Agilent / Keysight DSOX91304A Infiniium High-Performance Oscilloscope: 13GHz

The Keysight DSOX91304A Infiniium is a 13 GHz analog oscilloscope engineered for high-speed digital design, RF, and microwave signal analysis. This four-channel instrument delivers 80 GSa/s sampling (two channels) and captures transient events with up to 2 Gpts memory depth. Its sub-100 fs jitter measurement floor and advanced analysis toolset - including EZJIT+ for difficult jitter separation, hardware-accelerated de-embedding, and serial data compliance testing - enable precise characterization of high-speed serial buses, RF transients, and complex signal integrity challenges.

The scope integrates optional 16 fully-aligned digital channels and supports bandwidth upgrade to 33 GHz. Combined with InfiniiMax II probing systems rated to 13 GHz and InfiniiSim waveform transformation capability, the DSOX91304A addresses USB 3.0, GDDR5, PCI Express Gen 2, and other serial standards validation.

Technical Specifications

• Analog Bandwidth: 13 GHz (upgradeable to 33 GHz)


• Analog Channels: 4


• Digital Channels: 16 (MSOX91304A model, fully integrated and time-aligned)


• Sample Rate: 80 GSa/s (2 channels) / 40 GSa/s (4 channels)


• Memory Depth: 20 Mpts standard, upgradeable to 1 Gpts or 2 Gpts per channel


• Noise Floor: 1.25 mVrms at 13 GHz (50 mV/div); 1.73 mVrms (50 mV/div); 2.80 mV (100 mV/div)


• Jitter Measurement Floor: <100 fs


• SFDR: High

Key Features

• EZJIT+ jitter analysis for ABUJ separation and PRBS^23 capability


• Real-time Tj and Rj characterization to 8.5 Gb/s


• Hardware-accelerated de-embedding (probe, fixture, channel compensation)


• N5465A InfiniiSim waveform transformation and channel simulation


• N5430A user-defined function software (MATLAB integration)


• Serial Data Analysis (SDA) and compliance testing (USB 3.0, GDDR5, DisplayPort, HDMI, SAS-2, DDR3/4, PCI Express Gen 2)


• InfiniiMax I/II probe compatibility (1–13 GHz)


• Accessory support to 28 GHz

Typical Applications

• High-speed digital design validation


• RF and microwave signal measurement


• X-band signal analysis


• Serial bus compliance verification


• Jitter and timing analysis


• Transient and spectral characterization

Compatibility & Integration Works with InfiniiMax I/II probing systems, PrecisionProbe for channel characterization, and BenchVue Basic control software.