Tektronix P6217 Instruction Manual
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Tektronix P6217 Instruction Manual

Tektronix P6217 Instruction Manual

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Instruction Manual
P6217
FET Probe
070-8553-02
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.

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Summary of Contents for Tektronix P6217

  • Page 1 Instruction Manual P6217 FET Probe 070-8553-02 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...
  • 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. Printed in the U.S.A.
  • 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: Table Of Contents

    Edge Tab Ground Sockets ... 1 11 SureFoot Adapters ....1 11 P6217 Instruction Manual...
  • Page 6 Contents Ground Lead Inductance ....1 12 Input Linear Dynamic Range ... 1 13 Performance Verification .
  • Page 7 Index ........P6217 Instruction Manual...
  • Page 8 Contents List of Figures Figure 1 1: The P6217 FET Probe and Standard Accessories ..Figure 1 2: Installing Four Post Ground Sockets ..... .
  • Page 9 Table 2 1: Troubleshooting Guide ..Table A 1: Warranted P6217 FET Probe Characteristics ....Table A 2:...
  • Page 10 Contents...

  • Page 11: Welcome

    Operator Safety Summary Please exercise care when operating this or any equip ment. In addition to applying common sense, please keep the following in mind as you use your P6217 FET Probe. Do Not Operate In Explosive Atmospheres To avoid explosion, do not operate this product in an explosive atmosphere unless the product has been specifically certified for such operation.

  • Page 12: Service Safety Summary

    Welcome WARNING To prevent injury, carefully read and follow the instructions given in a warning statement. To prevent damage caused by electrostatic discharge, wear a properly grounded wrist strap and observe static control precautions. Service Safety Summary The probe should be serviced only by qualified service personnel.

  • Page 13: Electrostatic Discharge

    Place component assemblies on a metal or other conductive surface. Do not slide the assembly across any surface. Wear a wrist strap when handling component assemblies to discharge static voltage from your body. Avoid materials that are capable of generating a static charge. P6217 Instruction Manual...

  • Page 14: Manual Organization

    Read General Information for an overview of probe features and accessories. Operating Information gives you the information you need to make effective use of your P6217 FET Probe. Read Operating Information to understand important operating concepts and the performance limitations of your probe.

  • Page 15: Conventions

    Calibration generator refers to any of the Tektronix 067 1338 0X Calibration Step Generators. Sampling head refers to any of the following Tektronix sampling heads: SD 22, SD 24, SD 26. The following convention applies to procedures: Literal equipment connectors or controls are indi...

  • Page 16: Contacting Tektronix

    For product support outside of North America, contact your local Tektronix distributor or sales office. Service Support Contact your local Tektronix distributor or sales office. Or visit our web site for a listing of worldwide service locations. http://www.tek.com For other information...

  • Page 17: User Information

    User Information...

  • Page 19: General Information

    The P6217 has a typical bandwidth of 4 GHz and an input impedance of 100 kW in parallel with 400 fF (fem tofarad). The P6217 output must terminate into 50 W.

  • Page 20: Standard Accessories

    General Information Standard Accessories The P6217 FET Probe is shipped with the following standard accessories: instruction manual ground contact springs (assorted) ESD protective tip cover edge tab ground sockets (5) SureFoot probe tip adapters (2 each 0.50 mm/20 mil (red), 0.65 mm/25 mil (blue), and 50 mil...

  • Page 21: Operating Information

    Operating Information Operating Information discusses several important topics that will help you make the most effective use of your P6217 FET Probe. Using the standard accessories is also described. NOTE Save the probe shipping and packaging materials for reuse should shipping the probe become necessary.

  • Page 22: Probe Parts

    Probe Parts Figure 1 1 identifies the primary parts of the P6217 FET Probe and shows how the standard accessories are used or attached. Detailed information about using the standard accessories is provided later in this section.

  • Page 23: Ground Connection

    10 ESD Protective Cover 11 SureFoot Adapter Note: Wrist strap accessory is not shown. Figure 1 1: The P6217 FET Probe and Standard Accessories Ground Connection The ground connection makes it possible to reference the signal at the probe tip to ground. The effects of ground lead (or ground connection) inductance are discussed later in this section.

