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Using InfiniiMax III Series Probes

InfiniiMax III Series Probes User’s Guide

Cleaning the probe

If the probe requires cleaning, disconnect it from the oscilloscope and clean it with a soft

cloth dampened with a mild soap and water solution. Make sure the probe is completely

dry before reconnecting it to the oscilloscope.

Содержание InfiniiMax III N2800A Series

Страница 1: ...Keysight N2800A Series Differential InfiniiMax III Probes User s Guide...

Страница 2: ...which is embodied in its End User License Agreement EULA a copy of which can be found at http www keysight com find sweula The license set forth in the EULA represents the exclu sive authority by whi...

Страница 3: ...InfiniiMax III Solder in Probe Head Discontinued 45 N5444A InfiniiMax III 2 92 mm 3 5 mm SMA Probe Head 48 N2835A InfiniiMax III Differential Connectivity Kit and Accessories 51 Strain Relieving the P...

Страница 4: ...amic High Sensitivity ZIF Tip Head with N2803A 118 N5441A 16 GHz Solder In Head with N2803A 121 N5444A 30 GHz SMA 2 92 mm Head with N2803A 124 N5445A 30 GHz Browser Head 1 mm span with N2803A 127 N544...

Страница 5: ...or today s high density ICs and circuit boards Four different InfiniiMax III probe amplifiers ranging from 16 GHz to 30 GHz are available for matching your probing solution to your performance and bud...

Страница 6: ...ies the oscilloscope downloads these parameters and automatically corrects the response of the unique probe system Figure 1 InfiniiMax III Probe Amplifier 4V Input Connector Use this connector to conn...

Страница 7: ...ter performing a calibration as described in Chapter 5 Calibration Deskew Procedure the DC Cal indicator turns green Channel Identification Rings Use the channel identification rings to match each pro...

Страница 8: ...N5446A 001 16 GHz to 20 GHz bandwidth upgrade N5446A 002 20 GHz to 25 GHz bandwidth upgrade N5446A 003 25 GHz to 30 GHz bandwidth upgrade N5446A 004 16 GHz to 25 GHz bandwidth upgrade N5446A 005 16 G...

Страница 9: ...Infiniium oscilloscope Is your oscilloscope software up to date Keysight periodically releases software updates to support your probe fix known defects and incorporate product enhancements To download...

Страница 10: ...ng InfiniiMax III Series Probes InfiniiMax III and III Probing System Family Diagram The following diagram shows the InfiniiMax III and InfiniiMax III probes and probe heads The diagram is not drawn t...

Страница 11: ...t can be used Other probes may not meet the bandwidth specification Use the N5443A Performance Verification PV accessory fixture to properly position the probe for PV testing CAUTION None of the N2800...

Страница 12: ...probe power output on the DCA X 86100D wideband oscilloscope if the module being used has this receptacle or to the 1143A power module Finally connect the other side of the adapter to the InfiniiMax...

Страница 13: ...to a Keysight UXR Series 40GHz or higher Infiniium oscilloscope that has the AutoProbe III interface To know more about this adapter visit http www keysight com find N2852A and then download the adapt...

Страница 14: ...nd imperceptibly damage or destroy high performance probes resulting in costly repairs Always wear a wrist strap when handling probe components CAUTION Probes are sensitive devices and should be treat...

Страница 15: ...nd Socket The static safe work station shown in Figure 5 uses two types of ESD protection Conductive table mat and wrist strap combination Conductive floor mat and heel strap combination Both types wh...

Страница 16: ...would be a battery powered DUT 2 Attach the probe head to the DUT Figure 7 Probe Head Attached to DUT 3 Connect the probe amplifier to the oscilloscope while hand tightening the dark gray clutch ring...

Страница 17: ...other CAUTION When connecting a probe head to a probe amplifier push straight in When disconnecting a probe head from an amplifier pull the probe head connectors straight out of the sockets Never bend...

Страница 18: ...2 mm 3 5 mm SMA head The only exception is when the DUT is not grounded to the oscilloscope via the AC mains ground In this case connect the DUT ground to the oscilloscope ground before moving the pro...

Страница 19: ...blies are NOT intended for measurements on circuits rated for CAT II CAT III or CAT IV WARNING Indoor Use Only Do not operate in wet damp environments Keep product surfaces dry and clean WARNING Never...

