Keysight InfiniiMax III+ Series User Manual
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Keysight InfiniiMax III+ Series User Manual

Keysight InfiniiMax III+ Series User Manual

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Keysight
N2830/1/2A and N7000/1/2/3A
InfiniiMax III+ Probes
User's Guide

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Summary of Contents for Keysight InfiniiMax III+ Series

  • Page 1 Keysight N2830/1/2A and N7000/1/2/3A InfiniiMax III+ Probes User’s Guide...
  • Page 2 No additional government mation contained herein. Should requirements beyond those set forth in the Keysight and the user have a separate EULA shall apply, except to the extent that written agreement with warranty terms those terms, rights, or licenses are explicitly...

  • Page 3: Table Of Contents

    Contents 1 Using InfiniiMax III+ Series Probes 5 Inspecting the Probe and Its Accessories Introduction Compatible Oscilloscopes To Avoid Damaging the Probe To Ensure Maximum Measurement Accuracy To Use InfiniiMode To Probe Ungrounded Devices To Probe Single-Ended Signals with a Differential Head...
  • Page 4 N5439A ZIF Probe Head with N5440A ZIF Tip N5439A ZIF Probe Head with N2838A ZIF Tip N2836A 26 GHz Solder-In Probe Heads N5441A 16 GHz Solder-In Probe Head N5445A Browser Probe Head N5444A SMA Probe Head InfiniiMax III+ Series Probes User’s Guide...

  • Page 5: Using Infiniimax Iii+ Series Probes

    To Measure Small Signals on a Large DC Level Slew Rate Requirements for Different Technologies Available Accessories Safety Information Service This user’s guide covers the N2830/1/2A and N7000/1/2/3A InfiniiMax III+ series differential probes that are shown in Figure Figure 1 InfiniiMax III+ Series Probes...

  • Page 6: Inspecting The Probe And Its Accessories

    Sales Office. If the shipping container is damaged, or the cushioning materials show signs of stress, notify the carrier as well as your Keysight Technologies Sales Office. Keep the shipping materials for the carrier’s inspection. The Keysight Technologies office will arrange for repair or replacement at Keysight Technologies’ option without waiting for claim settlement.
  • Page 7 Using InfiniiMax III+ Series Probes Figure 2 N2830A-Series Probe and Accessories in Supplied Case InfiniiMax III+ Series Probes User’s Guide...
  • Page 8 Using InfiniiMax III+ Series Probes Figure 3 N7000A-Series Probe and Accessories in Supplied Case InfiniiMax III+ Series Probes User’s Guide...

  • Page 9: Introduction

    16. CAUTION Differential probe heads offer easy measurement of differential signals and greatly improve the measurement of single-ended signals. Single-ended probe heads offer extremely small size for probing single-ended signals in confined spaces. InfiniiMax III+ Series Probes User’s Guide...
  • Page 10 Using InfiniiMax III+ Series Probes Figure 4 InfiniiMax III and III+ Family Diagram with Compatible Scopes and Probe Heads (not to scale) InfiniiMax III+ Series Probes User’s Guide...
  • Page 11 Using InfiniiMax III+ Series Probes Figure 5 N2830/1/2A Probes InfiniiMax III+ Series Probes User’s Guide...
  • Page 12 Using InfiniiMax III+ Series Probes Figure 6 N7000/1/2/3A Probes InfiniiMax III+ Series Probes User’s Guide...
  • Page 13 The N7000/1/2/3A probes use the AutoProbe II 3.5 mm interface, which is compatible with 90000 Q/V/X/Z-series oscilloscopes without the use of an adapter Figure 7 N2830/1/2A’s AutoProbe I Interface Connector Figure 8 N7000/1/2/3A’s AutoProbe II Interface Connector InfiniiMax III+ Series Probes User’s Guide...
  • Page 14 When multiple probes are connected to the oscilloscope, use the channel identification rings to associate the channel inputs with each probe. Place one colored ring near the probe’s channel connector and place an identical color ring near the probe head. InfiniiMax III+ Series Probes User’s Guide...

  • Page 15: Compatible Oscilloscopes

    90000 Q, V, X, and Z-series Infiniium oscilloscopes. Use an N5477A adapter to connect to the 86100D oscilloscope. The N2830/1/2A and N7000/1/2/3A probes are not compatible with Infiniium 9000 Series, InfiniiVision and any old generation Keysight, Agilent, or HP oscilloscopes. Table 2...

  • Page 16: To Avoid Damaging The Probe

    ESD wrist strap and ensure that cables and probe heads are discharged before being connected. All work, including connecting probe amplifiers to the oscilloscope, should be performed at a static-safe work station as shown in Figure InfiniiMax III+ Series Probes User’s Guide...
  • Page 17 Using InfiniiMax III+ Series Probes Figure 10 Static-Safe Work Station Many scopes including Keysight's 90000X or V series have a front-panel ground socket. You can plug the wrist strap into the ground socket as seen in the following picture. Figure 11 Wrist Strap Connected to Oscilloscope Ground Socket...
  • Page 18 When probing with an N2848A, always disconnect the probe head from probe tip CAUTION before unsoldering, moving to a new position, and resoldering the tip. This is because some soldering-iron tips can hold a charge which can damage the probe amplifier. InfiniiMax III+ Series Probes User’s Guide...
  • Page 19 Safely disconnecting the probe from an oscilloscope Always disconnect the probe head from the probe amplifier before: • disconnecting the probe amplifier from the oscilloscope. • switching the probe amplifier from one oscilloscope channel to another. InfiniiMax III+ Series Probes User’s Guide...
  • Page 20 Never allow the probe head to be connected to the probe amplifier, if the probe CAUTION amplifier is not connected to the oscilloscope channel. Figure 13 Probe Improperly Disconnected from Oscilloscope while Probe Head is Connected to the Probe Amplifier InfiniiMax III+ Series Probes User’s Guide...

  • Page 21: To Ensure Maximum Measurement Accuracy

    Solder-In (Vertical) selection applies S parameters for the N2836A head held in a vertical position (perpendicular to the surface of the DUT). To display the dialog box, click Probes > Channel Setup Menu. Figure 14 Select Probe Head Dialog Box InfiniiMax III+ Series Probes User’s Guide...