  • Page 24: Probe Head And Cable

    Operating Information The metal barrel of the probe head allows several alternative ground connections. Read Standard Acces sories" in this section for more information about mak ing ground connections. Probe Head and Cable The probe tip makes the physical connection to your test point.

  • Page 25: Bnc Locking Ring

    The interface allows the oscilloscope to configure for the correct attenuation factor, input impedance and DC offset. The instrument can also access the probe serial number. Your oscilloscope may not implement all features of the TEKPROBE interface. Check your oscilloscope manual for details. P6217 Instruction Manual...

  • Page 26: Standard Accessories

    1103 output to your oscillo scope input. The 1103 can power two P6217 probes. If you use an 1103, keep the cable connecting the 1103 output to the oscilloscope input as short as possible to maintain the best possible high frequency response of the system.

  • Page 27: Esd Protective Tip

    Use the ESD (electrostatic discharge) protective tip cover to reduce the chance of static discharge damage to your probe. Place the protective cover over the probe tip whenever you are not using the probe to make measurements. P6217 Instruction Manual...

  • Page 28: Four Post Ground Sockets

    Operating Information Four Post Ground Sockets Use the four post ground sockets to design in minimum inductance test points on your next circuit board. With this type of socket installed, the practical frequency limit of your measurements is determined by system perfor mance specifications instead of ground lead inductance effects.

  • Page 29: Edge Tab Ground Sockets

    The SureFoot adapters allow probing of fine pitch devices without shorting adjacent leads. To accomplish this, each adapter has a small tab that fits between the tightly spaced leads to prevent the probe tip from slipping. (see Figure 1 4). 1 11 P6217 Instruction Manual...

  • Page 30: Ground Lead Inductance

    Operating Information There are adapters for three pitch sizes 0.50 mm/20 mil (red), 0.65 mm/25 mil (blue), and 50 mil (orange). Figure 1 4: Using the SureFoot Adapter Ground Lead Inductance When you touch your probe tip to a circuit element, you are introducing a new resistance, capacitance, and inductance into the circuit.

  • Page 31: Input Linear Dynamic Range

    Input Linear Dynamic Range The internal amplifier used by the P6217 FET Probe to drive a 50 W load has a limited range. To keep the input linearity error less than 3% you must limit the signal input voltage to ±4 V (including any DC offset).
  • Page 32 DC offset adjustment to maintain the probe within its dynamic range. The nominal offset adjustment of the P6217 FET Probe is "5 VDC. Note that the probe can tolerate input voltages of ±40 V without damage; however, the linearity error specification does not apply to input voltages exceed ing ±4 V (including any DC offset).

  • Page 33: Performance Verification

    Performance Verification Performance Verification provides procedures that you can use to verify the performance of your P6217 FET Probe. The following performance characteristics are verified: system attenuation system rise time probe output offset zero and gain Performance requirements that are not verified are characteristics that are either extremely stable and unlikely to change, or impractical to verify.

  • Page 34: Limits And Tolerances

    Performance Verification Limits and Tolerances The limits and tolerances given in this procedure apply to the probe under test only. Errors arising from test equipment are not included unless specifically noted. Test Equipment Required The items listed in Table 1 1 are necessary to complete the performance verification procedures.

  • Page 35: Table 1 1: Required Test Equipment

    015 1022 00 general purpose male male SMA Tektronix part coaxial cable number length: 20 in. 174 1427 00 coaxial precision male male SMA Tektronix part delay cable number delay: 2 ns. 015 0560 00 1 17 P6217 Instruction Manual...

  • Page 36: Equipment Connections

    Performance Verification Equipment Connections To prevent electrostatic discharge damage to the oscilloscope input, wear a properly grounded wrist strap whenever you make an oscilloscope input connection. Calibrate the Test System Before beginning the performance verification proce dures, connect the calibration step generator (refer to Figure 1 6 as necessary) and calibrate the sampling head channel that will be used to perform the proce dures:...

