Tektronix P7350 Instruction Manual
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Tektronix P7350 Instruction Manual

Tektronix P7350 Instruction Manual

5 ghz differential probe
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Instruction Manual
P7350
5 GHz Differential Probe
071-1238-00
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 Instruction Manual P7350 5 GHz Differential Probe 071-1238-00 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

    Preface This is the Instruction Manual for the P7350 differential probe. This manual provides operating information, specifications, and a replaceable parts list. P7350 5 GHz Differential Probe Instruction Manual...

  • 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. P7350 5 GHz Differential Probe Instruction Manual...

  • Page 7: Table Of Contents

    ......Appendix D: Replaceable Parts ..... . . P7350 5 GHz Differential Probe Instruction Manual...
  • Page 8 Table of Contents List of Figures Figure 1: P7350 differential probe featuring the TekConnect interface ......

  • 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. P7350 5 GHz Differential Probe Instruction 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 P7350 5 GHz Differential Probe Instruction Manual...

  • Page 11: Service Safety Summary

    Service Safety Summary and the General Safety Summary before performing any service procedures. Do Not Service Alone. Do not perform internal service or adjustments of this product unless another person capable of rendering first aid and resuscitation is present. P7350 5 GHz Differential Probe Instruction Manual...
  • Page 12 Service Safety Summary P7350 5 GHz Differential Probe Instruction Manual viii...

  • Page 13: Getting Started

    Getting Started The P7350 is a high-bandwidth (5 GHz typical), active differential probe with a miniaturized probe head design. The probe has low circuit loading, high common-mode rejection, and ships with a variety of accessories for connecting to surface-mount devices and other components.

  • Page 14: Figure 2: Connecting And Disconnecting The Probe

    See Figure 2. To release the probe from the host instrument, grasp the compensa- tion box, press the latch button, and pull out the probe. Latch button Figure 2: Connecting and disconnecting the probe P7350 5 GHz Differential Probe Instruction Manual...

  • Page 15: 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. P7350 5 GHz Differential Probe Instruction Manual...

  • Page 16: Options

    9. Adjust the probe offset. The displayed waveform should vary between approximately +1.25 V and - - 1.25 V. Options The following options are available when ordering the P7350 probe: H Option D1- - Calibration Data Report H Option D3- - Calibration Data Report, 3 years (with Option C3)

  • Page 17: Features And Standard Accessories

    Getting Started Features and Standard Accessories Table 1 shows the features and standard accessories of the P7350 differential probe. Table 1: P7350 features and standard accessories Feature/Accessory Description TekConnect interface. The TekConnect interface provides a communication path between the probe and the oscilloscope.
  • Page 18 Getting Started Table 1: P7350 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 19 Getting Started Table 1: P7350 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 20 Getting Started Table 1: P7350 features and standard accessories (Cont.) Feature/Accessory Description Cable marker bands Cable marker bands (10 ea). Attach matching pairs of the marker bands onto the cable at the head and compensation box of each probe. The marker bands enable quick verification of which probe is connected to which instrument channel.

  • Page 21: Optional Accessories

    Tektronix part number: 067-0422-XX Probe calibration fixture. Use the probe calibration fixture to perform some of the calibration procedures. The calibration fixture connects to signal sources used to test the probe characteristics. Tektronix part number: 067-0419-XX P7350 5 GHz Differential Probe Instruction Manual...
  • Page 22 Getting Started P7350 5 GHz Differential Probe Instruction Manual...

  • Page 23: Operating Basics

    (CMRR), see the Reference section on page 17. The P7350 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 24: 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 P7350 differential probe, do not apply more than ±15 V (DC + peak AC) between each input and ground.

  • Page 25: 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 P7350 5 GHz Differential Probe Instruction Manual...

  • Page 26: 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 P7350 differential probe has a characteristic input impedance of 50 kΩ to ground in parallel with less than 0.4 pF. See Figure 7.

  • Page 27: 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. P7350 5 GHz Differential Probe Instruction Manual...

  • Page 28: 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 PPM100 or PPM203B. If you need a tip space between 0.020 and 0.180 inches apart, use the variable spacing adapter and the probe...

  • Page 29: 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 P7350 5 GHz Differential Probe Instruction Manual...

  • Page 30: Figure 10: Simplified Model Of A Differential Amplifier

    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 P7350 differential probe. This derating chart assumes a common-mode signal that is sinusoidal. P7350 5 GHz Differential Probe Instruction Manual...