  • Page 22: To Use Infiniimode

    When probing a differential or common mode signal, connect the probe tips as shown in Figure 15. The positive (+) and negative (–) leads can be reversed by swapping the connections at the probe amplifier. InfiniiMax III+ Series Probes User’s Guide...
  • Page 23 - - - - - - - - - - - - - - - 2.5V Single-Ended Measurement with +Lead 4V 0V – – +lead Single-Ended Measurement with –Lead 1V 0V – – lead – InfiniiMax III+ Series Probes User’s Guide...
  • Page 24 In the dialog box, click the Probe Amp block to open the Probe Amplifier dialog box. Select the InfiniiMode measurement mode: Differential, Single-Ended A, Single-Ended B, or Common Mode. The default setting is Differential. Figure 16 Probe Configuration Dialog Box and Probe Amplifier Dialog Box InfiniiMax III+ Series Probes User’s Guide...

  • Page 25: To Probe Ungrounded Devices

    Failure to connect the ground may result in the display of inaccurate waveforms. N OT E Figure 17 Grounding the DUT to an S-Series Oscilloscope InfiniiMax III+ Series Probes User’s Guide...

  • Page 26: To Probe Single-Ended Signals With A Differential Head

    Notice that the head’s “–” lead is connected to ground. Figure 18 Connecting a Differential Head to a Single-Ended Signal InfiniiMax III+ Series Probes User’s Guide...

  • Page 27: To Measure Small Signals On A Large Dc Level

    DC component of the input signal so that the signal can better utilize the dynamic range of the input. This is possible due to the designs having summing nodes at the amplifier input. For information InfiniiMax III+ Series Probes User’s Guide...
  • Page 28 Using InfiniiMax III+ Series Probes on properly using probe offset to ensure that you can get the maximum performance and dynamic range from the InfiniiMax probe, refer to Keysight application note 5988-9264EN. Figure 20 Probe Offset Dialog Box (Probe Setting) Understanding how to properly use offset for your application can ensure that you get the maximum performance and dynamic range from your probes.
  • Page 29 Single-Ended Probe Head. Single-ended probe tips do not have a minus lead so nothing is plugged into the probe amplifier’s “–” input. This is normal and does not cause any problems. InfiniiMax III+ Series Probes User’s Guide...

  • Page 30: Slew Rate Requirements For Different Technologies

    Gigabit Ethernet 1000Base-CX YES 15.5 RapidIO 8/16 2Gb 14.4 Infiniband 2.5Gb HyperTransport 1.6Gb SATA (1.5Gb) USB 2.0 DDR 200/266/333 AGP-8X * The probe specification is 18 V/ns † The probe specification is 30 V/ns InfiniiMax III+ Series Probes User’s Guide...
  • Page 31 Using InfiniiMax III+ Series Probes Figure 21 Slew Rates of Popular Technologies Compared to Maximum Probe Slew Rates InfiniiMax III+ Series Probes User’s Guide...

  • Page 32: Available Accessories

    Besides the N5441A probe head, none of the other probe heads are designed for CAUTION extreme temperature testing. For more information about the extreme temperature probing solution for Keysight oscilloscopes, check out the Keysight data sheet with the literature number, 5990-3504EN. To ensure a high-quality measurement, the N5450B cable set have been phase-matched at the factory.
  • Page 33 Two adapters are available for connecting probes to the Infiniium 86100D DCA-X sampling oscilloscope or other RF instruments. The N1022B sampling scope adapter allows you to connect N2830/1/2A probes. The N5477A sampling scope adapter allows you to connect N7000/1/2A probes. InfiniiMax III+ Series Probes User’s Guide...

  • Page 34: Safety Information

    Do not operate in wet/damp environments. Keep product surfaces dry and clean. Do Not Operate With Suspected Failures. Refer to qualified service personnel. WARNING Never leave the probe connected to a conductor while it is not connected to an WARNING oscilloscope or voltage measuring instrument. InfiniiMax III+ Series Probes User’s Guide...
  • Page 35 You must not negate the protective action by using an extension cord (power cable) without a protective conductor (grounding). Grounding one conductor of a two-conductor outlet is not sufficient protection. InfiniiMax III+ Series Probes User’s Guide...
  • Page 36 Do not use repaired fuses or short-circuited fuse holders. To do so could cause a shock or fire hazard. Capacitors inside the instrument may retain a charge even if the instrument is WARNING disconnected from its source of supply. InfiniiMax III+ Series Probes User’s Guide...

  • Page 37: Service

    If this is the case, the probe head is no longer useful. A new probe head will need to be obtained either through purchase or warranty return. InfiniiMax III+ Series Probes User’s Guide...
  • Page 38 Perform the following steps before shipping the probe back to Keysight Technologies for service. Contact your nearest Keysight sales office for information on obtaining an RMA number and return address. Write the following information on a tag and attach it to the malfunctioning equipment.

  • Page 39: Using Infiniimax Iii+ Probe Heads

    Keysight InfiniiMax III+ Series Probes User’s Guide 2 Using InfiniiMax III+ Probe Heads Recommended Configurations at a Glance N5444A InfiniiMax III 2.92 mm/3.5 mm/SMA Probe Head N5439A InfiniiMax III ZIF Probe Head N5445A InfiniiMax III Differential Browser Probe Head N5441A InfiniiMax III Solder-In Head...

  • Page 40: Recommended Configurations At A Glance

    N5441A InfiniiMax III Solder-In Head (Refer to page 57.) N2830A: 4 77 fF 105 fF Differential and Single-ended signals N2831A: 8 Economical semi-permanent connection N2832A: 13 Extreme Temperature N7000A: 8 N7001A: 13 N7002A: 16 N7003A: 20 InfiniiMax III+ Series Probes User’s Guide...
  • Page 41 InfiniiMode Compatible N2832A: >12 Easy head-to-tip connection in tight space N7000A: 8 Solder-in hands free connection N7001A: 13 N7002A: 16 N7003A: >16 * Capacitance seen by differential signals † Capacitance seen by single-ended signals InfiniiMax III+ Series Probes User’s Guide...

