Tektronix TAP3500 Instruction Manual
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Tektronix TAP3500 Instruction Manual

2.5 ghz, 3.5 ghz, and 4 ghz probes
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TAP2500, TAP3500, and TAP4000
2.5 GHz, 3.5 GHz, and 4 GHz Probes
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Instruction Manual
*P071183602*
071-1836-02

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  • Page 1 TAP2500, TAP3500, and TAP4000 2.5 GHz, 3.5 GHz, and 4 GHz Probes Instruction Manual *P071183602* 071-1836-02...
  • Page 3 TAP2500, TAP3500, and TAP4000 2.5 GHz, 3.5 GHz, and 4 GHz Probes Instruction Manual www.tek.com 071-1836-02...
  • Page 4 Copyright © Tektronix. All rights reserved. Licensed software products are owned by Tektronix or its subsidiaries or suppliers, and are protected by national copyright laws and international treaty provisions. Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supersedes that in all previously published material.
  • Page 5 Warranty Tektronix warrants that this product will be free from defects in materials and workmanship for a period of one (1) year from the date of shipment. If any such product proves defective during this warranty period, Tektronix, at its option, either will repair the defective product without charge for parts and labor, or will provide a replacement in exchange for the defective product.

  • Page 7: Table Of Contents

    Probe head assembly....................... . TAP2500, TAP3500, and TAP4000 Instruction Manual...
  • Page 8 DC gain accuracy ........................TAP2500, TAP3500, and TAP4000 Instruction Manual...
  • Page 9 Cleaning..........................Index TAP2500, TAP3500, and TAP4000 Instruction Manual...
  • Page 10 Table of Contents TAP2500, TAP3500, and TAP4000 Instruction Manual...

  • Page 11: General Safety Summary

    Connect the probe reference lead to earth ground only. Do not apply a potential to any terminal, including the common terminal, that exceeds the maximum rating of that terminal. TAP2500, TAP3500, and TAP4000 Instruction Manual...
  • Page 12 Avoid exposed circuitry. Do not touch exposed connections and components when power is present. Do not operate in wet/damp conditions. Do not operate in an explosive atmosphere. Keep product surfaces clean and dry. TAP2500, TAP3500, and TAP4000 Instruction Manual...
  • Page 13 DANGER indicates an injury hazard immediately accessible as you read the marking. WARNING indicates an injury hazard not immediately accessible as you read the marking. CAUTION indicates a hazard to property including the product. TAP2500, TAP3500, and TAP4000 Instruction Manual...
  • Page 14 General safety summary The following symbol(s) may appear on the product: viii TAP2500, TAP3500, and TAP4000 Instruction Manual...

  • Page 15: Service Safety Summary

    Dangerous voltages or currents may exist in this product. Disconnect power, remove battery (if applicable), and disconnect test leads before removing protective panels, soldering, or replacing components. To avoid electric shock, do not touch exposed connections. TAP2500, TAP3500, and TAP4000 Instruction Manual...

  • Page 16: Environmental Considerations

    This symbol indicates that this product complies with the applicable European Union requirements according to Directives 2012/19/EU and 2006/66/EC on waste electrical and electronic equipment (WEEE) and batteries. For information about recycling options, check the Tektronix Web site (www.tek.com/productrecycling). TAP2500, TAP3500, and TAP4000 Instruction Manual...

  • Page 17: Preface

    Preface This manual describes the installation and operation of the TAP2500, TAP3500, and TAP4000 active probes. Basic probe operations and concepts are presented in this manual. The DPO7000 series oscilloscope and the TAP2500 probe is used in all illustrations in this manual, unless noted otherwise.

  • Page 18: Returning The Probe For Servicing

    Preface Returning the probe for servicing If your probe requires servicing, you must return the probe to Tektronix. If the original packaging is unfit for use or not available, use the following packaging guidelines: Preparation for Shipment 1. Use a corrugated cardboard shipping...

  • Page 19: Key Features

    The TAP2500, TAP3500, and TAP4000 active probes enable you to make accurate measurements with minimal circuit loading from DC to 2.5 GHz, 3.5 GHz, and 4 GHz respectively, using oscilloscopes featuring the new Tektronix TekVPI oscilloscope interface. Key features include: Bandwidth DC to ≥2.5 GHz (TAP2500)

  • Page 20: Installation

    The probe snaps when fully engaged. When the probe is connected, the host instrument reads information from the probe and identifies the device. 2. To disconnect, press the latch release button and pull away from the instrument. TAP2500, TAP3500, and TAP4000 Instruction Manual...

