Accessories

• Test and validate high-speed technologies such as DDR5 / MIPI with the 25 GHz probe amplifier (AP2).
• Experience the highest input impedance in midband frequencies for low-energy probing.
  
• Boost test margins with the lowest signal degradation.
• Probe small devices with the super-flexible micro probe head or choose from the widest variety of compatible probe heads for your unique application.
• Measure differential, single-ended, and common mode signals with a single probe tip.
  
• Use with Infiniium UXR-, 90000 X-, Q-, V-, and Z-Series oscilloscopes.

Keysight’s MX0025A InfiniiMax Ultra Series probe amplifier improves usability because you can measure differential, single-ended, and common mode signals with a single probe tip.

When you use a probe to connect your signal to your oscilloscope, it becomes part of the circuit affecting your test. Your probe may be hiding signal details, loading down your signal, or distorting it. InfiniiMax Ultra Series probes have the lowest loading for minimal impact to your circuit. Boost your test margins and gain measurement confidence with their unprecedented accuracy. Ensure your entire measurement system is helping you see the truest representation of your signal.

These probes have the lowest noise and capacitive loading and the lowest loading across more frequencies due to their RC high impedance profile. The InfiniiMax Ultra Series supports InfiniiMode and has a user-defined AC calibration mode, a wider input voltage range, more accuracy with unique S-parameter characterization, lower capacitive loading, a wider input voltage range, micro / socketed probe heads for smaller density probing, and more bandwidths. The InfiniiMax Ultra Series has an RC input impedance architecture with the lowest loading and least signal distortion across the widest frequency range.

InfiniiMax Ultra probes have three attenuation ranges — 1:1, 4:1, and 8:1 — giving you superior noise performance and large voltage ranges, all while maintaining maximum bandwidth. The input range automatically configures depending on the size of the input signal and vertical scale of your oscilloscope.

Choose from the three flexible input dynamic ranges from 600 mVpp at 1:1, 2.5 Vpp at 4:1, and 5 Vpp at 8:1. Clearly see and know when your design is satisfactory, keep up with standards, easily probe small devices, and reduce test complexity with the InfiniiMax Ultra Series probes.

• DC to 6.0 GHz frequency range
  
• Type-N male to type-N male connectors
• 58 cm (23 in) length (nom)
• Insertion loss at 0.73 dB maximum
• Return loss at 10.50 dB minimum

The Keysight 11500B cable assembly is 58 cm (23 in) type-N male to type-N male with a frequency range of DC to 6.0 GHz

• DC to 6.0 GHz frequency range
• Type-N male to type-N male connectors
• 58 cm (23 in) length (nom)

• DC to 6.0 GHz frequency range
• Type-N male to type-N male connectors
• 58 cm (23 in) length (nom)
• Insertion loss at 0.73 dB maximum
• Return loss at 10.50 dB minimum

The Keysight 11500B cable assembly is 58 cm (23 in) type-N male to type-N male with a frequency range of DC to 6.0 GHz

• DC to 6.0 GHz frequency range
• Type-N male to type-N male connectors
• 58 cm (23 in) length (nom)

• Frequency range: dc to 26.5 GHz
• Maximum SWR: 1.29
• Insertion loss: 7.5 dB
• Maximum amplitude tracking: 0.25 dB at 18 GHz
• Maximum phase tracking: 2 deg typical

The Keysight 11636B is a dc to 26.5 GHz power divider for direct power dividing applications. The excellent impedance match of all three ports improves fault location measurements by reducing re-reflections. The Keysight 11636B power divider/combiner is recommended when making wideband comparison measurements with the Keysight 8757 scalar vector network analyzer.

