Keysight Technologies Inc. N2803A Probe Amplifier, InfiniiMax III 30 GHz

N2803A - Keysight Technologies Inc. Probe Amplifier, InfiniiMax III 30 GHz

Warranty: 1 Year
Shipping: FOB Destination
Ships in: 5 Weeks
Country of Origin: Singapore
SIN: 334515
Part No:
GSA Schedule: GS-35F-0311R Exp.:02 Feb. 2025

U.S. Government, Military
and Contractors only
Price: Do you qualify for GSA Schedule?


Keysight Technologies Inc. Probe Amplifier, InfiniiMax III 30 GHz

The InfiniiMax III probing system provides the highest bandwidth and incredibly low loading to allow for a completely new level of signal fidelity and accuracy. Four different InfiniiMax III probe amplifiers ranging from 16 GHz to 30 GHz are available for matching your probing solution to your performance and budget requirements. A proprietary 200 GHz fT InP (indium phosphide) IC process with backside ground vias and novel thick film technology is utilized for the InfiniiMax III probe system to accommodate your highest performance needs and is unmatched by any product in the market.

Key Features

  • Full 30 GHz to the probe tip (with the N5445A browser)
  • Industry¿s lowest probe and scope system noise
  • Industry¿s highest fidelity and accuracy due to bandwidth and extremely low loading
  • Probe amplifiers loaded with measured s-parameters for more accurate response correction
  • Probe bandwidth upgradable
  • Variety of probe heads for different use models with maximum usability


  • 30 GHz
  • Tr = 14.3 psec


  • DC attenuation ratio : 6:1 (3:1 with 200 ZIF tip)
  • Input voltage range : 1.6 Vpp (0.8 Vpp with 200 ZIF tip)
  • Input common mode range : ±12 V at DC to 250 Hz, ±2.5 V at >250 Hz (±6 V at DC to 250 Hz, ±1.25 V at >250 Hz with 200 ZIF tip)
  • Offset range : ±16 V when probing a single-ended signal

Input Impedance:

  • DC input resistance : R diff = 100 k ±2%, R se = 50 k ±2%
  • Input resistance @ >10 kHz : R diff = 1 k, R se = 500
  • Input capacitance : C diff = 32 fF, C se = 48 fF (with ZIF probe head)


  • 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

Additional Details

  • Available NEW for official U.S. Government & Authorized Contractor purchase only
  • This is available to Authorized User Groups and Agencies for delivery to CONUS, Alaska, Hawaii and Puerto Rico. Commercial and non-US entities are not authorized to purchase from GSA MSA contracts and may not reference GSA prices.
Type: GSA Schedule
Calibration: New
DUNS: #08-643-8152
Tax ID: 94-3310442
CAGE code: 1RPN6
DODAAC: Q90079
Small business credit applies for this item.

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U.S. Government, Military and Contractors only
Toll free: 888-665-2765
Outside US: +1 650-624-0525
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