  • Page 37: Figure 1 6: Calibration Step Generator Setup 1

    Probe Power Supply Output Input Calibration Step Oscilloscope Generator Power Supply Calibration Step Generator Trigger Input Calibration Step Internal Clock Output Generator Remote Head Figure 1 6: Calibration Step Generator Setup 1 19 P6217 Instruction Manual...

  • Page 38: Attenuation

    Performance Verification Attenuation This procedure verifies that the probe attenuation factor meets specification. With this procedure you compare a reference signal provided by the oscilloscope to the same signal attenuated by the probe. Step 1: Install one SMA BNC adapter on to the channel 1 output of the 1103 power supply and install another SMA BNC adapter on the channel 1 input of the 1103 power supply.
  • Page 39 Step 8: Use the BNC locking ring to connect the P6217 probe to the 1103 power supply channel 1 input. If the 1103 power supply offset feature is enabled, disable the offset control on channel 1 of the 1103 power supply by pressing the lighted button.

  • Page 40: Figure 1 8: Attenuation Test Final Setup

    SMA female female adapter. Insert the probe tip into the probe tip adapter and secure the probe tip by tightening the thumb screw on the probe tip adapter. Refer to Figure 1 8. P6217 FET Probe BNC to SMA Adapter 50 W Terminator Probe...
  • Page 41 Record the D volt age as V Step 11: Calculate the attenuation error using the following formula: (10) * V % error + 1 0 0 Step 12: Check probe attenuation. The attenuation error must be v2.0%. 1 23 P6217 Instruction Manual...

  • Page 42: Rise Time

    Performance Verification Rise Time This procedure verifies that the probe meets rise time specifications. The probe rise time is calculated from rise times ob tained by measuring the test system without the probe attached, and the test system plus the probe. Step 1: After completing the previous procedure (attenuation), disconnect the calibration step gener ator remote head from the probe tip adapter.

  • Page 43: Figure 1 9: Rise Time Test Setup

    Remove the SMA BNC adapter from the 1103 power supply input. Step 7: Use the BNC locking ring to connect the P6217 probe to the 1103 power supply channel 1 input. Disable the offset control on channel 1 of the 1103 power supply.
  • Page 44 Performance Verification Step 8: Connect the probe tip adapter to the calibration step generator remote head using the SMA female female adapter. Insert the probe tip into the probe tip adapter and secure the probe tip by tightening the thumb screw on the probe tip adapter.

  • Page 45: Probe Output Offset Zero

    Step 2: Verify that the P6217 probe tip is inserted into the probe tip adapter assembly. (One end of the probe tip adapter is not used.) Verify that the 50 W termination is installed.

  • Page 46: Figure 1 10: Probe Offset Setup

    Performance Verification P6217 FET Probe BNC to SMA Adapter 50 W Terminator Probe Power Supply Precision Coaxial Cable Output Input Oscilloscope Probe Tip Adapter Calibration Step Generator Trigger Input Input Internal Clock Output Sampling Head Figure 1 10: Probe Offset Setup...

  • Page 47: Offset Function

    2.5 divisions from the center graticule. Step 4: Turn the 1103 Power Supply offset adjust knob fully counterclockwise. Step 5: Check that the free running trace has moved down 2.5 divisions from the center graticule. 1 29 P6217 Instruction Manual...
  • Page 48 Performance Verification 1 30 User Information...

  • Page 49: Service Information

    Service Information...

  • Page 51: Theory Of Operation

    The P6217 FET Probe can be divided into two function al blocks: the probe head and the compensation box. Figure 2 1 shows a block diagram of the probe divided into the two functional areas.

  • Page 52: Figure 2 1: Functional Block Diagram Of The Probe

    Theory of Operation Totem Transistor Pole Cable Buffer FETs 72.5 k Input From Probe Tip 22.5 k Comp BIAS SENSE INPUT OFFSET Probe Head Probe Head Cable Assembly +15 V +15 V +5 V +5 V Cable Output From Probe BIAS Head Compensation...

  • Page 53: Probe Head

    50 W (if applicable) and the display readout is automatically corrected for the probe attenuation factor. Figure 2 2 shows the pin assignments for the P6217 FET Probe data and power connector. P6217 Instruction Manual...

