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Probing principles

Probing principles

Read the helpful hints on the following pages to make probing easier and noise free.

Probe grounding

In addition to the (+) and (-) inputs on the probe
head, there is also a ground (common) input.
You can use the probe to take a differential
measurement regardless of whether the ground
is connected.

CAUTION.

To avoid damaging the circuitry

under test, connect the probe ground (common)
to a ground-reference point only.

See the technical reference manual on the CD
for more information.

TDP0500 & TDP1000 Quick Start User Manual

Содержание TDP0500

Страница 1: ...x TDP0500 TDP1000 500 MHz 1 GHz High Voltage Differential Probes ZZZ Quick Start User Manual P071197401 071 1974 01...

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Страница 3: ...TDP0500 TDP1000 500 MHz 1 GHz High Voltage Differential Probes ZZZ Quick Start User Manual xx www tek com 071 1974 01...

Страница 4: ...es that in all previously published material Specifications and price change privileges reserved TEKTRONIX and TEK are registered trademarks of Tektronix Inc KlipChip TekVPI and TwinFoot are trademark...

Страница 5: ...taxes and any other charges for products returned to any other locations This warranty shall not apply to any defect failure or damage caused by improper use or improper or inadequate maintenance and...

Страница 6: ......

Страница 7: ...Returning the probe for servicing viii Key features 1 Operating considerations 2 Installation 4 Connecting to the host instrument 4 Probe controls and indicators 5 Functional check 9 Required equipme...

Страница 8: ...tions 26 Using standard accessories 26 Optional accessories 35 Options 40 Probing principles 41 Probe grounding 41 Input impedance and probe loading 42 Maintenance 43 Host instrument firmware 43 Error...

Страница 9: ...the grounding conductor of the mainframe power cord To avoid electric shock the grounding conductor must be connected to earth ground Before making connections to the input or output terminals of the...

Страница 10: ...nditions 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 Symbols and...

Страница 11: ...General safety summary The following symbol s may appear on the product TDP0500 TDP1000 Quick Start User Manual v...

Страница 12: ...roperly 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 appropri...

Страница 13: ...st Time Operation Functional Check Operating Basics This Manual Specifications Performance Verification The Technical Reference Manual In depth oscilloscope operation user interface GPIB commands The...

Страница 14: ...carton having inside dimensions at least one inch greater than the probe dimensions The box should have a carton test strength of at least 200 pounds 2 Put the probe into an antistatic bag or wrap it...

Страница 15: ...eatures include DC to 500 MHz bandwidth TDP0500 or 1 GHz TDP1000 Selectable 42 V or 4 25 V DC peak AC differential input voltage ranges 42 V DC offset range 100 Hz 10 kHz 1 MHz and Full bandwidth limi...

Страница 16: ...25 V RMS Both ranges input referenced to ground Temperature Operating 0 to 40 C 32 F to 104 F Nonoperating 55 C to 75 C 67 F to 167 F Humidity Operating 30 C to 40 C 86 F to 104 F 0 90 RH Nonoperatin...

Страница 17: ...Operating considerations Figure 1 Voltage versus frequency derating curve TDP0500 TDP1000 Quick Start User Manual 3...

Страница 18: ...onnect the probe check the version requirements See page 43 Host instrument firmware 1 Slide the probe into the TekVPI receptacle The probe snaps when fully engaged When you connect the probe the host...

Страница 19: ...s in normal operating mode Press the Range button to toggle the range selection The corresponding LED lights to indicate the selected range NOTE The host instrument sets all probe settings to the last...

Страница 20: ...Ds Press the Bandwidth Limit button to select one of four limit values The corresponding LED lights to indicate the selected bandwidth limit When no LED is lit the probe is operating at full bandwidth...

Страница 21: ...mposed on a large differential offset component DC reject generates an internal offset that cancels the DC component of the signal Because the input is always directly coupled the DC reject mode does...

Страница 22: ...s are shown here This screen includes controls for probe functions that are not accessible on the probe such as AutoZero and Offset Other functions such as Bandwidth Limit can be controlled from both...

Страница 23: ...obes Technical Reference Manual Required equipment Description and quantity Performance requirement Recommended example 1 Oscilloscope TekVPI Interface Tektronix DPO7000 Series Y lead adapter 0 25 in...

Страница 24: ...channel 2 Use the Y lead Adapter and two SMT KlipChips to connect the probe tip to the PROBE COMP terminals on the oscilloscope 3 Press AUTOSET or adjust the oscilloscope to display the calibration w...

Страница 25: ...dividual calibration constants are stored for each probe on each channel NOTE Probe calibration functions are not available on all oscilloscope models Prerequisites The equipment must be warmed up for...

Страница 26: ...2 In the Status box check that pass is displayed 3 If the Instrument Calibration Status is not pass run the Signal Path Compensation routine Disconnect all probes and signal sources from the oscillosc...

Страница 27: ...Calibration 4 Connect the probe to the oscilloscope PROBE COMP connector 5 From the Vertical menu select Probe Cal TDP0500 TDP1000 Quick Start User Manual 13...

Страница 28: ...een 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 14 TD...

Страница 29: ...ze makes it easy to handle in tight areas 1 The probe tip sockets are sized to press onto two 0 025 inch pins spaced 0 100 inch apart 2 The ground socket provides a short ground path for ground connec...

Страница 30: ...xceeds the common mode signal range may produce an erroneous output waveform even when the differential mode specification is met To verify the common mode signal is within specification set the probe...