  • Page 21: Probe Controls And Indicators

    When the probe is powered on, the multicolor Status LED: Glows green after successfully completing the power-on self test routine. The probe is in normal operating mode. Glows red if an error condition exists. (See page 60, Error condition.) TAP2500, TAP3500, and TAP4000 Instruction Manual...
  • Page 22 1. Press the probe Menu button to display the Probe Control screen on the oscilloscope. 2. Use the touch-screen buttons on the instrument to set the probe parameters. 3. Press the probe Menu button again to close the Probe Control screen. TAP2500, TAP3500, and TAP4000 Instruction Manual...
  • Page 23 1. Press the probe Menu button to display the Probe Control screen on the oscilloscope. 2. Short the probe tip to ground. 3. Press the AutoZero button on the instrument to execute the AutoZero routine. TAP2500, TAP3500, and TAP4000 Instruction Manual...

  • Page 24: Functional Check

    Tektronix 6 Series MSO Y-Lead adapter 0.25-in square pins for probe tip 196-3457-XX connections SMT KlipChip adapters (2) 0.25-in square pins-to-mini clips 206-0569-XX Nine-digit part numbers (xxx-xxxx-xx) are Tektronix part numbers. Standard probe accessory TAP2500, TAP3500, and TAP4000 Instruction Manual...
  • Page 25 KlipChips to connect the probe tip to the PROBE COMP terminals on the oscilloscope. 3. Press AUTOSET (or adjust the oscilloscope) to display the calibration waveform. A stable waveform indicates that your probe is functioning correctly. TAP2500, TAP3500, and TAP4000 Instruction Manual...

  • Page 26: Calibration

    The equipment must be warmed up for 20 minutes, and the calibration status of the host instrument must be pass. Required equipment The required equipment for calibration is the same as for the functional check. (See page 6, Required equipment.) TAP2500, TAP3500, and TAP4000 Instruction Manual...

  • Page 27: Test Procedure

    2. In the Calibration box, check that Pass is displayed in the Status field. If it is not, disconnect all probes and signal sources from the oscilloscope, and run the Signal Path Compensation routine (see next step). TAP2500, TAP3500, and TAP4000 Instruction Manual...
  • Page 28 Calibration 3. Connect the probe to the oscilloscope PROBE COMP connector as shown. 4. From the Vertical menu, select Probe Cal. TAP2500, TAP3500, and TAP4000 Instruction Manual...
  • Page 29 5. When the Probe Setup screen appears, select Clear ProbeCal, and then select Calibrate Probe. The probe calibration routine begins. When the routine completes, a notifier appears. Close the notifier and begin using your probe. TAP2500, TAP3500, and TAP4000 Instruction Manual...

  • Page 30: Basic Operation

    0.025-inch pins for direct access. 2. The ground socket provides a short ground path for high-fidelity ground connections. 3. The stabilization notch permits you to use adjacent pins to reduce stresses on the probe and pins. TAP2500, TAP3500, and TAP4000 Instruction Manual...

  • Page 31: Probe Input

    The probe head amplifier used by the probe has a limited linear operating range. To keep the input linearity error less than 1% you must limit the signal input voltage to ±4 V (including any DC offset). TAP2500, TAP3500, and TAP4000 Instruction Manual...
  • Page 32 Basic operation Figure 1: Dynamic and Offset Limitations TAP2500, TAP3500, and TAP4000 Instruction Manual...

  • Page 33: Probe Offset

    1. Use the vertical position control to set a zero reference level on the oscilloscope display. 2. Set the oscilloscope coupling to DC and 5 V/div. This sets the oscilloscope to display the full offset dynamic range of the probe. TAP2500, TAP3500, and TAP4000 Instruction Manual...
  • Page 34 ±4V, (the linear operating range of the probe), not the ±10V offset range of the probe. However, when you apply ±10V to the probe input, the probe offset control can zero this offset. TAP2500, TAP3500, and TAP4000 Instruction Manual...

