The Agilent Infiniium 90000 X-Series is a family of high-performance real-time oscilloscopes spanning 13 GHz to 33 GHz of true analog bandwidth across six bandwidth tiers (13, 16, 20, 25, 28, and 33 GHz). The series is offered in three model variants per bandwidth: DSA (Digital Signal Analyzer, with EZJIT, EZJIT+, EZJIT Complete, Serial Data Analysis, and 50 Mpts memory standard), DSO (Digital Storage Oscilloscope), and MSO (Mixed Signal Oscilloscope with 16 added digital channels). All models share an 80 GSa/s two-channel sample rate, 40 GSa/s four-channel sample rate, and expandable acquisition memory up to 2 Gpts per channel.

The datasheet identifies the 90000 X-Series as a tool for high-speed serial bus design work including FibreChannel, SAS 12G, and 10 Gb Ethernet KR, along with spectral analysis of wide-bandwidth RF signals, transient phenomena investigation, jitter analysis, and compliance testing across more than 20 industry standards. The MSO variant is specifically targeted at DDR2, DDR3, and DDR4 memory technology debug, with 20 GSa/s on eight channels supporting read/write separation across DDR4 speeds. The platform also serves protocol decode applications for buses including PCI Express, USB 2.0/3.0, MIPI D-PHY, I2C, SPI, JTAG, CAN, FlexRay, and 10Gbase-KR.

ValueTronics stocks and ships high-end Agilent and Keysight test equipment including the Infiniium 90000 X-Series from our 20,000 sq ft secure warehouse at 1675 Cambridge Drive, Elgin, Illinois. Every {{CONDITION}} 90000 X-Series oscilloscope shipped from our facility is verified by our in-house technical staff against the datasheet's published specifications before it leaves the building, with the resulting condition report attached to the order. This direct accountability — instruments physically inspected in Elgin rather than drop-shipped from a distant pass-through broker — is what separates a ValueTronics transaction from a marketplace listing.

Brand Heritage

Agilent Technologies was spun off from Hewlett-Packard in 1999 as the test and measurement business, and in 2014 the electronic measurement portion of Agilent was further separated to form Keysight Technologies. Instruments originally released under the Agilent brand — including the 90000 X-Series oscilloscope family — are now supported through Keysight, and the model numbers continue under the Keysight brand.

Compare Other Models in This Series

The Infiniium 90000 X-Series is structured as a single platform offered across six analog bandwidth tiers — 13 GHz, 16 GHz, 20 GHz, 25 GHz, 28 GHz, and 33 GHz — with three variant types at each bandwidth: DSA (Digital Signal Analyzer with EZJIT, EZJIT+, EZJIT Complete, and Serial Data Analysis software standard plus 50 Mpts memory), DSO (Digital Storage Oscilloscope without the standard analysis bundle), and MSO (Mixed Signal Oscilloscope adding 16 digital channels with 50 ps timing resolution). All variants in the family share the same 80 GSa/s two-channel sample rate, 40 GSa/s four-channel sample rate, 50 Ω input architecture, and the same chassis, display, and connectivity feature set.

Bandwidth is the primary differentiator between models in the series, and the datasheet documents bandwidth upgrade paths between adjacent tiers (13→16 GHz, 16→20 GHz, 20→25 GHz, 25→28 GHz, and 28→33 GHz) via dedicated upgrade kits (N5471M, N5471G, N5471H, N5471I, N5471J). The 13 GHz and 16 GHz models deliver their rated bandwidth on four channels; the 20 GHz and higher models deliver full rated bandwidth on two channels and 16 GHz on four channels.

Each model listed in the comparison table below has its own product page on the ValueTronics catalog. Each pre-owned unit is priced based on its specific bandwidth tier, variant type (DSA, DSO, or MSO), and configuration options at the time of listing. The condition report and accessory inventory are attached to each individual listing.

The performance differences across the family follow a structured progression. Rise time (10-90%) improves from 32 ps at the 13 GHz model down to 12.5 ps at the 33 GHz model, and 20-80% rise time tightens from 23 ps to 9 ps across the same range. Noise floor at 50 mV/div ranges from 1.10 mVrms on the 13 GHz model to 2.10 mVrms on the 33 GHz model — the higher bandwidth captures more noise within its passband, which is reflected in the specifications. Per-channel sample rate is uniform across the family: 80 GSa/s on two channels and 40 GSa/s on four channels.

The DSA variant at each bandwidth tier includes EZJIT, EZJIT+, EZJIT Complete, Serial Data Analysis, and 50 Mpts of memory as standard, where the DSO at the same bandwidth ships without that analysis bundle. The MSO variant at each tier adds 16 digital channels with 50 ps timing resolution and includes DDR2/3/4 and LPDDR2/3 protocol triggering and search as standard — features the datasheet states are only available on the MSO models. Refer to the comparison table for the specific bandwidth, sample rate, memory, and variant-type values that distinguish each model.

Additional differences in specifications beyond the few shown above are not listed here — see each model's full specifications below.

Accessories Supplied

• Power cord
• Keyboard
• Mouse
• Stylus
• Calibration cable
• Wrench
• (5) coax adapters rated to 25 GHz (1250-3758)

Product Core & Specifications

About this used unit

• Warranty included
• Functional verification included
• Standard Calibration Upgrade Options: No Calibration Required, NIST Traceable, Z540.1 or ISO 17025 with Data, Z540.3 Guardbanding with Data.
• Note that unnecessary accessories may not be included (contact Test Architect to confirm).

Please review the Manufacturer's Data Sheet to verify published specifications. Feedback on this webpage is always welcome — please reach out to your Test Architect at any time for questions or concerns. Thank you, we truly appreciate you being our customer.