Страница 20: ...II Series Probes CAUTION The probe cable is a sensitive part of the probe and therefore you should be careful not to damage it through excessive bending or pulling Avoid any mechanical shocks to this...

Страница 21: ...bes User s Guide 21 Cleaning the probe If the probe requires cleaning disconnect it from the oscilloscope and clean it with a soft cloth dampened with a mild soap and water solution Make sure the prob...

Страница 22: ...22 InfiniiMax III Series Probes User s Guide 1 Using InfiniiMax III Series Probes...

Страница 23: ...109A and N2836A InfiniiMax III Solder in Probe Heads 39 N5441A InfiniiMax III Solder in Probe Head Discontinued 45 N5444A InfiniiMax III 2 92 mm 3 5 mm SMA Probe Head 48 N2835A InfiniiMax III Differen...

Страница 24: ...ifferential Browser Head Using the LED Headlights A pair of LED headlights are integrated into the tip of the browser to illuminate the probing area for better visibility The headlights are controlled...

Страница 25: ...e span setting on the oscilloscope s Probe Calibration dialog box To determine the tip span do the following steps 1 Adjust the browser s tip span for your measurement 2 Locate the tip span gauge on t...

Страница 26: ...signed holder Figure 14 below shows the dimensions of these mounting holes Figure 14 Dimensions of Mounting Holes Probe Along the Browser s Axis To prevent tip damage probe along the browser s axis as...

Страница 27: ...and Ground Blade CAUTION Do not apply too much force when browsing The weight of the probe in your hand should be sufficient The axial travel of the probe is about 15 mils 0 4 mm CAUTION The browser s...

Страница 28: ...1 Lock the vertical compliance of the probe positioner 2 Clamp the browser into the positioner aligning the browser s slot with the positioner s gripping pad 3 While holding the browser loosen the mai...

Страница 29: ...chanically connected to the QuickTip you can effortlessly connect and disconnect to each QuickTip For best performance position the QuickTip vertically on the DUT The N2849A QuickTip has two signal le...

Страница 30: ...of the QuickTip will be reduced and you will need to stabilize the probe head Figure 20 Probing with the N2848A Probe Head and N2849A QuickTip CAUTION Do not replace or repair the N2849A QuickTip s r...

Страница 31: ...he resistor and the end of the wire Bend the ground leads at about the same distance CAUTION Always mechanically strain relieve the QuickTip head before using to protect both your probe accessories an...

Страница 32: ...connections in the head become dirty clean the connections using the following steps 1 Use compressed air or a cloth to remove any loose dirt 2 Gently rub a small piece of tack putty supplied with th...

Страница 33: ...m damage refer to Strain Relieving the Probe Heads on page 53 Table 4 Available ZIF Tips ZIF Tip Description Variable Tip Spacing Qty N2838A 25 GHz 450W PC board tip provides robust design with high b...

Страница 34: ...ed to position the resistors different than shown in this figure that is resistor bodies close together or spread apart use Keysight s N2807A and N2808A PrecisionProbe products to perform an AC calibr...

Страница 35: ...hile holding the plastic form form the ZIF tip wires to match the DUT s pitch and angle 4 Flux the ZIF tip wires and DUT leads 5 Position the ZIF tip with the gold traces facing up as shown in Figure...

Страница 36: ...Form the coaxial cables to bring the probe head near the tip Press the lever down on the ZIF probe head see Figure 27 and slide the probe head onto the tip Pressing on this lever removes the clamping...

Страница 37: ...igure 27 Probe Head with Location of the Lever Figure 28 Probe Head Connected to a Soldered ZIF Tip CAUTION Always use the lever when inserting or removing ZIF tips NOTE For more repeatable results or...

Страница 38: ...ular to Device 3 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 anothe...

Страница 39: ...range InfiniiMode capable InfiniiMode allows you to make differential common mode and single ended measurements without having to re solder the tip leads To use the InfiniiMode capability of these pr...

Страница 40: ...in this figure that is resistor bodies close together or spread way apart use Keysight s N2807A and N2808A Precision Probe products to perform an AC calibration of the probe The AC calibration will ca...