  • Page 35: Accessories And Options

    Push the tip into the socket until it is seated. Either end of the tip may be used. Do not force the tip. Also, be careful not to injure yourself on the sharp point. Reorder Tektronix part number: 131-5638-11 qty. 10 TAP2500, TAP3500, and TAP4000 Instruction Manual...
  • Page 36 SureToe adapters can be used with any of the socketed accessory leads. Four SureToe adapters are included with the probe. Reorder Tektronix part number: 131-6254-XX qty. 4 TAP2500, TAP3500, and TAP4000 Instruction Manual...
  • Page 37 To attach, press the pogo pin into the probe head ground socket. To maintain signal fidelity while probing, use as short a ground path as possible. (See page 30, Ground lead length.) Reorder Tektronix part number: 016-1772-10 qty. 10 TAP2500, TAP3500, and TAP4000 Instruction Manual...
  • Page 38 60° angle to ease insertion into the ground socket of the probe. To maintain signal fidelity while probing, use as short a ground path as possible. (See page 30, Ground lead length.) Reorder Tektronix part number: 196-3482-XX qty. 5 TAP2500, TAP3500, and TAP4000 Instruction Manual...
  • Page 39 The right-angle adapter can be used directly with the probe head, or attached to the Y-lead adapter or ground leads. Attach the right-angle adapter the same way as the push-in probe tip. Reorder Tektronix part number: 016-1774-XX qty. 10 TAP2500, TAP3500, and TAP4000 Instruction Manual...
  • Page 40 When selecting the grounding connection, maintain as short a ground path as possible. (See page 30, Ground lead length.) Reorder Tektronix part number: 196-3456-XX Kit includes: Y-lead adapter, qty. 2 Three-in ground leads, qty. 3 TAP2500, TAP3500, and TAP4000 Instruction Manual...
  • Page 41 The KlipChip body freely turns, allowing better probe orientation. To reduce stress and provide a lower profile on components being tested, the flexible sleeve of the KlipChip bends up to a 35° angle. Reorder Tektronix part number: 206-0569-XX qty. 1 TAP2500, TAP3500, and TAP4000 Instruction Manual...
  • Page 42 2. Connect the probe to the channel that matches the color of the band. Reorder Tektronix part number: 016-1315-XX qty. Set of 5 colors TAP2500, TAP3500, and TAP4000 Instruction Manual...
  • Page 43 1. Place the probe, accessories, and manual in the carrying case. 2. Close the carrying case to transport the accessories to another location or for storage. Reorder Tektronix part number: 016-1952-XX TAP2500, TAP3500, and TAP4000 Instruction Manual...
  • Page 44 Accessories and options Instruction manual The instruction manual provides instructions for operating and maintaining the TAP2500, TAP3500, and TAP4000 active probes. Store the instruction manual in the probe case for easy reference. Tektronix part number: 071-1836-XX (English) 071-1884-XX (Japanese) 071-1885-XX (S. Chinese)

  • Page 45: Optional Accessories

    013-0309-XX qty. 2 SMA-to-Probe Tip Adapter Use the adapter to connect the probe to SMA cables and for calibration and performance verification. The adapter includes a 50 Ω SMA termination. Order Tektronix part number: 015-0678-XX TAP2500, TAP3500, and TAP4000 Instruction Manual...
  • Page 46 TekVPI Calibration Fixture The calibration fixture is required to do a performance verification on the probe. It provides an SMA connector in the probe signal path for internal probe measurements. Order Tektronix part number: 067-1701-XX TAP2500, TAP3500, and TAP4000 Instruction Manual...

  • Page 47: Options

    Option D5. Calibration Data Report, 5 years (with Option C5) Option R3. Repair Service 3 years Option R5. Repair Service 5 years Manual Options Option L0. English language Instruction Manual Option L5. Japanese language Instruction Manual Option L7. Simplified Chinese language Instruction Manual TAP2500, TAP3500, and TAP4000 Instruction Manual...

  • Page 48: Probing Principles

    (See the illustration for the effects of lead length on waveform distortion.) 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 oscilloscope. TAP2500, TAP3500, and TAP4000 Instruction Manual...

  • Page 49: Ground Lead Inductance

    The low-inductance ground contacts described in Accessories can help you reduce the effects of ground lead inductance on your measurements. TAP2500, TAP3500, and TAP4000 Instruction Manual...

  • Page 50: Low-Inductance Grounding

    2. Connect the copper clad to the package ground connection. 3. Use the low-inductance ground lead to keep the ground lead length as short as possible. Quick tip This method is very useful when making many measurements on the same package. TAP2500, TAP3500, and TAP4000 Instruction Manual...