Superior RF Performance

• Maximum SWR: 1.35
• Insertion loss: 6.0 dB typical
• Maximum amplitude tracking: 0.5 dB
• Maximum phase tracking: 2 deg typical

The Keysight 11636A is a dc to 18 GHz power divider for direct power dividing applications. The excellent impedance match of all three ports improves fault location measurements by reducing re-reflections. The Keysight 11636A power divider/combiner is recommended when making wideband comparison measurements with a Keysight 8757 scalar vector network analyzer.

• Frequency range: dc to 50 GHz
• Equivalent output SWR: 1.65
• Maximum input power: 0.5 W
• Insertion loss: 8.5 dB
• Tracking between two ports: 0.40dB

The Keysight 11667C power splitter is recommended when making wideband ratio measurements using a Keysight 8757 scalar network analyzer. This two-resistor type power splitter provides excellent output SWR at the auxiliary arm when used for source leveling or ratio measurement applications. The tracking between output arms over a frequency range from dc to 50 GHz allows wideband measurements to be made with a minimum of uncertainty.

Superior RF Performance

• Equivalent output SWR: 1.22
• Maximum input power: 0.5 W
• Insertion loss: 7 dB
• Tracking between two ports: 0.25 dB to 18 GHz, 0.40 to 26.5 GHz

The Keysight 11667B power splitter is recommended when making wideband ratio measurements using a Keysight 8757 scalar network analyzer. This two-resistor type power splitter provides excellent output SWR at the auxiliary arm when used for source leveling or ratio measurement applications. The tracking between output arms over a frequency range from dc to 26.5 GHz allows wideband measurements to be made with a minimum of uncertainty.

The 42090A is an open termination and is primarily used for performance tests of Keysight's 4-terminal pair LCR meters and impedance analyzers. Refer to the instrument's operation/service manual for the method of using this standard.

The 42091A is a short termination and is primarily used for performance tests of Keysight's 4-terminal pair LCR meters and impedance analyzers. Refer to the instrument's operation/service manual for the method of using this standard.

The Keysight 346C noise source is the ideal companion to Keysight's noise figure solutions. Since it is broadband (10 MHz to 26.5 GHz), it eliminates the necessity for several sources at different frequency bands. The low SWR of the noise source reduces a major source of measurement uncertainty; reflections of test signals. Option K01 is a coaxial noise source and features coverage from 1 to 50 GHz with a 2.4 mm coaxial connector.

• Frequency range: 10 MHz to 26.5 GHz
• VSWR: < 1.35:1
• Connectors: BNC (f) input bias / 3.5 mm (m)
• Low SWR for reducing noise figure measurement uncertainty
• Individually calibrated ENR values at specific frequencies

The Keysight 346B noise source is the ideal companion to Keysight's noise figure solutions. Since it is broadband (10 MHz to 18 GHz), it eliminates the necessity for several sources at different frequency bands. The low SWR of the noise source reduces a major source of measurement uncertainty, which are reflections of the test signals. Add special option H01 for high ENR (21 dB typical) to measure high noise figure devices, or option H42 for measuring Direct Broadcast Satellite (DBS) low noise block converters.

• Frequency range: 10 MHz to 18 GHz    
  
• VSWR: < 1.3:1
• Connectors: BNC (f) input bias / 3.5 mm (m)
• Low SWR for reducing noise figure measurement uncertainty
• Individually calibrated ENR values at specific frequencies

The Keysight 346A noise source is the ideal companion to Keysight's noise figure solutions. Since it is broadband (10 MHz to 18 GHz), it eliminates the necessity for several sources at different frequency bands. The low SWR of the noise source minimizes reflection of test signals, reducing measurement uncertainty. The very small change in reflection coefficient (<0.01) from ON to OFF is designed especially for accurate characterization of input-impedance-sensitive devices (like GaAsFETs and many UHF amplifiers).

• Frequency range: 10 MHz to 18 GHz
• VSWR: < 1.3:1
• Connectors: BNC (f) input bias / 3.5 mm (m)
• Low SWR for reducing noise figure measurement uncertainty
• Individually calibrated ENR values at specific frequencies