Страница 41: ...r DUT complete the following steps This procedure does not show soldering the ground leads but the same techniques as described in this procedure are used 1 Apply flux to your target leads as shown in...

Страница 42: ...fit your DUT s geometry 4 Flux the DUT leads and your probe head wires Figure 35 Applying Flux to Leads and Wires 5 Position the probe head wires on the DUT leads and quickly re flow the solder as sh...

Страница 43: ...e cautious not to subject these probe amplifiers to extreme temperatures Using the N5450B extension cable with the MX0109A probe head physically separates the amplifier from the probe head and therefo...

Страница 44: ...acket Do not rest the extension cables on any metal objects or objects with sharp edges CAUTION Do not kink the cables The cables are designed to be flexible but are not designed to be bent sharply NO...

Страница 45: ...53 Soldering the Probe Head to the DUT To solder the probe head to your DUT complete the following steps The procedure is very similar to that for the ZIF probe tips used with the N5439A probe head 1...

Страница 46: ...ds 5 Use tweezers to form the probe head wires to fit your DUT s geometry 6 Flux the DUT leads and your probe head wires Figure 40 Applying Flux to Leads and Wires 7 Position the probe head wires on t...

Страница 47: ...InfiniiMax III Probe Heads 2 InfiniiMax III Series Probes User s Guide 47 Figure 41 Positioning Wires...

Страница 48: ...ination voltage of the N5444A probe head using either the oscilloscope software or the supplied N5444 61601 cable connected to your own DC power supply You may want to use an external power supply if...

Страница 49: ...age on www keysight com Probe Offset Calibration with the N5444A To achieve more accurate probe offset calibration with the N5444A an SMA shorting adapter Keysight part number 1250 3999 is required Th...

Страница 50: ...The latest Infiniium firmware includes instructions on the Probe Calibration dialog box to remind you to install the adapter If the Infiniium oscilloscope s firmware is older than version 5 50 33 you...

Страница 51: ...be Heads Included in the N2835A Differential Connectivity Kit not to scale Table 5 Supplied Accessories Sheet 1 of 2 Description Qty Supplied Part Number N2836A InfiniiMax III 26 GHz Differential Sold...

Страница 52: ...52 InfiniiMax III Series Probes User s Guide 2 InfiniiMax III Probe Heads Ground Blades 4 N5445 68700 Table 5 Supplied Accessories Sheet 2 of 2 Description Qty Supplied Part Number...

Страница 53: ...f tack putty for securing both probe heads and amplifiers Wrap a small amount of tack putty around your probe head cables taking care to not pinch them The mass can then be secured to a rigid body nea...

Страница 54: ...e the stiffer N5439A near the SMP connectors and form the cable to the optimal location Other strain relief options like tape or hook and loop work fine as well but keep the following guidelines in mi...

Страница 55: ...ceable 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 MX0109A probe heads N2836A probe heads N5441A probe h...

Страница 56: ...tip PC board 0 381 mm 0 015 in diameter RMA flux standard tin lead solder wire Fine stainless steel tweezers Rosin flux pencil RMA type Kester 186 or equivalent Diagonal cutters Magnifier or low power...

Страница 57: ...come free of the probe head tip Figure 50 Removing the Resistor NOTE Clean the soldering iron tip of any excess solder before using NOTE The solder joint has very low thermal mass so the joint will qu...

Страница 58: ...board Figure 51 Trim Guage 6 Holding the resistor lead or wire in one hand and soldering iron in the other position the end of the resistor lead after the 90 degree bend over the solder filled hole F...

Страница 59: ...kel wires 01169 81301 0 005 inch tin plated nickel wires 01169 21306 Table 8 Recommended Equipment Equipment Vise or clamp for holding tip Metcal STTC 022 600 C or STTC 122 700 C tip soldering iron or...

Страница 60: ...e Probe Head 2 As shown in Figure 54 remove the old wires with tweezers while re flowing the solder from the underside of the probe Figure 54 Removing the Old Wire 3 If necessary add a small amount of...

Страница 61: ...w the solder from the underside and insert a new piece of wire It is best to shape the wire into an L before attempting to insert Figure 56 Adding a New Wire Figure 57 New Wires Properly Attached 5 Tr...