  • Page 42: N5444A Infiniimax Iii 2.92 Mm/3.5 Mm/Sma Probe Head

    Bandwidth Probe Amplifier Probe Amplifier N2830A 4 GHz N7000A 8 GHz N2831A 8 GHz N7001A 13 GHz N2832A 13 GHz N7002A 16 GHz N7003A 20 GHz Figure 22 N5444A InfiniiMax III 2.92mm/3.5mm/SMA Probe Head InfiniiMax III+ Series Probes User’s Guide...
  • Page 43 Also, ensure that the plastic caps that are provided with these cables are installed when the cables are not in use. InfiniiMax III+ Series Probes User’s Guide...
  • Page 44 Using InfiniiMax III+ Probe Heads For details on the N5448B cable, refer to its guide available in the Document Library tab of this product’s page on www.keysight.com. Probe Offset Calibration with the N5444A To achieve more accurate probe offset calibration with the N5444A, an SMA shorting adapter is required.

  • Page 45: N5439A Infiniimax Iii Zif Probe Head

    N5447A The N5447A ZIF tip is not 5 mil to 80 mil compatible with the (0.127 mm to 2 mm) N2830/1/2A or N7000/1/2/3A probes. Compatible only with InfiniiMax III N2800/1/2/3A probes. InfiniiMax III+ Series Probes User’s Guide...
  • Page 46 73. The ceramic ZIF tips are very fragile. They must be manufactured in this way in order to CAUTION meet the high-performance, high bandwidth applications they are intended for. Be extremely careful when handling. InfiniiMax III+ Series Probes User’s Guide...
  • Page 47 When soldering the tip to your DUT, use the tip handle to hold the tip. This allows you to N OT E position these small tips without damaging them. Do not dwell on this solder joint. CAUTION InfiniiMax III+ Series Probes User’s Guide...
  • Page 48 ZIF probe head (see Figure 30) and slide the probe head onto the tip. Pressing on this lever removes the clamping force of the connector and enables you to insert or remove ZIF tips. InfiniiMax III+ Series Probes User’s Guide...
  • Page 49 To move the probe head to a different tip, press the lever and remove the probe head from the ZIF tip. The ZIF tip remains soldered to the DUT. Then, simply connect the ZIF head to another ZIF tip at a different location on the DUT. InfiniiMax III+ Series Probes User’s Guide...
  • Page 50 Using InfiniiMax III+ Probe Heads Figure 32 Probe Oriented Perpendicular to Device InfiniiMax III+ Series Probes User’s Guide...

  • Page 51: N5445A Infiniimax Iii Differential Browser Probe Head

    The headlight intensity can be controlled from the oscilloscope’s Probe Amplifier dialog box when using an N2830/1/2A or N7000/1/2/3A probes. On N7000/1/2/3A probes, you can also use the Light button. Pressing and holding this button will ramp the intensity of the headlight. InfiniiMax III+ Series Probes User’s Guide...
  • Page 52 Figure 35) to adjust the tip spacing from 20 to 125 mil (0.5 mm to 3.1 mm). Do not force the adjustment near the end of its range. Figure 35 Adjusting the Tip Span InfiniiMax III+ Series Probes User’s Guide...
  • Page 53 There are two holes on the back side of the browser. Use these holes to mount the browser to a customer designed holder. Figure 37 below shows the dimensions of these mounting holes. Figure 37 Dimensions of Mounting Holes InfiniiMax III+ Series Probes User’s Guide...
  • Page 54 The browser’s protective cap should be kept on the browser at all times except when CAUTION probing. Always remove the browser from the device under test (DUT) before disconnecting the CAUTION probe amp from the oscilloscope. InfiniiMax III+ Series Probes User’s Guide...
  • Page 55 While holding the browser, loosen the main knob and position the probe. Use the browser’s own weight to depress the tips, and tighten the main knob to lock the probe’s position. InfiniiMax III+ Series Probes User’s Guide...
  • Page 56 Using InfiniiMax III+ Probe Heads Figure 41 Using the Browser with the N2787A 3D Probe Positioner InfiniiMax III+ Series Probes User’s Guide...

  • Page 57: N5441A Infiniimax Iii Solder-In Head

    80. Wires" The wires on the N5441A are fragile. They must be manufactured in this way in order CAUTION to meet the high-performance, high bandwidth applications they are intended for. Be careful when handling. InfiniiMax III+ Series Probes User’s Guide...
  • Page 58 Tin the leads with a small amount of solder. Figure 43 Tin the Leads Use tweezers to form the probe head wires to fit your DUT’s geometry. Flux the DUT leads and your probe head wires. InfiniiMax III+ Series Probes User’s Guide...
  • Page 59 Position the probe head wires on the DUT leads and quickly re-flow the solder as shown in Figure Do not leave the iron in contact with the probe head for more than a few seconds at a CAUTION time. Figure 45 Positioning Wires InfiniiMax III+ Series Probes User’s Guide...

  • Page 60: N2836A Infiniimode Solder-In Head

    N7003A 16 GHz To install or repair N2838A resistor leads, refer to “Replacing Axial Resistor N OT E on page 76. Tips" For performance plots, refer to Chapter 6, “Performance Plots. N OT E InfiniiMax III+ Series Probes User’s Guide...
  • Page 61 Using InfiniiMax III+ Probe Heads Figure 46 Probe Head Connection to DUT (InfiniiMode) InfiniiMax III+ Series Probes User’s Guide...
  • Page 62 If you need to position the mini-axial lead resistors different than shown in this figure (that is, resistor bodies close together or spread way apart), use N2807A and N2808A PrecisionProbe products to perform an AC calibration of the probe. InfiniiMax III+ Series Probes User’s Guide...
  • Page 63 Tin the leads with a small amount of solder. Figure 50 Tin the Leads Use tweezers to form the probe head wires to fit your DUT’s geometry. Flux the DUT leads and your probe head wires. InfiniiMax III+ Series Probes User’s Guide...
  • Page 64 Position the probe head wires on the DUT leads and quickly re-flow the solder as shown in Figure Do not leave the iron in contact with the probe head for more than a few seconds at a CAUTION time. Figure 52 Positioning Wires InfiniiMax III+ Series Probes User’s Guide...