  • Page 51: Surefoot™ Grounding

    2. Attach a SureFoot adapter at the end of the ground lead. 3. Connect the SureFoot adapter directly to the package ground. This method is preferred over using an adjacent circuit ground because it is the shortest ground path possible. TAP2500, TAP3500, and TAP4000 Instruction Manual...

  • Page 52: Probe Tip Test Points

    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. TAP2500, TAP3500, and TAP4000 Instruction Manual...

  • Page 53: Probe Tip Stabilization

    This prevents unnecessary force from being applied directly to the probe tip or pins. The signal-ground adapter can rest on the stabilized pin without a risk of its moving out of place. TAP2500, TAP3500, and TAP4000 Instruction Manual...

  • Page 54: Specifications

    (See Table 1.) The Signal Path Compensation (SPC) has been run on the oscilloscope before testing the probe specifications. Specifications for the TAP2500, TAP3500, and TAP4000 active probes fall into three categories: warranted, typical, and nominal characteristics.

  • Page 55: Warranted Characteristics

    Warranted characteristics describe guaranteed performance within tolerance limits or certain type-tested requirements. Warranted characteristics that have checks in the Performance Verification section are marked with the symbol. The Warranted, Typical, and Mechanical characteristics apply to the TAP2500, TAP3500, and TAP4000 probes unless noted otherwise. Table 1: Warranted electrical characteristics Characteristic Description 10:1 ±2% (excludes offset error)

  • Page 56: Typical Characteristics

    ±0.1% or less over a dynamic range of -3.75 V to +3.75 V ±1.0% or less over a dynamic range of -4.0 V to +4.0 V. DC offset drift 1.5 mV/ °C or less displayed on screen Signal delay 5.3 ns ±0.2 ns TAP2500, TAP3500, and TAP4000 Instruction Manual...
  • Page 57 Specifications Figure 2: TAP2500 Typical bandwidth TAP2500, TAP3500, and TAP4000 Instruction Manual...
  • Page 58 Specifications Figure 3: TAP3500 Typical bandwidth TAP2500, TAP3500, and TAP4000 Instruction Manual...
  • Page 59 Specifications Figure 4: TAP4000 Typical bandwidth TAP2500, TAP3500, and TAP4000 Instruction Manual...
  • Page 60 Specifications Figure 5: Typical input impedance and phase versus frequency TAP2500, TAP3500, and TAP4000 Instruction Manual...
  • Page 61 19.43 mm × 3.30 mm × 7.6 mm (0.765 in × 0.130 in × 0.300 in) Dimensions, cable length 1.3 m (51 in) (from the probe head to the compensation box) Unit weight 1.55 kg (3.44 lbs) (probe, accessories and packaging) TAP2500, TAP3500, and TAP4000 Instruction Manual...

  • Page 62: Nominal Characteristics

    Nominal characteristics describe guaranteed traits, but the traits do not have tolerance limits. Table 4: Nominal electrical characteristics Characteristic Description Input coupling Termination Terminate output into 50 Ω Compatibility Oscilloscopes equipped with the TekVPI interface Pollution Degree 2, Indoor use only TAP2500, TAP3500, and TAP4000 Instruction Manual...

  • Page 63: Performance Verification

    TekVPI Interface 067-1701-XX Wavetek 9100 DC voltage source -1.0 to +1.0 VDC, 0.2% accuracy Digital multimeter (DMM) Resistance, 0.1% accuracy Keithley 2700 HF Probe Tip adapter Probe tip adapter with 50 Ω termination 015-0678-00 TAP2500, TAP3500, and TAP4000 Instruction Manual...
  • Page 64 SMT KlipChip adapters (2) 0.25-in square pins-to-mini clips 206-0569-xx SMA torque wrench 5/16-in, 7 in-lb. SMA adapter wrench 7/32-in Nine-digit part numbers (xxx-xxxx-xx) are Tektronix part numbers. Standard accessories included with the probe. TAP2500, TAP3500, and TAP4000 Instruction Manual...

  • Page 65: Equipment Setup

    4. Turn on the remaining test equipment. 5. Allow 20 minutes for the equipment to warm up. 6. Photocopy the test record and use it to record the test results. (See page 59, Test record.) TAP2500, TAP3500, and TAP4000 Instruction Manual...