  • Page 31: Extending The Input Leads

    Figure 11 on page 20. 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. P7350 5 GHz Differential Probe Instruction Manual...

  • Page 32: 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. P7350 5 GHz Differential Probe Instruction Manual...

  • Page 33: Appendix A: Specifications

    Appendix A: Specifications The specifications in Tables 3 through 5 apply to a P7350 probe installed on a TDS6604 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 P7350 differential probe fall into three categories: warranted, typical, and nominal characteristics.
  • Page 34 Rise time (probe only), 20--80% 250 mV step ±2.5 V Differential signal range ±1.25 V Differential offset range ±1% or less of dynamic range Linearity Common-mode signal range +6.25 V to --5.0 V P7350 5 GHz Differential Probe Instruction Manual...
  • Page 35 46 nV/√Hz @100 MHz ±2.0% DC Offset Scale Accuracy (gain of offset signal path) DC Offset Drift 150 V/°C or less at output of probe 0.94 mV/°C or less displayed on screen with TekConnect interface P7350 5 GHz Differential Probe Instruction Manual...

  • Page 36: Figure 12: Typical Common- And Differential-Mode Gain Plots

    - - 70 Common Mode Gain - - 80 - - 90 100 kHz 1 MHz 10 MHz 100 MHz 1 GHz 6 GHz Frequency Figure 12: Typical common- and differential-mode gain plots P7350 5 GHz Differential Probe Instruction Manual...

  • Page 37: Figure 13: Typical Differential Input Impedance Vs Frequency

    - - 20 - - 22 Gain = 20 Log - - 24 - - 26 - - 28 1 MHz 10 MHz 100 MHz 1 GHz 10 GHz Frequency Figure 14: Typical bandwidth P7350 5 GHz Differential Probe Instruction Manual...
  • Page 38 6.25 X Input coupling Terminate output into 50 Ω Termination All TekConnect host instruments recognize this gain setting and adjust the Volts/Div setting to correspond to a normal 1- 2- 5 sequence of gains. P7350 5 GHz Differential Probe Instruction Manual...

  • Page 39: Figure 15: Probe Head And Compensation Box Dimensions

    (2.55 in) 2.286 mm 5.08 mm (0.090 in) 43.8 mm (0.200 in) (1.725 in) 2.54 mm (0.100 in) 63.5 mm (2.500 in) 91.5 mm (3.600 in) Figure 15: Probe head and compensation box dimensions P7350 5 GHz Differential Probe Instruction Manual...

  • Page 40: Figure 16: Variable Spacing Adapter Dimensions

    4.57 mm 4.45 mm 2.13 mm (0.180 in) (0.175 in) (0.084 in) 5.80 mm (0.228 in) 2.80 mm (0.110 in) 8.15 mm 4.62 mm (0.321 in) (0.182 in) Figure 17: Square pin adapter dimensions P7350 5 GHz Differential Probe Instruction Manual...

  • Page 41: Appendix B: Performance Verification

    Dual Power Supply 5.0 VDC at 1 mA Tektronix PS280 DMM (2), with leads 0.1 mV resolution Fluke 87 or equivalent BNC, 50 Ω ±0.05 Ω Feedthrough Termination 011-0129-00 Coaxial cable Male-to-Male SMA 012-0649-00 P7350 5 GHz Differential Probe Instruction Manual...
  • Page 42 Adapter BNC Female-to-Dual 103-0090-00 Banana Adapter Square pin adapter 016-1884-00 Adapter Y-lead adapter 196-3468-00 Adapters (2) KlipChip adapter 206-0364-00 SMA torque wrench 5/16-inch, 7 in-lb. Nine-digit part numbers (XXX-XXXX-XX) are Tektronix part numbers. P7350 5 GHz Differential Probe Instruction Manual...

  • Page 43: Figure 18: Tekconnect Interface Calibration Adapter

    TekConnect probe is connected to the adapter and identified by the oscilloscope. When a probe is detected through the adapter, the Volts/div readout on the oscilloscope displays ##. Refer to Table 8 on page 32 for detailed features of the calibration adapter. P7350 5 GHz Differential Probe Instruction Manual...
  • Page 44 Measure the offset voltage using a DVM, BNC Offset voltage coaxial cable and BNC-to-dual-banana jack. output Signal out. The SMA connector on the rear of the box allows for direct monitoring of the probe signal. Signal out P7350 5 GHz Differential Probe Instruction Manual...

  • Page 45: Figure 19: Probe Calibration Fixture

    The fixture is designed to be used with a probe positioner, such as a Tektronix PPM203B. Figure 19: Probe Calibration Fixture Using the Probe Calibration Fixture 1.

