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Summary of Contents for Tektronix TDP4000
- Page 1 TDP3500 and TDP4000 3.5 GHz and 4 GHz Differential Probes Technical Reference www.tek.com 071-2297-02...
- Page 2 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 3 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.
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Page 5: Table Of Contents
Preparation for shipment......................TDP3500 and TDP4000 Technical Reference... - Page 6 Table of Contents TDP3500 and TDP4000 Technical Reference...
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Page 7: Important Safety Information
Disable the product if it is damaged. Do not use the product if it is damaged or operates incorrectly. If in doubt about safety of the product, turn it off and disconnect the power cord. Clearly mark the product to prevent its further operation. TDP3500 and TDP4000 Technical Reference... -
Page 8: Service Safety Summary
To avoid electric shock. Do not touch exposed connections. 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. TDP3500 and TDP4000 Technical Reference... -
Page 9: Terms In This Manual
These terms may appear on the product: WARNING indicates an injury hazard not immediately accessible as you read the marking. CAUTION indicates a hazard to property including the product. The following symbol(s) may appear on the product: TDP3500 and TDP4000 Technical Reference... -
Page 10: Preface
Preface Preface This is the Technical Reference Manual for the TDP3500 and TDP4000 differential probes. This manual provides specifications and performance verification procedures for the probe. TDP3500 and TDP4000 Technical Reference... -
Page 11: Specifications
Specifications The specifications in Tables 1 through 4 apply to a TDP3500 and TDP4000 differential probes installed on a Tektronix 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. -
Page 12: Typical Characteristics
Referred to probe input Input impedance (See Figure 5 on page 4.) Propagation delay 5.4 ns ±2 ns from probe tip to output 5.4 ns ±2 ns from probe tip to output Figure 1: TDP3500 typical bandwidth TDP3500 and TDP4000 Technical Reference... - Page 13 Specifications Figure 2: TDP4000 typical bandwidth Figure 3: TDP3500 Typical rise time TDP3500 and TDP4000 Technical Reference...
- Page 14 Specifications Figure 4: TDP3500 and TDP4000 Typical Common-Mode Rejection Ratio Figure 5: TDP3500 and TDP4000 Typical input impedance versus frequency TDP3500 and TDP4000 Technical Reference...
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Page 15: Nominal Characteristics
Nominal characteristics describe guaranteed traits, but the traits do not have tolerance limits. Table 4: Nominal electrical characteristics Input configuration Differential (two inputs, + and - ), with case ground Output coupling DC coupling Voltage range +/–2 V Termination Terminate output into 50 Ω TDP3500 and TDP4000 Technical Reference... -
Page 16: Probe Tip Adapter Specifications
Variable Spacing Adapter Tektronix part number: 016-1885-xx Bandwidth: <3.5 GHz (TDP3500), <4 GHz (TDP4000), 10/90 Rise time: <120 ps (TDP3500), <110 ps (TDP4000) This adapter has adjustable pins that can span from 0.020 to 0.180 inch apart. TDP3500 and TDP4000 Technical Reference... - Page 17 Square Pin Adapter Tektronix part number: 016-1884-xx Bandwidth: <3.5 GHz 10/90 Rise time: <120 ps Use this adapter to provide easy access to square-pin test points that you frequently check, or to other probe accessories. TDP3500 and TDP4000 Technical Reference...
- Page 18 Tektronix part number: 020-2505-xx Solder-In Adapter Kit (Includes two adapters, Tektronix part number 016-1926-xx, and a Resistor/Wire Kit, Tektronix part number 020-2506-xx) You can reorder the kit. The Resistor/Wire Kit includes ten each resistors (10 Ω and 20 Ω bonded to 0.020 in wire), and ten lengths of 0.020 in solder wire.
- Page 19 Tektronix part number: 206-0569-xx Usable Bandwidth: <100 MHz Calculated rise time: 3.5 ns Use the MicroCKT Test Tips with the Y-lead adapters. Due to the length of these adapters, they are recommended only for DC and low-frequency measurements. TDP3500 and TDP4000 Technical Reference...
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Page 20: Performance Verification
Performance verification Performance verification Use the following procedures to verify the warranted specifications of the TDP3500 and TDP4000 Differential Probe. Before beginning these procedures, photocopy the test record and use it to record the performance test results. (See Table 6 on page 21.) The recommended calibration interval is one year. -
Page 21: Special Adapters
Performance verification Special adapters Some of the adapters used in these procedures are available only from Tektronix. These adapters are described on the following pages. TekVPI Calibration Fixture The TekVPI calibration fixture, Tektronix part number 067-1701-xx, connects between the host instrument and the probe under test. - Page 22 Probe Calibration Fixture The Probe calibration fixture, Tektronix part number 067-0419-xx, provides a means to check the rise time specification of the probe. (See Figure 8.) A probe positioner can be helpful to keep the probe in contact with the fixture.
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Page 23: Preparation
13. Allow the probe and test equipment to warm up for 20 minutes at an ambient temperature of 20 °C to 30 °C. 14. Photocopy the test record and use it to record the test results. (See Table 6 on page 21.) Perform the verification procedures in order. TDP3500 and TDP4000 Technical Reference... -
Page 24: Dc Attenuation Accuracy
1. Set the vertical offset to 0 V. 2. Connect the MicroCKT test tips to the DC source. Observe proper polarity: red to (+), black to (–). 3. Connect a second DMM to the DC source. Figure 10: Setup for differential-mode tests TDP3500 and TDP4000 Technical Reference... - Page 25 = 2.8 V ÷ 0.56 V = 5.0 9. Verify that the attenuation is in the range of 4.9 to 5.1. Record the results in the test record. Leave the probe connected for the next test. TDP3500 and TDP4000 Technical Reference...
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Page 26: Differential Signal Range
11. Verify that the attenuation is in the range of 4.75 to 5.25. Record the results in the test record. Disconnect the probe from the test setup and connect it to any oscilloscope channel to keep the probe at operating temperature. TDP3500 and TDP4000 Technical Reference... -
Page 27: Rise Time
5. Connect the SMA cable from Channel 8 to the SMA connector on the TekVPI adapter. 6. Turn on Channel 8 and set the vertical scale to 50 mV/div. Figure 12: Test system rise time setup TDP3500 and TDP4000 Technical Reference... - Page 28 13. Use the oscilloscope measurement capability to display rise time. 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 TDP3500 and TDP4000 Technical Reference...
- Page 29 18. Set the TekVPI oscilloscope offset to 0.0 V. Figure 14: Probe rise time setup NOTE. The following measurements are taken with the sampling oscilloscope. The TekVPI oscilloscope only provides power and offset to the probe. TDP3500 and TDP4000 Technical Reference...
- Page 30 ) that you measured in step 13, and the test system and probe rise time (t ) that you measured in step 21, calculate the probe-only rise time using the formula shown. Example: This completes the performance verification. TDP3500 and TDP4000 Technical Reference...
- Page 31 Date of Calibration: _____________Technician: _____________ Performance test Minimum Measured/Calculated Maximum DC attenuation accuracy _____________ Differential signal range 4.75 _____________ 5.25 standard polarity 4.75 _____________ 5.25 with connections reversed Rise time ≤140 ps _____________ TDP3500 at 3.5 GHz TDP3500 and TDP4000 Technical Reference...
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Page 32: Maintenance
Quick Start User Manual for a list of replaceable accessories for your probe. If your probe does not meet the specifications tested in the Performance Verification, you can send the probe to Tektronix for repair. Follow the procedure below to prevent damage to the probe during shipping.
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