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Tektronix TAP2500 User Manual
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Tektronix TAP2500 User Manual

Tektronix TAP2500 User 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
User Manual
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*P077189600*
077-1896-00
May 2025

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Summary of Contents for Tektronix TAP2500

  • Page 1 TAP2500, TAP3500, and TAP4000 2.5 GHz, 3.5 GHz, and 4 GHz Probes User Manual Register now! Click the following link to protect your product. tek.com/register *P077189600* 077-1896-00 May 2025...
  • Page 2 Copyright © 2025, Tektronix. 2025 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. Specifications and price change privileges reserved.

  • Page 3: Important Safety Information

    Do not connect or disconnect probes or test leads while they are connected to a voltage source. Use only insulated voltage probes, test leads, and adapters supplied with the product, or indicated by Tektronix to be suitable for the product.
  • Page 4 Avoid improper or prolonged use of keyboards, pointers, and button pads. Improper or prolonged keyboard or pointer use may result in serious injury. Be sure your work area meets applicable ergonomic standards. Consult with an ergonomics professional to avoid stress injuries. Use only the Tektronix rackmount hardware specified for this product.
  • Page 5 Therefore the probe wire may not provide adequate protection. WARNING: To avoid electric shock, do not use the probe if the wear indicator on the cable becomes visible. Contact Tektronix at tek.com...
  • Page 6 Important safety information These terms may appear on the product: • 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. Symbols on the product When this symbol is marked on the product, be sure to consult the manual to find out the nature of the potential hazards and any actions which have to be taken to avoid them.

  • Page 7: Compliance Information

    TAP2500, TAP3500, and TAP4000 2.5 GHz, 3.5 GHz, and 4 GHz Probes User Manual...
  • Page 8 Compliance information 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).

  • Page 9: Installation

    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 10: Probe Controls And Indicators

    Glows red if an error condition exists. 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 11 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 2.5 GHz, 3.5 GHz, and 4 GHz Probes User Manual...

  • Page 12: Functional Check

    Use the following procedure to check that your probe is functioning properly. To verify that your probe meets the warranted specifications, refer to the Performance Verification procedures. Before you begin Nine-digit part numbers (xxx-xxxx-xx) are Tektronix part numbers. Table 1: Required equipment Description and quantity...
  • Page 13 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 TAP2500, TAP3500, and TAP4000 2.5 GHz, 3.5 GHz, and 4 GHz Probes User Manual...
  • Page 14 Installation 3. Connect the probe to the oscilloscope PROBE COMP connector as shown. 4. From the Vertical menu, select Probe Cal. 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.

  • Page 15: Operating Information

    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 2.5 GHz, 3.5 GHz, and 4 GHz Probes User Manual...

  • Page 16: Probe Offset

    Operating information Figure 1: Dynamic and offset limitations Probe offset The probe offset is adjustable for operation within the linear range of the probe, and to increase the sensitivity of the probe at higher DC measurement voltages. Using the offset to cancel DC signal components enables optimal probe performance. Before you begin See your oscilloscope manual for specific instructions on using the offset control.

  • Page 17: Standard Accessories

    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. The Tektronix part number is 131-5638-XX (quantity 10). TAP2500, TAP3500, and TAP4000 2.5 GHz, 3.5 GHz, and 4 GHz Probes User Manual...
  • Page 18 Do not force the adapter. Also, be careful not to poke yourself with the sharp probe tip. SureToe adapters can be used with any of the socketed accessory leads. Four SureToe adapters are included with the probe. The Tektronix part number is 131-6254-XX (quantity 4). Pogo pin ground Use the low-inductance ground pogo pin to substantially reduce ground lead inductance and to easily move the probe to different points on the circuit under test.
  • Page 19 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. The Tektronix part number is 016-1774-XX (quantity 10). TAP2500, TAP3500, and TAP4000 2.5 GHz, 3.5 GHz, and 4 GHz Probes User Manual...
  • Page 20 0.025-inch square pins. When selecting the grounding connection, maintain as short a ground path as possible. The Tektronix part number is 196-3456-XX. The kit includes: Y-lead adapter (quantity 2), Three-in ground leads (quantity 3). SMT KlipChip adapter Use the SMT KlipChip test clips to access fragile, dense circuitry.
  • Page 21 Use the carrying case to hold the probe and accessories. 1. Place the probe and accessories in the carrying case. 2. Close the carrying case to transportation or storage. The Tektronix part number is 016-1952-XX. TAP2500, TAP3500, and TAP4000 2.5 GHz, 3.5 GHz, and 4 GHz Probes User Manual...

  • Page 22: Optional Accessories

    IC micro-grabber Use the IC Micro-Grabber to probe the leads on integrated circuits that are surface-mounted. The Tektronix part number is 013-0309-XX (quantity 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.

  • Page 23: Ground Lead Inductance

    The equation shows that reducing the ground lead inductance will raise the resonant frequency. If your measurements are affected by ringing, your goal is to lower the inductance of your ground path until the resulting resonant frequency is well above the frequency of your measurements. TAP2500, TAP3500, and TAP4000 2.5 GHz, 3.5 GHz, and 4 GHz Probes User Manual...

