Use the product only as specified. Review the following safety precautions to avoid injury and prevent damage to this product or any products connected to it. Carefully read all instructions. Retain these instructions for future reference.

This product shall be used in accordance with local and national codes.

For correct and safe operation of the product, it is essential that you follow generally accepted safety procedures in addition to the safety precautions specified in this manual.

The product is designed to be used by trained personnel only.

Only qualified personnel who are aware of the hazards involved should remove the cover for repair, maintenance, or adjustment.

Before use, always check the product with a known source to be sure it is operating correctly.

This product is not intended for detection of hazardous voltages.

Use personal protective equipment to prevent shock and arc blast injury where hazardous live conductors are exposed.

While using this product, you may need to access other parts of a larger system. Read the safety sections of the other component manuals for warnings and cautions related to operating the system.

When incorporating this equipment into a system, the safety of that system is the responsibility of the assembler of the system.

Before connecting probes or test leads, connect the power cord from the power connector to a properly grounded power outlet.

Keep fingers behind the protective barrier, protective finger guard, or tactile indicator on the probes. Remove all probes, test leads and accessories that are not in use.

Use only correct Measurement Category (CAT), voltage, temperature, altitude, and amperage rated probes, test leads, and adapters for any measurement.

WARNING:To avoid electric shock, keep the probe wire as far from the tip and high voltage circuits as possible. The probe wire voltage rating is less than the probe tip voltage rating. 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 for a replacement.

Beware of high voltages

Understand the voltage ratings for the probe you are using and do not exceed those ratings. Two ratings are important to know and understand:

• The maximum measurement voltage from the probe tip to the probe reference lead.
• The maximum floating voltage from the probe reference lead to earth ground.

These two voltage ratings depend on the probe and your application. Refer to the Specifications section of the manual for more information.

WARNING:To prevent electrical shock, do not exceed the maximum measurement or maximum floating voltage for the oscilloscope input BNC connector, probe tip, or probe reference lead.

These terms may appear in this manual:

WARNING:Warning statements identify conditions or practices that could result in injury or loss of life.

CAUTION:Caution statements identify conditions or practices that could result in damage to this product or other property.

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.

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. (This symbol may also be used to refer the user to ratings in the manual.)

The following symbols(s) may appear on the product.

CAUTION: Refer to Manual

This section lists the safety standards with which the product complies and other safety compliance information.

This section provides information about the environmental impact of the product.

Product end-of-life handling

Observe the following guidelines when recycling an instrument or component:

Equipment recycling

Production of this equipment required the extraction and use of natural resources. The equipment may contain substances that could be harmful to the environment or human health if improperly handled at the product’s end of life. To avoid release of such substances into the environment and to reduce the use of natural resources, we encourage you to recycle this product in an appropriate system that will ensure that most of the materials are reused or recycled appropriately.

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 (http://www.tek.com/productrecycling).

The added functionality, higher density, and faster switching speeds of modern electronic products drive the need for lower supply voltages. Designers need to zoom-in on power rails to look for high-frequency intruder signals, measure ripple and analyze coupling effects with tighter tolerances. Oscilloscopes often don't have enough offset to shift the noise and ripple on DC rails to the center of the screen to make the needed measurements.

The TPR1000 and TPR4000 probes provide a low-noise measurement solution (oscilloscope and probe), which is critical to not confuse the noise of the oscilloscope and probe with the noise and ripple of the DC supply being measured. The higher input impedance in the probes minimize the oscilloscope loading effect on DC rails (50 kΩ at DC). The probes provide higher bandwidth to see more signal content (harmonics, faster ripples, etc.) on DC rails that could affect data signals, clocks, etc.

The TPR1000 and TPR4000 provide a best-in-class integrity solution for power integrity and validation engineers in the high speed (μP), low power (mobile) and switched-mode power supply markets. The probes are designed to offer the lowest noise with high bandwidth at 60 V offset, flexible connectivity options to cover customers challenges, and software packages to cover the digital power management market.

