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Tektronix P7225, User Manual

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P7225 2.5 GHz 10X Active Probe User Manual

1

Product Description

The Tektronix P7225 is a 2.5 GHz, 10X active probe. The P7225 has
a

≤

0.8 pF input capacitance and a high input resistance (40 k

Ω)

, to

minimize circuit loading over the specified bandwidth. The small
profile and low-mass head of the P7225 make probing dense
circuitry by hand fast and easy. The accessory tips and adapters
included enable the P7225 to be used on a wide variety of circuit
architectures.

Figure 1: P7225 Probe featuring the TekConnect Interface

TekConnect Interface

The P7225 is powered through a TekConnect Interface between the
probe compensation box and the host instrument. The TekConnect
Interface provides a communication path through contact pins on the
host instrument. Power, signal, offset, and probe characteristic data
transfer through the interface.

Summary of Contents for P7225

Page 1: ...1187 01 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...

Page 2: ...lication supercedes that in all previously published material Specifications and price change privileges reserved Tektronix Inc P O Box 500 Beaverton OR 97077 TEKTRONIX and TEK are registered trademar...

Page 3: ...e service center designated by Tektronix with shipping charges prepaid Tektronix shall pay for the return of the component to Customer if the shipment is to a location within the country in which the...

Page 4: ......

Page 5: ...set 17 Operating Basics 19 Handling the Probe 19 Maximum Nondestructive Input Voltage 19 Input Linear Dynamic Range 20 Electrical Effects of Adapters 20 Ground Lead Length 21 Ground Lead Inductance 22...

Page 6: ...p adapter 21 Figure 6 Waveform distortion from ground lead length 22 Figure 7 Ground lead equivalent circuit 23 Figure 8 Low inductance grounding 25 Figure 9 Using a SureFoot adapter for grounding 26...

Page 7: ...225 features and standard accessories 5 Table 2 P7225 optional accessories 12 Table 3 Warranted electrical specifications 29 Table 4 Typical electrical characteristics 29 Table 5 Physical characterist...

Page 8: ...Table of Contents iv P7225 2 5 GHz 10X Active Probe User Manual...

Page 9: ...d the probe ground from the circuit under test before disconnecting the probe from the measure ment instrument Observe All Terminal Ratings To avoid fire or shock hazard observe all ratings and markin...

Page 10: ...tements identify conditions or practices that could result in damage to this product or other property Terms on the Product These terms may appear on the product DANGER indicates an injury hazard imme...

Page 11: ...ist Related Manuals If you need to do a performance verification or make internal adjustments to your probe refer to the P7225 2 5 GHz Active Probe Service Manual The manual is a printable pdf file an...

Page 12: ...ales support 1 800 833 9200 select option 1 Service support 1 800 833 9200 select option 2 Technical support Email techsupport tektronix com 1 800 833 9200 select option 3 1 503 627 2400 6 00 a m 5 00...

Page 13: ...circuitry by hand fast and easy The accessory tips and adapters included enable the P7225 to be used on a wide variety of circuit architectures Figure 1 P7225 Probe featuring the TekConnect Interface...

Page 14: ...a valid TekConnect device is detected Installation The TekConnect Interface features a spring loaded latch that provides audible and tactile confirmation that a reliable connection has been made to th...

Page 15: ...e P7225 probe H Option D1 Calibration Data Report H Option C3 3 years Calibration Service H Option D3 3 years Calibration Data Report requires Option C3 H Option R3 3 years Repair Service H Option C5...

Page 16: ...Product Description 4 P7225 2 5 GHz 10X Active Probe User Manual...

Page 17: ...ase of use and high performance The small size makes it easy to handle in tight areas The probe tip socket is sized to easily press onto 0 025 inch square pins for direct access The ground socket prov...

Page 18: ...he tip in until it is seated Either end of the tip may be used Do not force the tip Also be careful not to poke yourself with the sharp probe tip To remove the tip gently grab the tip with small plier...

