Keysight
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The Keysight N 2803 A Probe Amplifier is a probe amplifier in the InfiniiMax III probing system. The Keysight N 2803 A Probe Amplifier has a 30 GHz bandwidth. The Keysight N 2803 A Probe Amplifier is designed for use with Keysight InfiniiMax III and III+ probe heads.[1][2][3]
The InfiniiMax III series includes four probe amplifier models, and the N2803A is the 30 GHz model. Each InfiniiMax III probe amplifier is pre-loaded with its specific measured S-parameters. The InfiniiMax III probing system supports differential and single-ended signal measurements.[4][5]
The Keysight N 2803 A is compatible with several probe heads in the InfiniiMax III family. Compatible probe heads named for the N 2803 A include the N5445A differential browser head, N2848A QuickTip Infiniimode head, N5439A ZIF head, N2836A solder-in head, N5441A solder-in head, and N5444A 2.92 mm / 3.5 mm / SMA head.[2][4]
Probe amplifiers are used in electrical test and characterization rather than in patterning, deposition, etch, or metrology process modules. Probe amplifiers of this class typically appear in engineering labs, failure analysis environments, and validation benches where signals must be observed directly on packaged parts, interconnects, or development hardware.
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The Keysight N 2803 A belongs to the InfiniiMax III series probing system.[2][1][3][4]
Compatible probe heads include the N5445A differential browser head, N2848A Quicktip Infiniimode head, N5439A ZIF head, N2836A solder-in head, N5441A solder-in head, and N5444A 2.92 mm / 3.5 mm / SMA head.[2][4]
The InfiniiMax III series includes four probe amplifier models, and the N2803A is the 30 GHz probe amplifier in that group.[4]
The following facts about the N 2803 A Probe Amplifier are absent from this record as of this revision. First-hand knowledge or a citation closes a gap; every submission is reviewed before publication.
No publicly documented production dates or lifecycle milestones (introduction, end of production, EOL) for the N 2803 A Probe Amplifier are on record.
Answerable by: OEM historical records or a trade-press announcement
No publicly documented variants, configuration options, or revision breakpoints of the N 2803 A Probe Amplifier are on record.
Answerable by: an OEM product catalog or an engineer who ordered or specified the tool
The control-system platform and OS era of the N 2803 A Probe Amplifier are not on record.
Answerable by: an engineer who operated it or OEM installation records
No publicly documented failure modes or field errata for the N 2803 A Probe Amplifier are on record.
Answerable by: a field service engineer, process engineer, or maintenance technician
The process node or technology generation of the N 2803 A Probe Amplifier is not on record.
Answerable by: an OEM datasheet or a fab qualification report
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Last updated Oct 17, 2026.
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