  • Page 65: N2848A Quicktip Infiniimode Probe Head

    QuickTip. For best performance, position the QuickTip vertically on the DUT. Because this is an InfiniiMode compatible head, the tip has two signal leads and two ground leads. To learn about InfiniiMode, refer to “To Use InfiniiMax III+ Series Probes User’s Guide...
  • Page 66 Figure 54 Probing with the N2848A Probe Head and QuickTip N2849A QuickTips are also compatible with N2851A QuickTip Probe Heads, which are designed for N OT E 1130/1/2/4A InfiniiMax I and 1168/9A InfiniiMax II probes. InfiniiMax III+ Series Probes User’s Guide...
  • Page 67 The QuickTips are very fragile. They must be manufactured in this way in order to meet CAUTION the high-performance, high bandwidth applications they are intended for. Be extremely careful when handling. InfiniiMax III+ Series Probes User’s Guide...
  • Page 68 Use compressed air or a cloth to remove any loose dirt. Gently rub a small piece of tack putty (supplied with the probe) against the magnetic connections to clean off any remaining surface grime. Figure 55 N2848A Head Before and After Cleaning InfiniiMax III+ Series Probes User’s Guide...

  • Page 69: N2835A Infiniimax Iii+ Differential Connectivity Kit And Accessories

    N2849A InfiniiMax QuickTip Tips Kit 2 kits (4 tips in N2849A each kit) N5445A InfiniiMax III Browser Probe Head N5445A Replacement Tips N5476A Tweezer for replacing tips N5445-23801 Screw Driver N5445-23802 Protective End Cap N5445-44101 InfiniiMax III+ Series Probes User’s Guide...
  • Page 70 Using InfiniiMax III+ Probe Heads Table 16 Supplied Accessories (Sheet 2 of 2) Part Description Supplied Number Ground Blades N5445-68700 InfiniiMax III+ Series Probes User’s Guide...

  • Page 71: Strain Relieving The Probe Heads

    Tack-putty Keysight recommends the use of tack putty for securing both probe heads and amplifiers. Tack putty can be ordered using part number N5439-65201. Wrap a small amount of tack-putty around your probe head cables, taking care to not pinch them.
  • Page 72 Only use low-temperature hot glue. To remove the hot glue, warm it with a heat gun CAUTION set on low. Only heat the hot glue enough to remove it. Figure 59 Probe Secured Using Low-Temperature Hot Glue InfiniiMax III+ Series Probes User’s Guide...

  • Page 73: Soldering Tips

    • Solder only the tip of the wire onto your DUT. The solder should not get close to the existing solder ball on the tip. • Use enough flux when soldering the tips into a DUT. Figure 60 Applying Flux to Leads and Wires InfiniiMax III+ Series Probes User’s Guide...
  • Page 74 Using InfiniiMax III+ Probe Heads InfiniiMax III+ Series Probes User’s Guide...

  • Page 75: Maintaining Probe Heads

    Keysight InfiniiMax III+ Series Probes User’s Guide 3 Maintaining Probe Heads Replacing Axial Resistor Tips Replacing N5441A Probe Head Wires Many probe heads come equipped with replaceable resistor or wire tips which can be replaced or repaired. Using the procedures in this chapter, you can extend the life of the following items: •...
  • Page 76 ZIF tip away from the vise. When using tweezers, grip the tip either on the sides or top and bottom. When tightening the vise, use light force to avoid damaging the solder-in probe head. CAUTION InfiniiMax III+ Series Probes User’s Guide...
  • Page 77 To limit burning and damage to the PC board, do not keep the soldering iron in contact CAUTION with the tip any longer than is necessary. Excessive dwell time with the iron will permanently damage the flip-chip resistor. CAUTION InfiniiMax III+ Series Probes User’s Guide...
  • Page 78 Remove the soldering iron as soon as the lead falls into the hole. CAUTION Because the thermal mass of the joint is very small, extra dwell time with the soldering iron is N OT E not needed to ensure a good joint. InfiniiMax III+ Series Probes User’s Guide...
  • Page 79 Maintaining Probe Heads Using a digital volt meter, measure the resistance from the coax center conductor to the resistor tip. The DC resistance should measure 450 ohms. InfiniiMax III+ Series Probes User’s Guide...
  • Page 80 If using a vise, grip the tip on the sides with light force. When tightening the vise, use CAUTION light force to avoid damaging the solder-in probe head If using a tweezers clamp, grip the tip either on the sides or at the top and bottom. InfiniiMax III+ Series Probes User’s Guide...
  • Page 81 Apply heat quickly to avoid damaging your probe. CAUTION Figure 66 Removing the Old Wire If necessary, add a small amount of solder to the holes and apply flux. InfiniiMax III+ Series Probes User’s Guide...
  • Page 82 Do not dwell with the iron in contact with the probe head. CAUTION Figure 68 Adding a New Wire Figure 69 New Wires Properly Attached Trim any wire stubs on the probe head underside. InfiniiMax III+ Series Probes User’s Guide...
  • Page 83 Figure 71 Trim Gauge Placed on Wires Figure 72 Removing Excess Wire Check the DC resistance of each probe leg when you have replaced the wires. The correct resistance should be 450 ohms. InfiniiMax III+ Series Probes User’s Guide...
  • Page 84 Maintaining Probe Heads InfiniiMax III+ Series Probes User’s Guide...

  • Page 85: Calibration / Deskew Procedure

    Keysight InfiniiMax III+ Series Probes User’s Guide 4 Calibration / Deskew Procedure The Calibration/Deskew procedure described in this chapter is applicable to both N2830/1/2A and N7000/1/2/3A InfiniiMax III+ probes. The probe calibration and deskew is a guided procedure that you start from the oscilloscope’s Probe Calibration dialog box.