Страница 62: ...Use the included trim gauge to cut the wire lengths Doing so ensures the best performance from your probe head Figure 59 Trim Gauge Placed on Wires Figure 60 Removing Excess Wire 7 Check the DC resis...

Страница 63: ...of the 90000 X series oscilloscope The only exception are the N5441A and MX0109A solder in probe heads The temperature range for these probe heads is from 55 C to 150 C for up to 250 test cycles for...

Страница 64: ...arranted Specifications Table 9 Warranted Specifications Probe Head Probe Amplifier Bandwidth DC Input Resistance N5439A ZIF probe head with N5440A ceramic 450 W ZIF tip N2803A 30 GHz probe amp 26 GHz...

Страница 65: ...ound Rdiff 1 kW Rcm 250 W 50 W to 0 901 Vterm Input Voltage Range Differential or Single Ended 1 6 Vpp 0 8 Vp mains isolated HD2 3 38 dbc 2 5 Vpp 1 25 Vp mains isolated HD2 3 34 dbc 0 8 Vpp 0 4 Vp mai...

Страница 66: ...ins isolated 8 Vpeak without violating maximum input power Table 10 InfiniiMax III Probe Amplifier Characteristics Sheet 2 of 2 Feature InfiniiMax III Probe Amplifier With 450 W Probe Heads N5439A N54...

Страница 67: ...Amplifier Probe Head Input Capacitance Mode Bandwidth 3 dB 10 90 Transition Time 20 80 Transition Time Cdiff Cse N5439A ZIF N5440A 450W ZIF tip 32 fF 44 fF Differential 28 GHz 15 5 ps 11 0 ps N2838A 4...

Страница 68: ...erformance Specifications Characteristics InfiniiMax III Probe Heads Dimensions All dimensions included in this section are in millimeters inches MX0109A Extreme Temperature Solder in Head Dimensions...

Страница 69: ...Performance Specifications Characteristics 4 InfiniiMax III Series Probes User s Guide 69 N2838A InfiniiMax III PCB ZIF Tip with N5439A ZIF Head Dimensions...

Страница 70: ...70 InfiniiMax III Series Probes User s Guide 4 Performance Specifications Characteristics N2848A InfiniiMax III QuickTIp Probe Head with N2849A QuickTip Dimensions...

Страница 71: ...ance Specifications Characteristics 4 InfiniiMax III Series Probes User s Guide 71 N5440A N5447A InfiniiMax III Ceramic ZIF Tip with N5439A ZIF Head Dimensions N5441A InfiniiMax III Solder in Head Dim...

Страница 72: ...e Specifications Characteristics Environmental Specifications Environmental Condition Specification Altitude 2000m Temperature Operating 5 to 40 oC Non Operating 40 to 70 o C Humidity 80 up to 31 o C...

Страница 73: ...Performance Specifications Characteristics 4 InfiniiMax III Series Probes User s Guide 73 Safety Specifications Compliant to IEC 61010 031 2015 EN 61010 031 2015...

Страница 74: ...74 InfiniiMax III Series Probes User s Guide 4 Performance Specifications Characteristics...

Страница 75: ...ll be using the N5443A Calibration Deskew Fixture This fixture enables you to not only calibrate deskew your InfiniiMax III probe but it also ensures you properly position the probe amplifier during t...

Страница 76: ...o the fixture as shown below 2 Hold the N5443A upright and connect the fixture to the Cal Out on the oscilloscope Turn the nut on the Cal Out counter clockwise to tighten 3 While holding the fixture u...

Страница 77: ...up and down in the holder to adjust the probe head position 6 Before connecting to the N5443A fixture form the N5439A probe head ZIF tip wires as shown below if using the ZIF tip for the calibration...

Страница 78: ...Deskew Procedure Form the wires as shown below if using the N5441A solder in probe head 7 Connect your probe head to the amplifier 8 Position the probe head wires if you are using the ZIF or Solder in...

Страница 79: ...dialog box on the oscilloscope 10 In the Probe Setup dialog box click on the Calibrate Probe button This will open the Probe Calibration dialog box 11 In the Probe Calibration dialog box select the pr...

Страница 80: ...t the probe head to the calibration deskew fixture 13 On the fixture the center gold trace is signal and the large plates on either side are both ground as shown below NOTE The fixture has three sprin...

