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Highlights

Bandwidth

  • 4 GHz (-3 dB)
  • Tr = 108.5 psec (10-90%)

Input range

  • DC attenuation ratio: 10:1 or 5:1
  • Input voltage range: 2.5 Vpp or ± 1.25 V at 5:1 attenuation, 5 Vpp or ± 2.5 V at 10:1 attenuation
  • Input common mode range: ± 7 VDC to 100 Hz, ± 1.25 V at >100 Hz at 5:1 attenuation, ± 2.5 V > 100 Hz at 10:1 attenuation
  • Offset range: ± 16 V when probing a single-ended signal

Input impedance

  • DC input resistance : R diff = 100 kΩ ± 2%, R se = 50 kΩ ± 2%
  • Input resistance at > 10 kHz: R diff = 1 kΩ, R se = 500 Ω
  • Input capacitance : C diff = 32 fF, C se = 44 fF (with ZIF probe head)

Connectivity

  • N2848A InfiniiMax III QuickTip probe head and N5445A InfiniiMax III browser
  • N5439A InfiniiMax III ZIF probe head
  • N5444A InfiniiMax III 2.92 mm/3.5 mm/SMA probe head
  • N5441A InfiniiMax III solder-in probe head

The N2830A Series InfiniiMax III+ probing system is the next generation of InfiniiMax probing, greatly expanding the measurement capability and usability of a probe capable of measuring all components of a differential signal. The built-in InfiniiMode technology allows customers to switch differential, single-ended, and common mode without adjusting probe tip connections.

The N2830A Series probe’s InfiniiMode provides the following modes of operation:

  • A – B (differential)
  • A – ground (signal singled A)
  • B – ground (signal singled B)
  • (A + B)/2 – ground (common mode)

The InfiniiMax III+ works with the full array of InfiniiMax III probe heads and supports the full bandwidth of the InfiniiMax III+.
 

Extend The Capabilities

Accessories
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Data Sheets 2024.12.02

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Probe Soldering Guidelines for Keysight InfiniiMax Probes

Probe Soldering Guidelines for Keysight InfiniiMax Probes

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This document contains information about the InfiniiMax III and III+ Probing System.

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Quick Start Guides 2014.03.31

N2830A Series InfiniiMax III+ Probes Configuration Card

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This card shows the recommended probe head configurations for the InfiniiMax III+ probing system. It also includes additional information and tips.

2014.03.31

Data Sheets 2024.06.25

Infiniium Oscilloscope Probes and Accessories

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To get the most out of your Keysight Infiniium oscilloscope, you need the right probes and accessories for your particular applications. Whether you need the high bandwidth and low loading of an active probe, an easy way to connect to surface mount ICs, or a passive probe to measure high voltages, there’s a wide selection of high-quality probes and accessories for your Infiniium oscilloscope. The Infiniium probes and accessories data sheet provides you the overview of all probes and accessories recommended for Infiniium oscilloscopes.

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Application Notes 2018.06.20

Bandwidth Boosting Techniques for the Infiniimax Probe Amp and Probe Head

Bandwidth Boosting Techniques for the Infiniimax Probe Amp and Probe Head

Keysight InfiniiMax differential probes are DSP corrected to have a flat magnitude and phase response to provide the highest possible accuracy. The bandwidth chosen to correct to is typically around 3dB non-corrected bandwidth. Usually, extending the bandwidth much beyond that point will increase the noise floor, and if pushed even further, can cause unrealistic noise artifacts. This application note presents the techniques used to extend the bandwidth performance of the InfiniiMax 1169A/B and the N5381A/B solder-in head using the PrecisionProbe application on Infiniium realtime oscilloscope.

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N2830A-Series Differential InfiniiMax III + Probes Handling Guide

This guide describes proper handling techniques for the N2830A-Series probes.

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Oscilloscope Probes Selection Guide

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Keysight offers a broad range of voltage, current, and optical probing solutions for InfiniiVision and Infiniium Series oscilloscopes.
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