Page 19: ...ain signal fidelity while probing use as short a ground path as possible Refer to page 21 for more grounding information Y lead adapter Y lead adapter Use the Y lead adapter to extend the physical rea...

Page 20: ...grounding information Tektronix part number 196 3482 XX pkg of 5 Right angle adapter Adapter spring Use the adapter spring for low profile probing of 0 025 inch square pins The adapter spring allows t...

Page 21: ...ointed probe tip useful for probing in dense circuitry Attach the SureToe adapters the same way as the push in probe tips Do not force the adapter Also be careful not to poke yourself with the sharp p...

Page 22: ...nnel Tektronix part number 016 1315 XX pkg of 10 Antistatic wrist strap When using the probe always work at an antistatic work station and wear the antistatic wrist strap Tektronix part number 006 341...

Page 23: ...Description Accessory reorder sheet Use the accessory reorder sheet as a quick guide for ordering accessories for your probe The sheet provides photos and part numbers for identifying your accessorie...

Page 24: ...available for the probe and can be used with any of the socketed accessory leads Orange SureFoot adapter SF501 The orange SureFoot adapter is compatible with 50 mil JEDEC packages such as SOIC PLCC CL...

Page 25: ...ncludes a 50 ohm SMA terminator Tektronix part number 015 0678 XX IEEE1394 Adapter The IEEE1394 Adapter allows you to probe signals on the bus external to system enclosures without disturbing system o...

Page 26: ...s fixture provides an edge source to time align deskew and to optimize host instrument gain and offset accuracy at the probe tip The probes are held in place allowing hands free operation without requ...

Page 27: ...trument please refer to the user manual for the host instrument Figure 3 illustrates the probe compensation connection for TDS6000 and TDS7000 instruments Your instrument may differ from Figure 3 Plea...

Page 28: ...nt to display a stable calibration waveform You may need to adjust the probe offset to display the waveform NOTE Now is a good time to perform a probe calibration routine from your instrument Refer to...

Page 29: ...within the linear range of the probe Using the offset to cancel DC signal components enables optimal probe performance See Figure 4 on page 18 for more information NOTE See your host instrument manual...

Page 30: ...oltage linear operating range is 4 V See Figure 4 If cursors are used on a TekConnect Interface host instrument the zero reference will be at the probe offset voltage 0 V 14 0 V 14 0 V 4 0 V 4 0 V 10...

Page 31: ...x and probe head avoiding undue physical strain to the probe cable NOTE To reduce the likelihood of creating signal aberrations be careful not to dent kink pull or stretch the cable CAUTION To prevent...

Page 32: ...input voltages exceeding 14 0 V including any DC offset See Figure 4 on page 18 Electrical Effects of Adapters The probe tip adapters included with your probe help connect to different types of compo...

Page 33: ...pin Figure 5 Typical effects of using a probe tip adapter Ground Lead Length When you are probing a circuit always use as short a ground lead as possible between the probe head and circuit ground The...

Page 34: ...on test board no signal or ground length 1 7 in Y lead adapter 3 0 in Ground lead with SMT KlipChip Figure 6 Waveform distortion from ground lead length Ground Lead Inductance When you touch your pro...

Page 35: ...ance C of your probe and ground lead Calculate the approximate resonant frequency f0 at which this parasitic circuit will resonate with the following formula f0 1 2 LC The preceding equation shows tha...

Page 36: ...Operating Basics 24 P7225 2 5 GHz 10X Active Probe User Manual...

Page 37: ...on top of the IC package being probed can minimize ground lead length and inductance See Figure 8 Figure 8 Low inductance grounding Attach a small piece of copper clad wire on top of the IC package a...

Page 38: ...h and distortion SureFoot Grounding If you cannot use the recommended low inductance grounding method you may ground the probe to the IC package under test using a SureFoot adapter Refer to Figure 9 F...

Page 39: ...nto the push in probe tip to make a measurement Pull the probe head off of the push in probe tip when you are done You can remove and reuse the push in probe tip by desoldering it from the circuit and...