Страница 81: ...ou use the N2787A 3D Probe Positioner to hold the browser in place as shown below The browser uses spring loaded tips so you do not need much force to get a solid contact You can check that the tips a...

Страница 82: ...nation of probe amplifier probe head and oscilloscope channel input has been calibrated 18 Once the DC vertical calibration has successfully completed select the Calibrated Skew radio button from the...

Страница 83: ...o the techniques and procedures described in this chapter to accurately measure the performance It is also important to note that the performance measured here is of the probe by itself Keysight high...

Страница 84: ...d to convert to 2 92 mm male connectors Needs to be capable of using a Touchstone file to de embed at a port Needs to have bias port for port 1 of the VNA i e has internal bias T s and a BNC port that...

Страница 85: ...to 5 divisions Procedure 1 Calibrate the PNA to the two male 2 92 mm connectors connectors can be seen in Figure 62 using the N4692A 00F ECal module or equivalent 2 92 mm cal kit 2 Prepare the N5439A...

Страница 86: ...no probe offset is applied b The 5062_1247 adapter should be attached to the N5477A and properly torqued 5 Connect the probe amp pod end to the N5477A and torque connector 6 Connect the probe to the...

Страница 87: ...be tip Figure 63 Close up of tip wires positioned under pinchers 7 Install the proper file to de embed the 1250 1749 adapter and the output side of the N5443A i e the path from the male 2 92 mm connec...

Страница 88: ...This new setup is shown in Figure 65 Torque all connections 11 Install the proper file to de embed the 5062_1247 adapter and N5477A adapter from port 1 of the VNA a Create a Touchstone file for the 50...

Страница 89: ...le b Under Scale menu adjust the reference level until the 50 MHz point left side of the screen is at center screen Reference level should be approximately 15 3 dB but can vary a few tenths of a dB ei...

Страница 90: ...herefore show the voltage transfer function of the probe or vout vin b Again adjust the Reference Level in the scale menu so the 50MHz point is at center screen The display should look like Figure 67...

Страница 91: ...the same time 2 Probe the halfway point between the where the pinchers are and where the microstrip transitions into the rectangular coax line 3 Set the span of the browser to the minimum possible as...

Страница 92: ...92 InfiniiMax III Series Probes User s Guide 6 Performance Verification Figure 68 Probe Tips on Microstrip...

Страница 93: ...Performance Verification 6 InfiniiMax III Series Probes User s Guide 93 Figure 69 N2787A 3D Probe Positioner used to measure the N5445A browser with the N2803A amp...

Страница 94: ...97549961 291281 56 051127 18 007724 0 023168 8 147556 0 023782 8 137620 53 867407 79 587653 99824229 515220 56 847547 19 421327 0 023744 8 335819 0 025002 8 318424 53 140655 71 244030 102151519 758706...

Страница 95: ...807567 49 683609 21 223063 489607070 061218 45 485801 0 581757 0 083491 40 697038 0 079818 40 709941 50 060529 34 194193 501021711 204246 46 603526 10 039365 0 083755 41 665129 0 077315 41 682717 48...

Страница 96: ...164 663900 0 216900 120 465559 0 214475 120 405217 31 889321 37 253951 2954875471 515481 31 194821 157 495083 0 222818 114 879439 0 217917 114 825549 31 703250 42 176641 3023765087 683534 31 613614 15...

Страница 97: ...5709 154 592735 0 660264 153 014482 0 658133 153 003053 15 173200 80 159018 15892285496 473612 15 566862 168 702105 0 644811 123 213682 0 635579 123 149684 15 854211 100 792741 16262796355 032291 17 1...

Страница 98: ...377316 97549961 291281 43 286543 18 529278 0 030393 19 386071 0 038533 19 423615 44 479324 46 062923 99824229 515220 43 379343 18 545057 0 031118 19 827438 0 039011 19 871267 44 685054 44 717887 1021...

Страница 99: ...79 148628 0 068623 96 242744 0 068688 96 208235 44 530542 92 358060 501021711 204246 49 429340 82 184197 0 069634 98 479232 0 070689 98 445619 44 777030 97 275465 512702471 936616 49 746024 87 736429...