  • Page 86: Procedure

    Detach the probe head from the probe and Insert the probe into the top of the fixture holder as shown in Figure 76. The probe can slide up and down in the holder to adjust the probe head position. InfiniiMax III+ Series Probes User’s Guide...
  • Page 87 Figure 76 Inserting the Probe Head Form the N5439A probe head ZIF tip wires as shown Figure 77. If you are using the browser probe head, you do not need to adjust the shape of the tips. InfiniiMax III+ Series Probes User’s Guide...
  • Page 88 Figure Figure 78 Connect the Head to the Probe Position the probe head wires (if you are using the ZIF or Solder-in probe heads) so they curl towards the scope as shown in Figure InfiniiMax III+ Series Probes User’s Guide...
  • Page 89 Cal Out or Aux Out connection. Light contact is all that is needed for the calibration. Never solder a probe tip to the thickfilm gold. The gold will immediately dissolve into CAUTION the solder and disappear. InfiniiMax III+ Series Probes User’s Guide...
  • Page 90 N OT E use the N2787A 3D Probe Positioner to hold the browser in place as shown here. The browser uses spring-loaded tips so you do not need much force to get a solid contact. InfiniiMax III+ Series Probes User’s Guide...
  • Page 91 Calibration / Deskew Procedure In the Probe Calibration dialog box, start the calibration. When the calibration has completed, perform the skew calibration. InfiniiMax III+ Series Probes User’s Guide...
  • Page 92 Calibration / Deskew Procedure InfiniiMax III+ Series Probes User’s Guide...

  • Page 93: Specifications And Characteristics

    Keysight InfiniiMax III+ Series Probes User’s Guide 5 Specifications and Characteristics N2830/1/2A Probe Amplifier Specifications and Characteristics N2830/1/2A Probe Head Characteristics N7000/1/2/3A Probe Amplifier Specifications and Characteristics N7000/1/2/3A Probe Head Characteristics Environmental Safety and Regulatory Information Probe Dimensions Probe Heads Dimensions...

  • Page 94: N2830/1/2A Probe Amplifier Specifications And Characteristics

    5:1 or 10:1. Automatically selected based 5:1 or 10:1. Automatically selected on volts-per-division (all modes) based on volts-per-division (all modes) Offset Range (for probing a single-ended ±16V ±6V without violating maximum input signal) power InfiniiMax III+ Series Probes User’s Guide...
  • Page 95 ¡18 GHz probe head and N2832A attenuation with 28 GHz N5444A 13 GHz probe amplifier probe head and N2832A 13 GHz probe amplifier Maximum Input Voltage 18 V CAT 1 without violating maximum peak peak input power InfiniiMax III+ Series Probes User’s Guide...

  • Page 96: N2830/1/2A Probe Head Characteristics

    13 GHz 33.4 ps 23.7 ps N5444A — — Differential: 13 GHz 33.4 ps 23.7 ps 2.92, 3.5 mm, SMA Single Ended: 13 GHz 33.4 ps 23.7 ps Common: 13 GHz 33.4 ps 23.7 ps InfiniiMax III+ Series Probes User’s Guide...

  • Page 97: N7000/1/2/3A Probe Amplifier Specifications And Characteristics

    5:1 or 10:1. Automatically selected based 5:1 or 10:1. Automatically selected on volts-per-division (all modes) based on volts-per-division (all modes) Offset Range (for probing a single-ended ±16V ±6V without violating maximum input signal) power InfiniiMax III+ Series Probes User’s Guide...
  • Page 98 ¡18 GHz probe head and N7001A attenuation with 28 GHz N5444A 13 GHz probe amplifier probe head and N7001A 13 GHz probe amplifier Maximum Input Voltage 18 V CAT 1 without violating maximum peak peak input power InfiniiMax III+ Series Probes User’s Guide...

  • Page 99: N7000/1/2/3A Probe Head Characteristics

    19.3 ps length ground wires N5444A — — Differential: 20 GHz 21.7 ps 15.4 ps 2.92 mm, 3.5 mm, SMA Single Ended: 20 GHz 21.7 ps 15.4 ps Common: 20 GHz 21.7 ps 15.4 ps InfiniiMax III+ Series Probes User’s Guide...

  • Page 100: Environmental

    90% relative humidity at +65 °C (non-condensing) at +40 °C Altitude Up to 4,600 meters Up to 15,300 meters Power Requirements Voltages supplied by Keysight oscilloscope AutoProbe Interface. Weight approximately 0.69 kg Dimensions Refer to “Probe Dimensions" on page 102.

  • Page 101: Safety And Regulatory Information

    WEEE Directive Annex I, this product is classed as a “Monitoring and Control instrumentation” product. Do not dispose in domestic household. To return unwanted products, contact your local Keysight office, or refer to www.keysight.com for more information. InfiniiMax III+ Series Probes User’s Guide...

  • Page 102: Probe Dimensions

    Specifications and Characteristics Probe Dimensions Figure 82 N2830/1/2A Probe Dimensions Figure 83 N7000/1/2/3A Probe Dimensions InfiniiMax III+ Series Probes User’s Guide...

  • Page 103: Probe Heads Dimensions

    Specifications and Characteristics Probe Heads Dimensions All dimensions included in this section are in millimeters [inches]. N2836A InfiniiMax III Solder-in Head Dimensions N2838A InfiniiMax III PCB ZIF Tip with N5439A ZIF Head Dimensions InfiniiMax III+ Series Probes User’s Guide...
  • Page 104 Specifications and Characteristics N2848A InfiniiMax III QuickTIp Probe Head with N2849A QuickTip Dimensions InfiniiMax III+ Series Probes User’s Guide...
  • Page 105 Specifications and Characteristics N5440A/N5447A InfiniiMax III Ceramic ZIF Tip with N5439A ZIF Head Dimensions N5441A InfiniiMax III Solder-in Head Dimensions InfiniiMax III+ Series Probes User’s Guide...
  • Page 106 Specifications and Characteristics InfiniiMax III+ Series Probes User’s Guide...

