Condition: For parts or not working

The Keysight Agilent N2803A is a 30 GHz InfiniiMax III Series probe amplifier. This unit is listed for parts or repair purposes as it is out of specification and is not verified as performing to its warranted parameters.

What is typically included:
• N2803A probe amplifier unit

The Keysight (formerly Agilent) N2803A is the top-of-range model in the InfiniiMax III Series probe amplifier family, delivering 30 GHz of bandwidth. The InfiniiMax III probing system provides extremely low signal loading and high bandwidth to achieve a new level of signal fidelity and accuracy when used with compatible Infiniium oscilloscopes. A proprietary 200 GHz fT indium phosphide (InP) IC process with backside ground vias and novel thick film technology underpins the performance of the InfiniiMax III probe system. The N2803A supports both differential and single-ended measurement modes and is compatible with the full range of InfiniiMax III probe heads, including ZIF, browser (N5445A), and solder-in types. It is not compatible with InfiniiMax I or II probe heads.

Key Specifications:
Model: N2803A
Product Family: InfiniiMax III Series Probe Amplifier
Bandwidth: 30 GHz
Rise Time (10–90%): 14.3 ps (amplifier only)
DC Attenuation Ratio: 6:1 (3:1 with 200 Ω ZIF tip)
Input Voltage Range: 1.6 Vpp (0.8 Vpp with 200 Ω ZIF tip)
Input Common Mode Range: ±12 V at DC to 250 Hz; ±2.5 V at >250 Hz
Offset Range: ±16 V (single-ended probing)
DC Input Resistance (Rdiff): 100 kΩ ±2%
DC Input Resistance (Rse): 50 kΩ ±2%
Input Resistance >10 kHz (Rdiff): 1 kΩ
Input Resistance >10 kHz (Rse): 500 Ω
Input Capacitance: Cdiff = 32 fF, Cse = 48 fF (with ZIF probe head)
Warranted System Bandwidth (with N5445A browser head): 28 GHz
Warranted System Bandwidth (with N5439A/N5440A ZIF head): 26 GHz
Probe Interface: AutoProbe I
Compatible Oscilloscopes: Infiniium 90000X/Q/Z Series (28 GHz to 63 GHz models); Infiniium 86100C DCA-J (with N5477A adapter)
Measurement Modes: Differential (D), Single-ended (SE)
IC Technology: 200 GHz fT InP (indium phosphide) with backside ground vias
Probe Head Compatibility: InfiniiMax III probe heads only (not compatible with InfiniiMax I or II heads)

Typical Applications:
- High-speed serial data analysis (PCI Express, USB 3.x, DDR, 10/25/100 Gbps Ethernet)
- Differential signal integrity measurements
- High-density IC and PCB probing
- Eye diagram and jitter analysis on multi-gigabit interfaces

Keysight InfiniiMax III/III+ Probing System Data Sheet (includes N2803A specifications): Download PDF

Keysight Infiniium Oscilloscope Probes and Accessories Data Sheet (includes N2803A): Download PDF

Agilent InfiniiMax III Probing System Data Sheet (legacy, includes N2803A): Download PDF

InfiniiMax III N2800A Series Probe Handling Guide — User Manual (Keysight): Download PDF

Shipping & Returns Policy

Shipping Policy

• Processing Time: Orders are typically processed and dispatched within 1 business day.
• Shipping Methods: We offer Expedited Shipping to all destinations using UPS/DHL/Fedex/Royal Mail and other reputable carriers.
• Shipping Times: Mainland UK: 1-2 Business Days / Mainland Europe and USA: 2-3 Business Days / Rest of the World 5-7 Business Days.
• Shipping Costs: These are calculated at checkout based on the shipping method, destination and package dimensions.
• CUSTOMS AND TAXES: It is YOUR responsibility to liaise with customs in your country and ensure your package is cleared and any taxes are paid.
• Shipping Destinations: We ship worldwide.
• Tracking: Once your order is shipped, we will provide you with a tracking number via email.
• Insurance: All shipments are insured. In case of damage, please contact us via email within 48 hours of receiving the product with photographic evidence, please also ensure a report is logged with the delivery driver.

Returns Policy

• Return Period: In the event of an item being received which is 'not as specified', you can return your purchase within 14 days of delivery.
• Condition of Items: Items must be returned unused and in their original packaging.
• Return Method: All returns must be notified in writing to hello@ttinstruments.com, the email should accompany the order number, date and reason for return and must be within 14 days of delivery.
• Restocking Fees: A restocking fee of up-to 20% is applicable for items returned for any reason other than 'not as specified'.
• Refund Method: Refunds are processed to the original method of payment within 5 business days of receiving the return.
• Exchanges: We do not offer exchanges. It will either be a replacement or a refund.
• Return Shipping Costs: Return shipping costs will be borne by the customer unless the item is 'not as specified', in this case we will arrange for the return by way of a prepaid shipping label.