Страница 100: ...6 154 164327 39 096794 99 094444 2954875471 515481 37 787643 4 617903 0 169225 140 976795 0 165129 141 007201 38 625927 64 598987 3023765087 683534 36 875824 8 969005 0 171385 127 493385 0 169053 127...

Страница 101: ...00395 87 230844 0 357092 161 686627 0 354720 161 661329 41 363027 107 616521 15892285496 473612 30 792606 28 600758 0 365286 127 262506 0 357217 127 348334 30 829188 78 555766 16262796355 032291 27 16...

Страница 102: ...tion 2 wire resistance accuracy Power Supply for Probe DSO DSA 90000 X series oscilloscope or 1134A power supply with N5477A Autoprobe adapter see the procedure Bandwidth Performance Verification on p...

Страница 103: ...obe head to the probe amp and insert it into the PV fixture as shown Figure 70 5 Depress the pincher fingers on the PV fixture so they open and carefully insert the tip wires under the pinchers Releas...

Страница 104: ...oes not impact this DC measurement 2 Plug the probe amplifier into the browser 3 Clamp the browser with the N2787A probe positioner 4 Hold the browser with one hand and loosen the arm locking knob on...

Страница 105: ...al Number Work Order Number Recommended next test date Date Probe Head only required to test one Test Limits Result Pass Fail Bandwidth Performance Test N5439A with N5440A 26 GHz N5445A 28 GHz DC Inpu...

Страница 106: ...106 InfiniiMax III Series Probes User s Guide 6 Performance Verification...

Страница 107: ...on in the response of the probe amplifier For the InfiniiMax III probes the s parameters of each probe amplifier are measured at manufacture and stored in non volatile memory in the probe amplifier th...

Страница 108: ...ff significantly within the 40GHz measurement range Time Response to a ps Step at Probe Tip This is the time response of the probe when measuring a step with the indicated 10 90 rise time present at t...

Страница 109: ...Performance Plots 7 InfiniiMax III Series Probes User s Guide 109 MX0109A and N2836A 26 GHz Solder In Probe Heads with N2803A...

Страница 110: ...110 InfiniiMax III Series Probes User s Guide 7 Performance Plots...

Страница 111: ...Performance Plots 7 InfiniiMax III Series Probes User s Guide 111...

Страница 112: ...112 InfiniiMax III Series Probes User s Guide 7 Performance Plots N2838A N5439A 25 GHz PCB ZIF Tip Head with N2803A...

Страница 113: ...Performance Plots 7 InfiniiMax III Series Probes User s Guide 113...

Страница 114: ...114 InfiniiMax III Series Probes User s Guide 7 Performance Plots...

Страница 115: ...Performance Plots 7 InfiniiMax III Series Probes User s Guide 115 N5440A N5439A 28 GHz Ceramic ZIF Tip Head with N2803A...

Страница 116: ...116 InfiniiMax III Series Probes User s Guide 7 Performance Plots...

Страница 117: ...Performance Plots 7 InfiniiMax III Series Probes User s Guide 117...

Страница 118: ...118 InfiniiMax III Series Probes User s Guide 7 Performance Plots N5447A N5439A 28 GHz Ceramic High Sensitivity ZIF Tip Head with N2803A...

Страница 119: ...Performance Plots 7 InfiniiMax III Series Probes User s Guide 119...

Страница 120: ...120 InfiniiMax III Series Probes User s Guide 7 Performance Plots...

Страница 121: ...Performance Plots 7 InfiniiMax III Series Probes User s Guide 121 N5441A 16 GHz Solder In Head with N2803A...

Страница 122: ...122 InfiniiMax III Series Probes User s Guide 7 Performance Plots...

Страница 123: ...Performance Plots 7 InfiniiMax III Series Probes User s Guide 123...

Страница 124: ...124 InfiniiMax III Series Probes User s Guide 7 Performance Plots N5444A 30 GHz SMA 2 92 mm Head with N2803A...

Страница 125: ...Performance Plots 7 InfiniiMax III Series Probes User s Guide 125 t...

Страница 126: ...126 InfiniiMax III Series Probes User s Guide 7 Performance Plots...

Страница 127: ...Performance Plots 7 InfiniiMax III Series Probes User s Guide 127 N5445A 30 GHz Browser Head 1 mm span with N2803A...

Страница 128: ...128 InfiniiMax III Series Probes User s Guide 7 Performance Plots...