  • Page 54: Compensation Circuits

    Theory of Operation Data -15 V -5 V Offset Clock Ground +5 V Signal +15 V Figure 2 2: Probe Interface Pin Assignments Compensation Circuits Probe compensation is accomplished in three function al areas: voltage regulation, feedforward correction, and DC offset drive. Voltage Regulation Voltage regulators control the precision low voltage supplies required by the probe...

  • Page 55: Maintenance

    The severity of the environment in which you use your probe should determine the frequency of maintenance. A convenient time to perform preventive maintenance is just before performing a performance verification proce dure. P6217 Instruction Manual...

  • Page 56: Static Sensitive Devices

    Maintenance Static Sensitive Devices The P6217 FET Probe contains devices that are susceptible to damage from static dis charge. To prevent damage to static sensitive devices, observe the following precautions whenever the covers are off the compensation box or you handle component as semblies: Minimize handling of components.

  • Page 57: Exterior

    Table 2 1 lists a number of possible probe problems, their probable cause, and recommended actions. Procedures for replacing failed or defective parts are provided after Table 2 1. P6217 Instruction Manual...

  • Page 58: Troubleshooting Techniques

    Step 5: Refer to the troubleshooting guide, Table 2 1. Step 6: Contact your local Tektronix field office or representative. Service Information...

  • Page 59: Table 2 1: Troubleshooting Guide

    Probe output exceeds 1. Defective power 1. Check offset specification supply oscilloscope vertical amplifier fuses 2. Broken or 2. Replace probe unsoldered wire or component in compensation 3. Replace probe 3. Hybrid assembly damaged by static discharge P6217 Instruction Manual...

  • Page 60: Corrective Maintenance

    Corrective Maintenance Corrective maintenance consists of replacing defective parts or assemblies. To ensure satisfactory operation and performance of your P6217 probe, no internal parts or assemblies are field replaceable, except for the TEKPROBE interface contact pins. For information about replaceable accessories, refer to Replaceable Parts.

  • Page 61: Precautions

    Obtaining Replacement Parts The components and assemblies used in your P6217 probe are manufactured, selected, or specified by Tektronix to meet specific performance requirements. Order all replacement parts from your local Tektronix field office or representative.

  • Page 62: Replacing Tekprobe Interface Contact Pins

    Maintenance Replacing TEKPROBE Interface Contact Pins To replace a TEKPROBE interface contact pin, use a pair of needle nosed pliers to pull the pin straight out of the BNC assembly. Refer to Figure 2 3. To install a new pin, hold the pin carefully with the needle nosed pliers while pushing the pin into the BNC assembly.

  • Page 63: Replaceable Parts List

    Replaceable Parts List This section contains a list of the parts that are replace able for the P6217 FET Probe. Use this list to identify and order replacement parts. Parts Ordering Information Replacement parts are available from or through your local Tektronix, Inc.

  • Page 64: Using The Replaceable Parts List

    Replaceable Parts Using The Replaceable Parts List The tabular information in the replaceable parts list is arranged for quick retrieval. Understanding the struc ture and features of the list will help you find the all the information you need for ordering replacement parts. Item Names In the replaceable parts list, an Item Name is separated from the description by a colon (:).
  • Page 65 TIGARD OR 97223 TK1326 NORTHWEST FOURSLIDE INC 18224 SW 100TH CT TUALATIN OR 97062 8X345 NORTHWEST SPRING & MFG CO 5858 WILLOW LANE LAKE OSWEGO OR 97034-5343 80009 TEKTRONIX INC 14150 SW KARL BRAUN DR BEAVERTON OR 97077-0001 PO BOX 500...