Страница 31: ...Basic operation Figure 2 Dynamic and Offset Limitations 4 25 V Range TDP0500 TDP1000 Quick Start User Manual 17...

Страница 32: ...Basic operation Figure 3 Dynamic and Offset Limitations 42 V Range 18 TDP0500 TDP1000 Quick Start User Manual...

Страница 33: ...oscilloscope We recommend that you perform the AutoZero routine first accessible through the probe Menu button and then adjust the offset to achieve optimal probe performance AutoZero NOTE For best a...

Страница 34: ...manual for specific instructions on using the offset control 1 Use the vertical position control to set a zero reference level on the oscilloscope display 2 Verify that the DC Reject LED on the probe...

Страница 35: ...e oscilloscope zero reference 5 If you change the volts division setting adjust the offset to keep the trace on the zero reference level NOTE The probe has two linear operating ranges 4 25 V and 42 V...

Страница 36: ...and a DPO7000 oscilloscope The oscilloscope is loaded with the DPOPWR power measurement software application to solve a typical test problem Measure switching loss In this example you want to minimize...

Страница 37: ...4 Figure 4 Power supply test points 2 Run the DPOPWR application 3 Select the Power Device tab 4 Select Switching Loss option and press the Configure button 5 In the Source Configuration Panel set th...

Страница 38: ...Applications 7 Select Switching Loss measurement 8 Select Run to acquire data and display the results See Figure 5 on page 25 24 TDP0500 TDP1000 Quick Start User Manual...

Страница 39: ...Applications Figure 5 Switching loss results display TDP0500 TDP1000 Quick Start User Manual 25...

Страница 40: ...ntities differ from the actual number of accessories included with the probe Using standard accessories Tip saver Use the Tip Saver to prolong the life of your probe tip contacts The Tip Saver bears t...

Страница 41: ...ted leads and adapters WARNING The tips have sharp points To prevent injury use care when you handle the tips 1 Push the tip into the socket until it is seated You can use either end of the tip Do not...

Страница 42: ...The pins have sharp points To prevent injury use care when you handle the adapter 1 Push the adapter into the probe until it is seated Do not force the tip 2 Adjust the spacing between the pins to sui...

Страница 43: ...ters include integral resistors for best signal fidelity The 1 inch adapter can span up to 1 5 inches between test points and the 3 inch adapter can span up to 5 5 inches NOTE The 3 inch adapter perfo...

Страница 44: ...250 MHz We recommend that you use the 250 MHz bandwidth filter with this adapter The Y lead adapter accepts any of the probe tips or adapters 1 Push the adapter into the probe until it is seated 2 Co...

Страница 45: ...250 MHz bandwidth filter with this adapter 1 Press the Y lead into the handle of the KlipChip test clip 2 Turn the KlipChip body to allow better probe orientation 3 If necessary bend the flexible sle...

Страница 46: ...e socketed end of the lead to any of the probe tips or adapters You can also connect to 0 025 inch square pins in your circuit When selecting the grounding connection maintain as short a ground path a...

Страница 47: ...ch one band to the probe cable and another one of the same color near the probe compensation box 2 Connect the probe to the channel that matches the color of the band Five colored pairs are included w...

Страница 48: ...to hold the probe the accessories and the manual 1 Place the probe accessories and manual in the carrying case 2 Close the carrying case to transport the accessories to another location or for storage...

Страница 49: ...Micro Grabber to probe the leads on integrated circuits that are surface mounted The IC Micro Grabbers are easiest to use with the Y Lead Adapter or Ground wires 1 Push the IC Micro Grabber onto the w...

Страница 50: ...n spacing adjusts from 0 to 0 31 in 1 Push the adapter into the probe tip until it is seated Do not force the adapter Also be careful not to injure yourself on the sharp points 2 Adjust the spacing be...

Страница 51: ...lexible fingers adapt to a range of lead spacings 1 Push the adapter into the probe tips until it is seated 2 Touch the adapter to your integrated circuit leads One side of the adapter pins are insula...

Страница 52: ...Probe your circuit Order Tektronix part number 016 1782 XX qty 6 BNC to Probe tip adapter Use this adapter for the performance verification tests The adapter provides connections for signal sources t...

Страница 53: ...do a performance verification on the probe It provides an SMA connector in the probe signal path for internal probe measurements Instructions for use are included in the performance verification proc...

Страница 54: ...on data report Option D3 Calibration data report 3 years with Option C3 Option D5 Calibration data report 5 years with Option C5 Option R3 Repair service 3 years Option R5 Repair service 5 years Manua...

Страница 55: ...probe head there is also a ground common input You can use the probe to take a differential measurement regardless of whether the ground is connected CAUTION To avoid damaging the circuitry under test...

Страница 56: ...uts from loading the signal sources The greater the source impedances and the higher the signal frequencies the more you should take these factors into account The more the impedance of the signal sou...

Страница 57: ...rmware Instrument Firmware Version DPO7000 series V2 0 0 or higher To check the firmware version on Windows based instruments from the menu bar click Help About TekScope On Linux based instruments pre...

Страница 58: ...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...

Страница 59: ...robe 44 Connecting the probe 4 D Documentation vii 40 E Environmental considerations vi Error condition 43 F Features 1 Frequency derating graph 3 Functional check 9 G Ground lead 3 lead 32 inductance...

Страница 60: ...Index R Range LED 43 Related documentation vii Replacement parts 44 Returning the probe viii S Safety Summary iii Signal path compensation 12 T TekVPI 4 46 TDP0500 TDP1000 Quick Start User Manual...

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