The block diagram shows the major circuit blocks or modules in the TPR1000 and TPR4000 probes.

The TPR1000 and TPR4000 function by extending the oscilloscopes offset capability while maintaining a low noise signal path into the instrument. The linear dynamic range can be moved around the offset voltage operating window using the DC offset control into the LF amplifier. The LF amplifier can be disconnected when DC offset is not needed by setting the coupling mode to DC reject in the instrument vertical menu. The bypass capacitor acts as a low impedance path for high frequency components while blocking low frequency components. Because the TPR1000 and TPR4000 are designed for measuring the low source impedances of power distribution planes it is not recommended to measure devices with source impedances >1 Ω as it may cause distortion of the waveform.

A description of the controls and indicators on the compensation box.

When the probe is powered on, the multicolor Status LED indicates the status of the probe.

Note:The TPR1000 and TPR4000 power rail 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.

The probe may operate with older versions of instrument software. However, older software versions than those listed are not guaranteed to provide full probe functionality.

The probe is electrically protected against static voltage. However, applying voltages above its design limits may damage the probe tip amplifier.

The probe head amplifier used by the probe has a limited linear operating range. To keep the input linearity error within specification, you must limit the signal input voltage to ±1 V.

The following describes how to connect to MMCX accessories.

Gently insert the MMCX end of the cable into one of the following accessories: micro-coax tip, solder flex tip, u.fl adapter, or MMCX to square pin Y-lead adapter, until you feel the connector engage. To remove an accessory, gently pull from the MMCX connection point, being careful to only grip the knurled metal area of the connector.

The following describes how to connect to solder-in accessories.

There are two types of solder-in accessories, micro-coax and flex tips.

Micro-coax tip

For convenient first-time use, the solder micro-coax tips are shipped pre-trimmed and ready to be soldered to the test point. You can reuse a tip by removing the tip from the solder joint and then trimming the wire insulation back to expose the center pin and ground shield on the tip cable.

Flex tip

To attach the solder flex tip, first solder the enameled self-fluxing copper wire (standard accessory) to the test point. Feed the wire through the vias on the end of the flex tip, and then apply a small amount of solder to the vias to attach the wire to the tip.

The tripod probe support adds stability to square-pin mounted test points.

For more stability, use glue to attach the tripod legs to the DUT circuit board.

The optional browser kit contains the following parts: up to 1 GHz browser probe, square pin Y-lead adapter, micro-SMD clip, three ground leads, and four replacement probe-tip pins.

WARNING:To prevent injury to the operator or damage to the probe, oscilloscope, and DUT, do not touch the probe ground to any point that is not at the same potential as the chassis ground of the oscilloscope. The probe ground must be connected to the same potential as the chassis ground of the oscilloscope.

Installing ground leads

To obtain accurate measurements, always attach a ground lead to the probe tip before making measurements. It is recommended that you use the shortest ground lead that will function in your electrical application. The following illustration shows the browser probe tip, the tip cover, and the three types of grounds leads supplied with the browser.

• To install the spring ground lead, slide the ground lead over the probe tip until it seats around the metal part of the probe-tip housing.
• To install the alligator ground lead, slide the ground lead prongs over the exposed metal between the plastic probe-tip sections.
• To install the blade ground lead, locate the slot in the probe-tip housing as shown below. Slide the ground lead over the probe tip until the blade slides into the slot.

Connecting the Y-lead adapter and micro-SMD clip

The browser kit includes a Y-lead adapter and a micro-SMD clip that connect as shown below. The Y-lead adapter can also connect to square pins.

Replacing browser-tip pins

To remove the browser-tip pin, use pliers to grasp the pin and gently pull it out of the tip housing. To install a new browser-tip pin, select between a solid (silver colored) or spring-loaded (gold colored) pin, and then use pliers to gently insert the pin into the browser-tip housing until you feel the pin press against the bottom of the housing.