Страница 129: ...Performance Plots 7 InfiniiMax III Series Probes User s Guide 129...

Страница 130: ...s N5445A 30 GHz Browser Head 2 mm span with N2803A NOTE For browser spans of 2 and 3mm the biggest effect is in the frequency and time responses The input loading is nearly the same as for the 1mm spa...

Страница 131: ...Performance Plots 7 InfiniiMax III Series Probes User s Guide 131...

Страница 132: ...132 InfiniiMax III Series Probes User s Guide 7 Performance Plots...

Страница 133: ...3 N5445A 30 GHz Browser Head 3 mm span with N2803A NOTE For browser spans of 2 and 3mm the biggest effect is in the frequency and time responses The input loading is nearly the same as for the 1mm spa...

Страница 134: ...134 InfiniiMax III Series Probes User s Guide 7 Performance Plots...

Страница 135: ...x III Schematic 145 The SPICE models in this chapter are for the input impedances of the various Infiniimax III probes heads The input impedance is only a function of the probe head as the amplifier i...

Страница 136: ...s for the various probe heads Figure 73 on page 137 shows the SPICE circuit used for these probe heads N5440A 28 GHz ceramic ZIF Tips with N5439A ZIF Probe Head N5447A 28 GHz ceramic high sensitivity...

Страница 137: ...SPICE Models 8 InfiniiMax III Series Probes User s Guide 137 Figure 73 SPICE circuit for N5440A N5447A N5441A N5445A and N5444A probe heads...

Страница 138: ...3 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 N5447A Ceramic High Sensitivity ZIF Tip N5439A ZIF Probe Head For matching between the...

Страница 139: ...500 rp3 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 N5445A Browser Probe Head 1 mm span For matching between the modeled and measured...

Страница 140: ...100n rp2 6 1 500 rp3 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 N5445A Browser Probe Head 3 mm span For matching between the modeled...

Страница 141: ...4 5p t12 12 0 13 0 z0 49 3079 td 4 5p t13 13 0 14 0 z0 48 3903 td 4 5p t14 14 0 15 0 z0 50 1144 td 4 5p t15 15 0 16 0 z0 51 9126 td 4 5p t16 16 0 17 0 z0 51 1671 td 4 5p t17 17 0 18 0 z0 48 7858 td 4...

Страница 142: ...ws the matching between the measured input impedance and these modeled input impedances for the various probe heads The following diagram shows the SPICE circuit used for these probe heads N2838A 25 G...

Страница 143: ...Cg1p 1 4 26 1f Cg1n 5 6 26 1f Cg2p 1 10 128 4f Cg2n 12 6 128 4f Cm2 2 8 3 04f Cm3 2 3 7 05f Rg1p 4 6 67 8 Rg1n 2 5 67 8 Rg2p 9 6 126 2 Rg2n 2 11 126 2 Rm2 1 7 225 9 Rm3 1 15 71 5 Rmbp 1 13 500 Rmbn 14...

Страница 144: ...robe Heads with N2803A on page 109 subckt N2836A_SldrIn 1 2 Cblkp 6 13 100n Cblkn 2 14 100n Cg1p 1 4 20 7f Cg1n 5 6 20 7f Cg2p 1 10 152 2f Cg2n 12 6 152 2f Cm2 2 8 4 12f Cm3 2 3 6 46f Rg1p 4 6 52 4 Rg...

Страница 145: ...PICE Models 8 InfiniiMax III Series Probes User s Guide 145 Simplified InfiniiMax III Schematic Figure 75 InfiniiMax III Simplified Schematic NOTE Do not use this simplified schematic as a SPICE model...

Страница 146: ...146 InfiniiMax III Series Probes User s Guide 8 SPICE Models...

Страница 147: ...spice model 142 N N2787A 3D probe positioner 28 N2800A 16 GHz probe amplifier 6 N2801A 20 GHz probe amplifier 6 N2802A 25 GHz probe amplifier 6 N2803A 30 GHz probe amplifier 6 N2835A 51 N2836 68701 r...

Страница 148: ...148 InfiniiMax III Series Probes User s Guide Index...

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Содержание InfiniiMax III N2800A Series

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Содержание InfiniiMax III N2800A Series

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