Page 40: ...Helpful Hints 28 P7225 2 5 GHz 10X Active Probe User Manual...

Page 41: ...ltage range to the probe Table 3 Warranted electrical specifications Output Zero 10 mV or less at output of probe Rise Time probe only 140 ps DC Gain Accuracy probe only 0 1 2 excludes offset error Ta...

Page 42: ...tructive Input Voltage Range 30 V to 30 V DC peak AC Input Resistance 40 k See Figure 11 for impedance vs frequency Input Capacitance 0 8 pF DC Offset Drift 150 V C or less at output of probe 0 75 mV...

Page 43: ...45 K 110 40 K 35 K 30 K 25 K 1 MHz 10 MHz 100 MHz 1 GHz 10 GHz 90 70 50 30 10 10 30 50 70 110 90 20 K Frequency Hz Input Impedance Magitude ohms Phase degrees 15 K 10 K 5 K 0 K 100 KHz 10 KHz Magnitu...

Page 44: ...Appendix A Specifications 32 P7225 2 5 GHz 10X Active Probe User Manual Frequency 100 MHz 10 MHz 10 GHz 1 GHz 17 20 23 26 29 32 Gain 20 Log VOUT VIN Gain dB Figure 12 Typical bandwidth...

Page 45: ...istics Net weight 1 41 kg 3 1 lbs Cable length 1 3 m 50 in Table 6 Environmental characteristics Operating temperature 0 C to 40 C 32 _F to 104 _F Nonoperating temperature 55 C to 75 C 67 _F to 167 F...

Page 46: ...l Table 7 Certifications and compliances Category Standards or description EMC compliance This product has been reviewed to the conditions and provisions of Directive 89 336EEC for products of the EN6...

Page 47: ...nd water solution Calibration If you need to do a performance verification or make internal adjustments to your probe refer to the P7225 2 5 GHz Active Probe Service Manual The manual is a printable p...

Page 48: ...lines 1 Use a corrugated cardboard shipping carton having inside dimensions at least one inch greater than the probe dimensions The box must have a carton test strength of at least 200 pounds 90 72 kg...

Page 49: ...struments are sometimes made to accommo date improved components as they become available and to give you the benefit of the latest circuit improvements Therefore when ordering parts it is important t...

Page 50: ...stem This parts list is indented to show the relationship between items The following example is of the indentation system used in the Description column 1 2 3 4 5 Name Description Assembly and or Com...

Page 51: ...gure 14 P7225 replaceable parts Fig index no Tektronix part no Serial no Effective Dscont Qty 12345 name description Mfr code Mfr part no 14 1 010 0694 XX 1 PROBE FET ACT 2 5 GHZ 10X 0 8 PF TDS SERIES...

Page 52: ...Appendix C Replaceable Parts P7225 2 5 GHz 10X Active Probe User Manual 40 1 2 3 4 5 6 7 8 9 10 11 12 Figure 15 P7225 standard accessories...

Page 53: ...KIT POGO PIN PKG OF 10 060D9 016 1772 10 5 016 1773 10 1 ACCESSORY KIT GND PIN LENGTH ADAPTER PKG OF 10 060D9 016 1773 10 6 016 1774 XX 1 ACCESSORY KIT ADAPTER SPRING PKG OF 10 060D9 016 1774 XX 7 1 P...

Page 54: ...Appendix C Replaceable Parts P7225 2 5 GHz 10X Active Probe User Manual 42 1 2 3 4 5 6 7 8 Figure 16 P7225 optional accessories...

Page 55: ...MIL JEDEC PKG OF 12 060D9 SF502 3 SF503 1 ADPTR SUREFOOT 0 5 MM EIAJ PKG OF 12 060D9 SF503 4 SMK4 1 TIP PROBE MICROCKT TEST PKG OF 4 0HHL8 SMK4 5 067 0422 XX 1 CALIBRATION FIXTURE ASSY ECB TO TOP P700...

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