The Keysight DSO80404B Infiniium is a 4-channel real-time oscilloscope delivering 4 GHz bandwidth with upgrade capability to 13 GHz. Sample rates reach 40 GSa/s across configurable memory depths up to 2 Mpts, enabling high-resolution capture of complex signals in telecommunications, semiconductor testing, and R&D environments. The instrument achieves noise performance at 188 µV RMS on the 5 mV/div setting, with trigger jitter below 500 fs RMS. An 8.4-inch XGA color touchscreen display and acquisition rates to 4800 waveforms/sec support rapid signal analysis and troubleshooting workflows.
Technical Specifications
• Bandwidth: 4 GHz (upgradeable to 13 GHz)
• Analog Channels: 4
• Sample Rate: Up to 40 GSa/s
• Memory Depth: 512 kpts standard per channel; expandable to 2 Mpts (2 channels at 40 GSa/s) or 1 Mpts (4 channels) with Option 001
• Vertical Sensitivity: 5 mV/div minimum
• Noise Floor: 188 µV RMS @ 5 mV/div
• Trigger Jitter: < 500 fs RMS
• Acquisition Rate: Up to 4800 waveforms/sec
• Display: 8.4-inch XGA color TFT-LCD with 256 intensity levels
– Key Features
• Input impedance: 50 kΩ differential, 0.27 pF differential
• Interchangeable probe compatibility across browsing, solder-in, socketed, and SMA configurations
• Jitter analysis via EZJIT and EZJIT Plus software options
• High-speed serial data analysis with clock recovery and 8B/10B decoding
• Low-speed serial protocol support: I2C/SPI and CAN
• Compliance testing software for Ethernet, DVI, and HDMI electrical validation
• DDR2 and LPDDR2 compliance test capability with Option 032
• Vector signal analysis integration via 89601A software
– Typical Applications
Telecommunications signal characterization, high-speed digital design validation, jitter and noise margin analysis, serial protocol debugging, and standards compliance verification.
– Compatibility & Integration
InfiniiMax II probing system (1.5 GHz to 12 GHz bandwidth) with multiple probe head types. Connectivity via LAN, GPIB, and USB 2.0. MATLAB user-defined function support.


