When you are probing a circuit, you should always use as short a ground lead as possible between the probe head and circuit ground.

The following illustration shows 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.

When you touch your probe tip to a circuit element, you are introducing a new resistance, capacitance, and inductance into the circuit.

You can determine if ground lead effects may be a problem in your application if you know the self-inductance (L) and capacitance (C) of your probe and ground lead. Calculate the approximate resonant frequency (f₀) at which this parasitic circuit will resonate with the following formula.

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.

The low-inductance ground contacts described in Accessories can help you reduce the effects of ground lead inductance on your measurements.

Each probe is shipped with one TPR4KIT accessory kit containing the following items.

Item	Image
1.3 m cable, SMA male-to-MMCX male, 50 Ω
1.3 m cable, SMA male-to-SMA male, 50 Ω
Y-lead adapter, MMCX female-to-0.8 mm sockets
Adapter cable, MMCX female-to-U.FL female, 50 Ω
Adapter, MMCX female-to-square pin (0.062 centers)
DUT interface solder pins, set of 20
Soldering aide tool, 0.062 solder pins over SMT
Solder-in cable adapter, MMCX female-to-solder micro-coax tip, 50 Ω, set of 3
Solder-in cable adapter, MMCX female-to-solder flex-paddle tip, 50 Ω, set of 3
Wire card, solderable enameled self-fluxing copper wire (for use with the solder-in tips)
Probe tip tripod support (with living hinge)
Marker bands, set of 5 (for probe identification)

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.

Typical characteristics describe typical, but not guaranteed performance.

Nominal characteristics describe guaranteed traits, but the traits do not have tolerance limits.

Characteristic	Description
Compatibility	Oscilloscopes equipped with the TekVPI interface
Instrument coupling	DC, LF-Reject
Input offset requestable range	±60 V
Non-destructive input voltage range (AC frequency above 10 kHz)	2.5 VRMS, with peaks ≤±20 V (DF 6.25%)
Input connector on compensation box	SMA-female jack
Output connector on cable	SMA-male plug
DUT connector on standard cable	MMCX-male plug
DUT connector on optional cable	SMA-male plug
	SMP-female jack
Insulation voltage rating	±30 V RMS (AC)
	±42 V Peak (pk-pk)
	±60 V DC (DC)

Specifications for the TPR1000 and TPR4000 accessories are either warranted and typical characteristics.

Table 2. Typical mechanical characteristics

Item number	Dimensions
Rigid Browser Tip
Pogo Browser Tip
Browser
Browser Spring Ground
Browser Blade Ground
Browser Alligator Ground
TPRSIACOAX
TPRSIAFLEX
MMCX to U.FL adapter
1.3 m SMA to MMCX Cable
1.3 m SMA to SMA Cable
2 m SMA to MMCX Cable
Browser to Square-pin adapter
MMCX to Square-pin adapter
SMT Component Clip

Use the following procedures to set up and warm up the equipment to test the probe.

Use the analyzer setup diagram for the analog bandwidth performance check.

Use the test record to record the values of the performance verification checks.

Protect the probe from adverse weather conditions. The probe is not waterproof.

CAUTION:To prevent damage to the probe, do not expose it to sprays, liquids, or solvents. Avoid getting moisture inside the probe during exterior cleaning.

Do not use chemical cleaning agents; they may damage the probe. Avoid using chemicals that contain benzine, benzene, toluene, xylene, acetone, or similar solvents.

Clean the exterior surfaces of the probe with a dry, lint-free cloth or a soft-bristle brush. If dirt remains, use a soft cloth or swab dampened with a 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.

Use the following instructions for returning your instrument for service.

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/rma-request. When you request service, have the serial number, firmware, and software version of the instrument.

If you want to see the warranty or service agreements on your products, or if you want to create your own service price estimate, visit our quick service quote site at tek.com/service-quote.