  • Page 107: Performance Plots

    Keysight InfiniiMax III+ Series Probes User’s Guide 6 Performance Plots InfiniiMax III+ Probe System Responses N2848A QuickTip Head with N2849A QuickTip N2836A Solder-In Probe Head (Flat Orientation)

  • Page 108: Infiniimax Iii+ Probe System Responses

    N2836A solder-In probe head used with an N2832A 13 GHz InfiniiMax III+ probe amplifier. Figure 85 on page 109 shows the step response of the corrected system. Figure 84 Corrected System Frequency Response (N2836A Solder-In Head and N2832A Amplifier) InfiniiMax III+ Series Probes User’s Guide...
  • Page 109 6.6 GHz BW signal in red, and blue shows how well the probe system reproduces that step. The BW of the signal being measured is as high as it can be while limiting the measured rise time error to about 3%. InfiniiMax III+ Series Probes User’s Guide...
  • Page 110 13 GHz signal ≅ ------------------------------------------------ - probe-scope system 6.6 GHz ≅ × 1.97 probe-scope system signal This equation can be used to determine the probe-scope system BW needed to measure a certain BW signal. InfiniiMax III+ Series Probes User’s Guide...

  • Page 111: N2848A Quicktip Head With N2849A Quicktip

    Performance Plots N2848A QuickTip Head with N2849A QuickTip Figure 87 Input Impedances (Modeled and Measured) InfiniiMax III+ Series Probes User’s Guide...

  • Page 112: N2836A Solder-In Probe Head (Flat Orientation)

    Performance Plots N2836A Solder-In Probe Head (Flat Orientation) Figure 88 Input Impedances (Modeled and Measured) InfiniiMax III+ Series Probes User’s Guide...
  • Page 113 Performance Plots Figure 89 Common Mode Rejection Ratio (CMRR) of N2836A Solder-In Probe Head with N2832A Probe Amplifier Figure 90 Common Mode Rejection Ratio (CMRR) of N2836A Solder-In Probe Head with N7003A Probe Amplifier InfiniiMax III+ Series Probes User’s Guide...
  • Page 114 Performance Plots InfiniiMax III+ Series Probes User’s Guide...

  • Page 115: Performance Verification For N2830A-Series Probes

    This chapter describes the equipment and procedures needed to verify the performance of the N2830/1/2A InfiniiMax III+ probes. The performance measured in this chapter is of the probe by itself. Keysight high performance real-time scopes (and sampling scopes under certain conditions) will apply probe correction that will further enhance the performance of the probes.

  • Page 116: Bandwidth Performance Verification

    2.4 mm or 1.85 mm VNA calibration load with required return loss could be used. • Keysight N5477A AutoProbe II to 3.5 mm (f) Adapter. The N5477A comes with a required NMD 3.5 mm (m) to 3.5 mm (f) adapter (5062-1247).
  • Page 117 Connect the APC 3.5 (f-f) adapter, provided with the N5443A PV fixture, to the N5443A. as shown in Figure 92 on page 118. Use a small bench vise to steady the N5443A PV fixture on the test surface. InfiniiMax III+ Series Probes User’s Guide...
  • Page 118 Performance Verification for N2830A-Series Probes Figure 92 Test Setup for Measuring V of Probe InfiniiMax III+ Series Probes User’s Guide...
  • Page 119 125. Name the file: Adaptor_1250_1749___OutputSideOfFixture_N5443A.s2p. You can also copy the data from the Adobe AIR version of Keysight’s Probe Resource Center N OT E (PRC). Copying this data from the PRC is the simplest most reliable method to get the data. To download the PRC, visit http://www.Keysight.com/find/PRC.
  • Page 120 121. If it looks noticeably different, the probe tip wires may not be making contact under the pincher. Under “Trace/Math/Memory” select “Data->Memory”. This saves the de-embedded input voltage trace into the memory. InfiniiMax III+ Series Probes User’s Guide...
  • Page 121 129. Name the file Adapter_5062_1247___Adapter_N5477A.s2p. You can also copy the data from the Adobe AIR version of Keysight’s Probe Resource Center N OT E (PRC). Copying this data from the PRC is the simplest most reliable method to get the data. To download the PRC, visit http://www.Keysight.com/find/PRC.
  • Page 122 Performance Verification for N2830A-Series Probes Figure 95 Test Setup to Measure V of Probe InfiniiMax III+ Series Probes User’s Guide...
  • Page 123 50 MHz point (which is one division below center screen since screen is set to 3 dB/div). Verify that the BW is 13 GHz for the N2836A solder-in probe head and ≥ N2832A 13 GHz probe amp combination. Figure 96 De-Embedded V Trace InfiniiMax III+ Series Probes User’s Guide...
  • Page 124 Performance Verification for N2830A-Series Probes Figure 97 De-Embedded V Response of the Probe InfiniiMax III+ Series Probes User’s Guide...
  • Page 125 173559638.465103 -53.353535 46.144495 -0.039591 -14.466058 -0.034106 -14.495652 -52.681223 53.054380 177605987.284668 -52.395549 39.070167 -0.038666 -14.793912 -0.034887 -14.832523 -52.797494 49.218907 181746672.200541 -52.169589 35.688968 -0.038595 -15.133923 -0.035919 -15.178503 -53.030384 48.315967 185983892.553281 -52.903697 37.808367 -0.039749 -15.488188 -0.037303 -15.534312 -53.432713 51.562899 InfiniiMax III+ Series Probes User’s Guide...
  • Page 126 1047466733.847416 -38.254716 -50.795831 -0.130664 -86.951714 -0.126013 -86.984689 -46.398595 -124.148154 1071887249.005892 -38.159836 -50.090886 -0.129842 -88.962105 -0.122894 -88.985826 -45.298698 -117.918878 1096877101.157453 -38.225707 -53.761634 -0.132812 -91.046094 -0.128113 -91.085312 -45.697061 -122.970507 1122449563.757208 -37.836836 -52.245928 -0.132701 -93.180867 -0.128419 -93.190744 -45.762256 -131.225754 InfiniiMax III+ Series Probes User’s Guide...
  • Page 127 6321668840.866945 -25.835170 -58.476787 -0.330668 -164.240450 -0.327882 -164.265167 -26.752500 -97.664878 6469051478.202085 -25.391882 -72.229600 -0.332763 -176.461341 -0.334055 -176.477867 -26.292509 -107.946307 6619870176.858158 -25.364054 -84.427633 -0.338164 171.041972 -0.339505 171.032422 -26.232417 -120.500485 6774205044.761139 -24.948364 -98.914889 -0.341380 158.272547 -0.341366 158.242604 -26.023987 -132.326935 InfiniiMax III+ Series Probes User’s Guide...
  • Page 128 31728703098.427670 -18.748424 57.068278 -0.801196 -112.022259 -0.836282 -112.293270 -20.219688 -105.626698 32468422318.080524 -14.659329 -55.335061 -0.919360 -174.054710 -0.905470 -174.339069 -15.122997 -111.544467 33225387263.857967 -11.577429 -135.909942 -1.104865 123.781065 -1.105881 123.849957 -12.199337 -156.048844 34000000000.000000 -13.297830 149.794119 -1.023492 60.693197 -1.035722 60.797201 -13.786461 155.311288 InfiniiMax III+ Series Probes User’s Guide...
  • Page 129 173559638.465103 -42.909791 -0.944266 -0.043269 -34.270456 -0.045335 -34.272347 -43.971845 19.963785 177605987.284668 -42.936844 -2.007719 -0.043736 -35.064303 -0.045706 -35.065048 -43.922539 18.497086 181746672.200541 -42.964615 -3.095965 -0.044215 -35.876657 -0.046085 -35.876231 -43.872372 16.996191 185983892.553281 -42.993126 -4.209583 -0.044704 -36.707951 -0.046473 -36.706325 -43.821333 15.460305 InfiniiMax III+ Series Probes User’s Guide...
  • Page 130 1047466733.847416 -37.120172 47.631732 -0.105015 154.471246 -0.099928 154.488197 -34.991473 42.159608 1071887249.005892 -36.904667 42.777190 -0.105853 149.692284 -0.100278 149.711962 -34.732623 35.894172 1096877101.157453 -36.725795 37.887590 -0.106574 144.802370 -0.100520 144.825144 -34.475950 29.536912 1122449563.757208 -36.466047 34.944479 -0.108067 139.791216 -0.102302 139.813052 -34.231961 23.929102 InfiniiMax III+ Series Probes User’s Guide...
  • Page 131 6321668840.866945 -30.158087 -105.894970 -0.242774 -158.110579 -0.240547 -158.085414 -31.502689 -42.731734 6469051478.202085 -30.450458 -134.916128 -0.241951 173.049026 -0.242164 173.068568 -32.526933 -62.970419 6619870176.858158 -31.320042 -167.491708 -0.245335 143.495903 -0.244212 143.553909 -33.370066 -75.705119 6774205044.761139 -32.297218 155.620110 -0.249495 113.283076 -0.249397 113.324001 -32.979023 -87.930712 InfiniiMax III+ Series Probes User’s Guide...
  • Page 132 31728703098.427670 -24.576379 -122.274522 -0.482050 -105.277061 -0.496607 -105.184253 -22.985629 83.341478 32468422318.080524 -18.473439 97.257414 -0.522336 109.131590 -0.552294 109.178004 -17.832689 -62.528240 33225387263.857967 -35.956091 36.668777 -0.453368 -40.549604 -0.433040 -40.351388 -38.607656 -59.673550 34000000000.000000 -18.584633 -83.525655 -0.518071 166.056015 -0.538472 166.289380 -18.908405 -121.618048 InfiniiMax III+ Series Probes User’s Guide...