  • Page 66: Dc Gain Accuracy

    Calibration/Verification adapter. 3. Connect the precision termination to the BNC end of the SMA M-to-BNC F adapter. 4. Connect the BNC cable between the precision termination and the BNC-to-dual banana adapter attached to the DMM. TAP2500, TAP3500, and TAP4000 Instruction Manual...
  • Page 67 7. Attach the KlipChip adapters to the BNC-to-dual banana adapter connected to the DC voltage source. Make sure the polarity is correct-ground to outer shield and probe input to center conductor. TAP2500, TAP3500, and TAP4000 Instruction Manual...
  • Page 68 50 Ω termination is not used for the recommended termination, or if the oscilloscope offset is not set to zero. 15. Leave the TekVPI Calibration/Verification adapter and probe connected the oscilloscope to keep the probe warm. TAP2500, TAP3500, and TAP4000 Instruction Manual...

  • Page 69: Rise Time

    However, the TDR function is only available on 80E04 sampling heads. To prevent damage, use care when working with SMA connectors: support equipment to avoid mechanical strain on CAUTION. the connectors, and when tightening connections, use a torque wrench to 7.5 in-lbs. TAP2500, TAP3500, and TAP4000 Instruction Manual...
  • Page 70 2. Connect the 80E0X sampling head to Channel8 of the sampling oscilloscope. 3. Connect SMA cables to Channels 1 and 8. 4. Connect the SMA cable from Channel 1 to the HF Probe Tip adapter. TAP2500, TAP3500, and TAP4000 Instruction Manual...
  • Page 71 5. Remove the 50 Ω termination from the HF Probe Tip adapter and connect the SMA cable from Channel 8 to the adapter. 6. Turn on Channel 8 and set the vertical scale to 50 mV/div. TAP2500, TAP3500, and TAP4000 Instruction Manual...
  • Page 72 TDR Setups menu, and sets the horizontal scale, position, and reference. The sampling module will turn on a red light next to the SELECT channel button, indicating that TDR is activated for that channel. TAP2500, TAP3500, and TAP4000 Instruction Manual...
  • Page 73 Increase the stability of the pulse edge measurement by using averaging, if available. Rise time is determined from the 10% and 90% amplitude points on the waveform. Record the rise time as t TAP2500, TAP3500, and TAP4000 Instruction Manual...
  • Page 74 15. Connect the SMA cable from Channel 8 of the sampling oscilloscope to the SMA connector on the TekVPI Calibration/Verification adapter. 16. Connect the probe to the HF Probe Tip adapter. 17. Set the TekVPI oscilloscope offset to 0.0 V. TAP2500, TAP3500, and TAP4000 Instruction Manual...
  • Page 75 For a more stable measurement display, turn averaging on. NOTE. Do not touch the HF Probe Tip adapter when making calibration measurements. Measurement accuracy is degraded when the probe tip adapter is handled. TAP2500, TAP3500, and TAP4000 Instruction Manual...
  • Page 76 ) that you measured in step 20, calculate the probe-only rise time using the formula shown. 22. Check that the calculated rise time meets the probe specification. 23. Record the results on the test record. TAP2500, TAP3500, and TAP4000 Instruction Manual...

  • Page 77: Test Record

    Performance test Source voltage Minimum Measured Calculated Maximum +98 mV +102 mV DC Gain Accuracy +1.00 VDC -1.00 VDC -102 mV -98 mV Rise Time 140 ps (TAP2500) 130 ps (TAP3500) 115 ps (TAP4000) TAP2500, TAP3500, and TAP4000 Instruction Manual...

  • Page 78: Maintenance

    This section contains maintenance information for your probe. Error condition The TAP2500, TAP3500, and TAP4000 active probes are designed to work with all TekVPI-interface oscilloscopes and adapters. However, there may be some cases where all of the probe features may not work properly.

  • Page 79: Cleaning

    75% isopropyl alcohol solution. A swab is useful for cleaning narrow spaces on the probe, use only enough solution to dampen the swab or cloth. Do not use abrasive compounds on any part of the probe. TAP2500, TAP3500, and TAP4000 Instruction Manual...
  • Page 80 Maintenance TAP2500, TAP3500, and TAP4000 Instruction Manual...

  • Page 81: Index

    Documentation, xi Safety Summary, v Signal path compensation, 9 Specifications, 36 Maintenance, 60 nominal, 44 Menu Button, 4 Error condition, 60 typical, 38 warranted, 37 Status LED, 3, 60 Offset, 15 Features, 1 Options, 29 TAP2500, TAP3500, and TAP4000 Instruction Manual...
  • Page 82 Index TekVPI, 2 Test record, 59 TAP2500, TAP3500, and TAP4000 Instruction Manual...

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