing a new resistance, capacitance, and inductance into the circuit. Each input of the P7330 differential probe has a characteristic input impedance of 50 kΩ to ground in parallel with less than 0.4 pF. See Figure 7.

  • Page 25: Probe Grounding

    There are some applications that may require a ground reference connection to maintain measurement accuracy. Generally this is necessary when probing circuits which are fully isolated from ground, such as battery operated devices. P7330 3.5 GHz Differential Probe User Manual...

  • Page 26: Electrical Effects Of Accessories

    The recommended method for hands-free probing is to use the probe only (without adapters), with a probe positioner such as a Tektronix PPM203B. If you need a tip space between 0.020 and 0.180 inches apart, use the variable spacing adapter and the probe positioner.

  • Page 27: Reference

    Voltage that is common to both inputs is often referred to as the Common-Mode Voltage (V ) and voltage that is different as the Differential-Mode Voltage (V P7330 3.5 GHz Differential Probe User Manual...

  • Page 28: Common-Mode Rejection Ratio

    CMRR generally is highest (best) at DC and degrades with increasing frequency. Assessing CMRR Error Figure 12 on page 24 shows the CMRR of the P7330 differential probe. This derating chart assumes a common-mode signal that is sinusoidal. P7330 3.5 GHz Differential Probe User Manual...

  • Page 29: Input Impedance Effects On Cmrr

    Figure 11. Twisting the input leads together does increase capacitance that may degrade high-frequency performance. You should take into account any effects caused by the extended leads when you take a measure- ment. P7330 3.5 GHz Differential Probe User Manual...

  • Page 30: Extending The Ground Lead

    Extending the ground lead will have little, if any, affect on your measurements. In most circuits, the ground path from the differential source has sufficiently high impedance to damp out any ringing caused by lead inductance. P7330 3.5 GHz Differential Probe User Manual...

  • Page 31: Appendix A: Specifications

    Appendix A: Specifications The specifications in Tables 3 through 6 apply to a P7330 probe installed on a TDS7404 oscilloscope. The probe must have a warm-up period of at least 20 minutes and be in an environment that does not exceed the limits described in Table 3. Specifications for the P7330 differential probe fall into three categories: warranted, typical, and nominal characteristics.
  • Page 32 ±1% or less of dynamic range Linearity Common-mode signal range +5 V to --4 V ≥60 dB at DC Common-mode rejection ratio ≥55 dB at 1 MHz ≥45 dB at 30 MHz ≥25 dB at 1 GHz P7330 3.5 GHz Differential Probe User Manual...
  • Page 33 2% of input voltage offset gain error = 2% of effective offset at probe tip output zero = 50 mV effective at probe tip linearity error = 1.0% of 4.0 V dynamic range (40.0 mV) P7330 3.5 GHz Differential Probe User Manual...

  • Page 34: Figure 12: Typical Common-Mode Gain

    The graph in Figure 13 represents simulation results of a first order model of the probe input. Impedance (Ω) 100 k 10 k 10 M 100 M Frequency (Hz) Figure 13: Typical differential input impedance vs frequency P7330 3.5 GHz Differential Probe User Manual...

  • Page 35: Figure 14: Probe Head And Compensation Box Dimensions

    (.300 in) 58.42 mm (2.300 in) 5.08 mm (.200 in) 43.8 mm (1.725 in) 2.54 mm (.100 in) 63.5 mm (2.500 in) 91.5 mm (3.600 in) Figure 14: Probe head and compensation box dimensions P7330 3.5 GHz Differential Probe User Manual...
  • Page 36 Nominal characteristics (Table 6) describe guaranteed traits, but the traits do not have tolerance limits. Table 6: Nominal electrical characteristics Input configuration Differential (two inputs, + and -- ), with case ground Attenuation Input coupling Terminate output into 50 Ω Termination P7330 3.5 GHz Differential Probe User Manual...

  • Page 37: Appendix B: User Service

    Appendix B: User Service This section details the maintenance for the P7330 differential probe. Inspection and Cleaning Protect the probe from adverse weather conditions. The probe is not waterproof. CAUTION. To prevent damage to the probe, do not expose it to sprays, liquids, or solvents.
  • Page 38 P7330 3.5 GHz Differential Probe Service Manual, Tektronix part number 071-1057-XX. The manual is a printable pdf file, and is available on both the Tektronix website and the Optional Applications CD that is included with Tektronix oscilloscopes featuring the TekConnect interface.

  • Page 39: Appendix C: Replaceable Parts

    Appendix C: Replaceable Parts This section contains a list of replaceable parts for the P7330 differential 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 40 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 P7330 3.5 GHz Differential Probe User Manual...

  • Page 41: Figure 15: P7330 Replaceable Parts

    Appendix C: Replaceable Parts P7330 3.5 GHz Differential Probe User Manual...
  • Page 42 Appendix C: Replaceable Parts P7330 3.5 GHz Differential Probe User Manual...

  • Page 43: Figure 16: P7330 Standard Accessories

    Appendix C: Replaceable Parts P7330 3.5 GHz Differential Probe User Manual...
  • Page 44 Appendix C: Replaceable Parts P7330 3.5 GHz Differential Probe User Manual...

  • Page 45: Figure 17: P7330 Optional Accessories

    Appendix C: Replaceable Parts P7330 3.5 GHz Differential Probe User Manual...
  • Page 46 Appendix C: Replaceable Parts P7330 3.5 GHz Differential Probe User Manual...
  • Page 47 Appendix C: Replaceable Parts P7330 3.5 GHz Differential Probe User Manual...
  • Page 48 Appendix C: Replaceable Parts P7330 3.5 GHz Differential Probe User Manual...

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