  • Page 133: Dc Input Resistance Performance Verification

    N OT E both of them. If it passes for one of them, then it will pass for all of them. • Keysight N5443A Performance Verification Fixture. No substitute. • BNC(m) to SMA(m) Adapter. Pomona 4288 or equivalent. • Banana Plug to BNC(f). Pomona 1269 or equivalent.
  • Page 134 Figure 99 (through the vent window of the probe amplifier). Figure 99 Measuring the Single-Ended Input Resistance the Solder-In Probe Head InfiniiMax III+ Series Probes User’s Guide...

  • Page 135: Performance Test Record

    ≥ 13 GHz DC Input Resistance Performance Test N2836A 98 to 102 kW (differential mode) 49 to 51 kW (single-ended mode) N5441A 98 to 102 kW (differential mode) 49 to 51 kW (single-ended mode) InfiniiMax III+ Series Probes User’s Guide...
  • Page 136 Performance Verification for N2830A-Series Probes InfiniiMax III+ Series Probes User’s Guide...

  • Page 137: Performance Verification For N7000-Series Probes

    This chapter describes the equipment and procedures needed to verify the performance of N7000/1/2/3A InfiniiMax III+ probes. The performance measured in this chapter is of the probe by itself. Keysight high performance real-time scopes (and sampling scopes under certain conditions) will apply probe correction that will further enhance the performance of the probes.

  • Page 138: Bandwidth Performance Verification

    2.4 mm or 1.85 mm VNA calibration load with required return loss could be used. • Keysight N5477A AutoProbe II to 3.5 mm (f) Adapter. The N5477A comes with a required NMD 3.5 mm (m) to 3.5 mm (f) adapter (5062-1247).
  • Page 139 Prepare the N2836A solder-in probe head for connection to the PV fixture as shown in Figure 100. Shape the leads as shown with the resistors angled until they almost touch. Figure 100 N2836A ZIF Probe Head InfiniiMax III+ Series Probes User’s Guide...
  • Page 140 Connect the APC 3.5 (f-f) adapter, provided with the N5443A PV fixture, to the N5443A. as shown in Figure 101. Use a small bench vise to steady the N5443A PV fixture on the test surface. Figure 101 Test Setup for Measuring V of Probe InfiniiMax III+ Series Probes User’s Guide...
  • Page 141 N2830A-series probes. You can also copy the data from the Adobe AIR version of Keysight’s Probe Resource Center N OT E (PRC). Copying this data from the PRC is the simplest most reliable method to get the data. To download the PRC, visit http://www.Keysight.com/find/PRC.
  • Page 142 143. If it looks noticeably different, the probe tip wires may not be making contact under the pincher. Under “Trace/Math/Memory” select “Data->Memory”. This will save the de-embedded input voltage trace into the memory. InfiniiMax III+ Series Probes User’s Guide...
  • Page 143 Chapter 7 for the performance verification of N2830A-series probes. You can also copy the data from the Adobe AIR version of Keysight’s Probe Resource Center N OT E (PRC). Copying this data from the PRC is the simplest most reliable method to get the data. To download the PRC, visit http://www.Keysight.com/find/PRC.
  • Page 144 Performance Verification for N7000-Series Probes Figure 104 Test Setup to Measure V of Probe InfiniiMax III+ Series Probes User’s Guide...
  • Page 145 50 MHz point (which is one division below center screen since screen is set to 3 dB/div). Verify that the BW is 20 GHz for the N2836A solder-in probe head and ≥ N7003A 20 GHz probe amp combination. Figure 105 De-Embedded V Trace InfiniiMax III+ Series Probes User’s Guide...
  • Page 146 Performance Verification for N7000-Series Probes Figure 106 De-Embedded V Response of the Probe InfiniiMax III+ Series Probes User’s Guide...