  • Page 66: Figure 2 4: P6217 And Accessories

    Standard Accessories Ä Ä Optional Accessory Figure 2 4: P6217 and Accessories...
  • Page 67 Tektronix Serial No. Mfr. Part No. Effective Dscont 12345 Name & Description Code Mfr. Part No. 2 4- P6217,PROBE,ACTIVE:4 GHZ,0.4PF,10X, TEKPROBE 200-3961-00 COVER,PROBE TIP:ESD PROTECTIVE TK1163 ORDER BY DESC STANDARD ACCESSORIES 131-5482-00 CONTACT,ELEC:TIP GROUND,PKG OF 2 EA OF 5 8X345...
  • Page 68 Fig. & Index Tektronix Serial No. Mfr. Part No. Effective Dscont 12345 Name & Description Code Mfr. Part No. OPTIONAL ACCESSORIES 342-1039-10 ADAPTER, SMD, ORANGE, 50 MIL 80009 342103910 342-1038-10 ADAPTER, SMD, BLUE, 0.65 mm/25 mil 80009 342103810 342-1037-10 ADAPTER, SMD, RED, 0.50 mm/20 mil...

  • Page 69: Appendix

    Appendix...

  • Page 71: Specifications

    Specifications This section lists the electrical, environmental, and physical characteristics of the P6217 FET Probe. Fol lowing the specification tables are a series of graphs that characterize impedance by frequency, maximum input voltage by frequency, and typical bandwidth. Performance Conditions...

  • Page 72: Table A 1: Warranted P6217 Fet Probe

    Physical and environmental specifications are not verified in this manual. Specifications are subject to change without notice. Table A 1: Warranted P6217 FET Probe Characteristics Supplemental Characteristic Specification Information Attenuation 10X"2% at DC...

  • Page 73: Table A 2: Nominal And Typical

    (typical) Refer to Figure A 1 for typical input impedance Input Resistance 100 kW±5% (typical) (probe) at DC Probe operating Refer to Figure A 1 for typical input impedance Linearity ±3% (typical) Within dynamic range P6217 Instruction Manual...

  • Page 74: Table A 3: Environmental Characteristics

    Table A 3: Environmental Characteristics Supplemental Characteristic Description Information Electrostatic Tektronix does not Immunity warrant the P6217 FET Probe to meet the requirements listed in IEC 801 2 Humidity 10 to 30_ C: Meets the requirements v95% R.H. of MIL STD 28800 E...

  • Page 75: Table A 4: Physical Characteristics

    Specifications Table A 4: Physical Characteristics Performance Supplemental Characteristic Requirement Information Shipping Weight 0.1 kg (nominal) (including (0.22 lbs) accessories) Probe Cable Length (nominal) (3.3 ft) P6217 Instruction Manual...

  • Page 76: Figure A 1: Typical Input Impedance Vs

    Specifications 100k ohms degrees 10 k 10 M 100 M 10 G 10 k 100 k Frequency (Hz) Figure A 1: Typical Input Impedance vs Frequency Appendix...

  • Page 77: Figure A 2: Voltage Derating Vs Frequency

    Specifications 100 M 10 M 10 G Frequency (Hz) Figure A 2: Voltage Derating vs Frequency P6217 Instruction Manual...

  • Page 78: Figure A 3: Typical Frequency Response

    Specifications -1.0 -2.0 -3.0 -4.0 -5.0 -6.0 10 M 100 M 10 G Frequency (Hz) Figure A 3: Typical Frequency Response Appendix...
  • Page 79 Index...
  • Page 81 1 9 ground leads contact pin replacement, 2 12 inductance, 1 12 1 13 contacting Tektronix, xii reducing inductance, 1 9 spring tip, 1 8 description of product, 1 1 dynamic range, 1 13 hybrid circuit, 2 3 P6217 Instruction Manual...
  • Page 82 Index TEKPROBE compatible, 1 7 output offset checking, 1 27 1 28 ICs, probing, 1 9 specification, 1 28 identifying probes, 1 6 output offset function, checking, impedance, input, A 6 1 29 1 30 inductance, reducing, 1 9, 1 10, 1 12 1 13 input, linear dynamic range, 1 13 interface...
  • Page 83 A 4 thermal drift, A 3 voltage derating curve, A 7 voltage, maximum, A 4 weight, A 5 spring tip, 1 8 static damage, preventing, 1 18, 2 6 static protection, 1 9 SureFoot adapters, 1 11 P6217 Instruction Manual...

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