  • Page 24: Low-Inductance Grounding

    Operating information The low-inductance ground contacts described in Accessories can help you reduce the effects of ground lead inductance on your measurements. Low-inductance grounding Use a ground plane on the package to make probing the package easier, and to avoid adding unnecessary ground lead length and distortion.

  • Page 25: Surefoot Grounding

    1. Connect a short ground lead to the probe. 2. Attach a SureFoot adapter at the end of the ground lead. 3. Connect the SureFoot adapter directly to the package ground. TAP2500, TAP3500, and TAP4000 2.5 GHz, 3.5 GHz, and 4 GHz Probes User Manual...

  • Page 26: Probe Tip Test Points

    Operating information Probe tip test points The push-in probe tip or a 0.025-inch square pin can be soldered into a circuit to be used as a temporary test point. Before you begin 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.

  • Page 27: Specifications

    Nonoperating: 5-95% RH, tested up to +30 °C (+86 °F) 5-85% RH, tested at +30 °C to +75 °C (+86 to +167 °F) Altitude Operating: Up to 3000 meters (9,843 feet) Nonoperating: Up to 12,000 meters (39,370 feet) TAP2500, TAP3500, and TAP4000 2.5 GHz, 3.5 GHz, and 4 GHz Probes User Manual...

  • Page 28: Typical Characteristics

    Table 3: Typical electrical characteristics Characteristic Description Rise time (probe only) ≤115 ps (TAP4000) Bandwidth (probe only) DC to ≥2.5 GHz (TAP2500) DC to ≥3.5 GHz (TAP3500) DC to ≥4 GHz (TAP4000) Input resistance 40 kΩ Input capacitance ≤0.8 pF Input signal range -4.0 V to +4.0 V...
  • Page 29 Specifications Figure 4: TAP3500 Typical bandwidth Figure 5: TAP4000 Typical bandwidth TAP2500, TAP3500, and TAP4000 2.5 GHz, 3.5 GHz, and 4 GHz Probes User Manual...
  • Page 30 Specifications Figure 6: Typical input impedance and phase versus frequency Table 4: Typical mechanical characteristics Characteristic Description Dimensions, compensation box 107 mm × 41 mm × 26 mm (4.2 in × 1.6 in × 1.0 in) Dimensions, probe head 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);...

  • Page 31: Nominal Characteristics

    Nominal characteristics describe guaranteed traits, but the traits do not have tolerance limits. 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 2.5 GHz, 3.5 GHz, and 4 GHz Probes User Manual...

  • Page 32: Performance Verification

    Y-Lead adapter 0.25-in square pins for probe tip connections 196-3457-XX (standard accessory) SMT KlipChip adapters (2) 0.25-in square pins-to-mini clips 206-0569-XX (standard accessory) 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.

  • Page 33: Equipment Setup

    Connect the precision termination to the BNC end of the SMA M-to-BNC F adapter. Connect the BNC cable between the precision termination and the BNC-to-dual banana adapter attached to the DMM. TAP2500, TAP3500, and TAP4000 2.5 GHz, 3.5 GHz, and 4 GHz Probes User Manual...
  • Page 34 Performance verification Connect the second BNC-to-dual banana adapter to the output of the DC voltage source. Connect the Y-lead adapter and KlipChip adapters to the probe input. 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.
  • Page 35 Remove the 50 Ω termination from the HF Probe Tip adapter and connect the SMA cable from Channel 8 to the adapter. Turn on Channel 8 and set the vertical scale to 50 mV/div. TAP2500, TAP3500, and TAP4000 2.5 GHz, 3.5 GHz, and 4 GHz Probes User Manual...
  • Page 36 Performance verification Set the Channel 1/2 sampling head to TDR mode, press the SETUP DIALOGS button and select the TDR tab. Set the Channel 1 (C1) Polarity to positive (rising). Set the Preset of Channel 1 on. TDR Preset sets Internal Clock in the Trigger menu, turns on the TDR Step in the TDR Setups menu, turns on the channel and selects the acquisition Units in the TDR Setups menu, and sets the horizontal scale, position, and reference.
  • Page 37 For a more stable measurement display, turn averaging on. 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 2.5 GHz, 3.5 GHz, and 4 GHz Probes User Manual...
  • Page 38 Performance verification 19. Adjust the position controls on the sampling oscilloscope to display the entire leading edge waveform. 20. Use the measurement capability of the sampling oscilloscope to display rise time. a) Increase the stability of the pulse edge measurement by using averaging, if available. b) Rise time is determined from the 10% and 90% amplitude points on the waveform.
  • Page 39 DC Gain Accuracy +1.00 VDC +98 mV +102 mV -1.00 VDC -102 mV -98 mV Rise Time TAP2500 140 ps TAP3500 130 ps TAP4000 115 ps TAP2500, TAP3500, and TAP4000 2.5 GHz, 3.5 GHz, and 4 GHz Probes User Manual...

  • Page 40: Maintenance

    When repacking the instrument for shipment, use the original packaging. If the packaging is not available or unfit for use, contact your local Tektronix representative to obtain new packaging. If you need to return your instrument for repair or calibration, call 1-800-438-8165 or complete the form at tek.com/services/repair/...

This manual is also suitable for:

Tap3500Tap4000