  • Page 147: Dc Input Resistance Performance Verification

    N OT E both of them. If it passes for one of them, then it will pass for all of them. • Keysight N5443A Performance Verification Fixture. No substitute. • BNC(m) to SMA(m) Adapter. Pomona 4288 or equivalent. • Banana Plug to BNC(f). Pomona 1269 or equivalent.
  • Page 148 Figure 108 (through the vent window of the probe amplifier). Figure 108 Measuring the Single-Ended Input Resistance the Solder-In Probe Head InfiniiMax III+ Series Probes User’s Guide...

  • Page 149: Performance Test Record

    ≥ 20 GHz DC Input Resistance Performance Test N2836A 98 to 102 kW (differential mode) 49 to 51 kW (single-ended mode) N5441A 98 to 102 kW (differential mode) 49 to 51 kW (single-ended mode) InfiniiMax III+ Series Probes User’s Guide...
  • Page 150 Performance Verification for N7000-Series Probes InfiniiMax III+ Series Probes User’s Guide...

  • Page 151: Spice Models

    Keysight InfiniiMax III+ Series Probes User’s Guide 9 SPICE Models N2848A QuickTip Head with N2849A QuickTip Tip N5439A ZIF Probe Head with N5440A ZIF Tip N5439A ZIF Probe Head with N2838A ZIF Tip N2836A 26 GHz Solder-In Probe Heads N5441A 16 GHz Solder-In Probe Head...

  • Page 152: N2848A Quicktip Head With N2849A Quicktip Tip

    4 0 1 2 1 e3 14 0 3 0 2 e4 15 0 14 0 -1 g1 1 2 6 0 1e6 g2 1 0 17 0 1e6 g3 2 0 17 0 1e6 .ends InfiniiMax III+ Series Probes User’s Guide...

  • Page 153: N5439A Zif Probe Head With N5440A Zif Tip

    5 1 50k cm1 2 7 24f lm1 7 8 1.5n rm1 8 5 180 cm2 2 9 100n rm2 9 5 500 rm3 2 5 50k rom 5 0 180 lom 5 0 30u .ends InfiniiMax III+ Series Probes User’s Guide...

  • Page 154: N5439A Zif Probe Head With N2838A Zif Tip

    Rmbn 14 6 500 Rdcp 1 6 50k Rdcn 2 6 50k Rom 6 0 110 Lom 6 0 30u Lg2p 9 10 1.21n Lg2n 11 12 1.21n Lm2 7 8 15.3n Lm3 3 15 5.76n .ends InfiniiMax III+ Series Probes User’s Guide...

  • Page 155: N2836A 26 Ghz Solder-In Probe Heads

    Rmbn 14 6 500 Rdcp 1 6 50k Rdcn 2 6 50k Rom 6 0 110 Lom 6 0 30u Lg2p 9 10 1.12n Lg2n 11 12 1.12n Lm2 7 8 11.2n Lm3 3 15 5.90n .ends InfiniiMax III+ Series Probes User’s Guide...

  • Page 156: N5441A 16 Ghz Solder-In Probe Head

    5 1 50k cm1 2 7 55f lm1 7 8 2.5n rm1 8 5 65 cm2 2 9 100n rm2 9 5 500 rm3 2 5 50k rom 5 0 130 lom 5 0 30u .ends InfiniiMax III+ Series Probes User’s Guide...

  • Page 157: N5445A Browser Probe Head

    5 1 50k cm1 2 7 30f lm1 7 8 2.3n rm1 8 5 250 cm2 2 9 100n rm2 9 5 500 rm3 2 5 50k rom 5 0 40 lom 5 0 30u .ends InfiniiMax III+ Series Probes User’s Guide...
  • Page 158 5 1 50k cm1 2 7 30f lm1 7 8 2.3n rm1 8 5 300 cm2 2 9 100n rm2 9 5 500 rm3 2 5 50k rom 5 0 40 lom 5 0 30u .ends InfiniiMax III+ Series Probes User’s Guide...

  • Page 159: N5444A Sma Probe Head

    36 0 37 0 z0=50.6940 td=4.5p t37 37 0 38 0 z0=50.1733 td=4.5p t38 38 0 39 0 z0=50.2609 td=4.5p t39 39 0 40 0 z0=50.1355 td=4.5p t40 40 0 41 0 z0=51.2333 td=4.5p rterm 41 0 50.3 .ends InfiniiMax III+ Series Probes User’s Guide...
  • Page 160 SPICE Models InfiniiMax III+ Series Probes User’s Guide...
  • Page 161 Conductive table-mat, humidity, N5441A connecting to DUT, replacing head wires, connecting, probe, solder-in probe head, connections N5441A dimensions, InfiniiMode, 22, circuit, N5443A PV fixture, 32, inspecting, InfiniiMode, N5444A SMA probe head, isolation, contacting, Keysight Technologies, InfiniiMax III+ Series Probes User’s Guide...
  • Page 162 11, offset, service, ungrounded DUTs, Tack-putty, Probe Amplifier dialog box, temperature, probe calibration, temperature chamber, Probe Comp terminals, tip span gauge, Probe Configuration Setup dialog box, probe head dimensions, probe leads, ungrounded DUTs, InfiniiMax III+ Series Probes User’s Guide...

This manual is also suitable for:

N2830aN2831aN7001aN7003aN7002aN7000a ... Show all

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