  • Page 46: Figure 20: Probe Calibration Fixture Test Points

    1. Connect the probe calibration adapter to the oscilloscope. 2. Connect the probe to the probe calibration adapter. 3. Turn on the oscilloscope and enable the channel. 4. Allow 30 minutes for the equipment to warm up. P7350 5 GHz Differential Probe Instruction Manual...

  • Page 47: Figure 21: Setup For The Output Offset Voltage Test

    NOTE. Leave the offset switch in the ground position for all of the performance verification checks. 3. Set the multimeter to read DC volts. ± 4. Verify that the output voltage is 0 V, 10 mV. 5. Record the results on the test record. P7350 5 GHz Differential Probe Instruction Manual...

  • Page 48: Figure 22: Dc Gain Accuracy Setup

    50 Ω Precision termination BNC-SMA adapter Calibration Power supply Power supply adapter P7350 Probe KlipChip adapters Black (- - ) Red (+) Y-lead adapter Square pin adapter Figure 22: DC Gain Accuracy setup P7350 5 GHz Differential Probe Instruction Manual...
  • Page 49 1. Connect the test equipment as shown in Figure 23 on page 38. CAUTION. Use care when working with SMA connectors: support equipment to avoid mechanical strain on the connectors, and use a torque wrench to tighten connections to 7 in-lbs. P7350 5 GHz Differential Probe Instruction Manual...

  • Page 50: Figure 23: Test System Rise Time Setup

    2. Set the CSA/TDS8000 oscilloscope trigger to internal clock. NOTE. The CSA/TDS8000 oscilloscope is used for taking the measurements in these procedures. All references to oscilloscope adjustments refer to the CSA/TDS8000. The TDS7404 oscilloscope is only used to power the probe. P7350 5 GHz Differential Probe Instruction Manual...
  • Page 51 11. Secure the probe head in the probe positioner. The test setup should now be connected as shown in Figure 24 on page 40. P7350 5 GHz Differential Probe Instruction Manual...

  • Page 52: Figure 24: Test System Rise Time Setup With Probe

    14. Using the probe positioner, probe the DM test points on the probe calibration fixture. Compare your display to Figure 25 on page 41 to verify that you have a valid connection with both pins. P7350 5 GHz Differential Probe Instruction Manual...

  • Page 53: Figure 25: Verifying Both Probe Pins Are Contacting The Dm Test Points

    Record the rise time as t s+p. 18. Calculate the probe rise time using the following formula: − t (s+p) 19. Record the calculated probe rise time on the test record. P7350 5 GHz Differential Probe Instruction Manual...
  • Page 54 Date of Calibration: Technician: Performance test Minimum Incoming Outgoing Maximum -- 10 mV ________ ________ + 10 mV Output offset voltage DC gain accuracy 0.1568 ________ ________ 0.1632 Rise time ________ ________ 100 ps P7350 5 GHz Differential Probe Instruction Manual...

  • Page 55: Appendix C: Maintenance

    Appendix C: Maintenance This section details the maintenance for the P7350 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 56 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. P7350 5 GHz Differential Probe Instruction Manual...

  • Page 57: Appendix D: Replaceable Parts

    Appendix D: Replaceable Parts This section contains a list of replaceable parts for the P7350 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 58 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 P7350 5 GHz Differential Probe Instruction Manual...

  • Page 59: Figure 26: P7350 Replaceable Parts

    Appendix D: Replaceable Parts P7350 5 GHz Differential Probe Instruction Manual...
  • Page 60 Appendix D: Replaceable Parts P7350 5 GHz Differential Probe Instruction Manual...

  • Page 61: Figure 27: P7350 Standard Accessories

    Appendix D: Replaceable Parts P7350 5 GHz Differential Probe Instruction Manual...
  • Page 62 Appendix D: Replaceable Parts P7350 5 GHz Differential Probe Instruction Manual...

  • Page 63: Figure 28: P7350 Optional Accessories

    Appendix D: Replaceable Parts P7350 5 GHz Differential Probe Instruction Manual...
  • Page 64 Appendix D: Replaceable Parts P7350 5 GHz Differential Probe Instruction Manual...
  • Page 65 Appendix D: Replaceable Parts P7350 5 GHz Differential Probe Instruction Manual...
  • Page 66 Appendix D: Replaceable Parts P7350 5 GHz Differential Probe Instruction Manual...
  • Page 67 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Tektronix P7350...

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