The Keysight MSOS404A is a 4-channel mixed-signal oscilloscope built for signal integrity analysis and complex transient capture. With 4 GHz analog bandwidth, 16 digital logic channels, and sampling rates to 20 GSa/s across two channels, the instrument delivers the vertical resolution and acquisition depth required for modern embedded and RF debug work.
Technical Specifications
Analog Channels & Acquisition
• 4 analog channels with 4 GHz bandwidth (upgradable to 6 GHz and 8 GHz in 2-channel mode)
• Maximum sampling rate: 20 GSa/s (2 channels) / 10 GSa/s (4 channels)
• Memory: 100 Mpts per channel standard, expandable to 800 Mpts
• 10-bit ADC with upgrade path to 16-bit high-resolution mode
• System ENOB: 8.1 bits typical at full bandwidth
• Intrinsic jitter: 100 fs typical
Digital Channels
• 16 digital logic channels with flying lead set probe
Display & Interface
• 15-inch XGA capacitive touch screen with multi-touch gesture support (zoom, pan)
Computing Platform
• Windows 10 operating system
• Intel i5 quad-core processor at 3 GHz
• 8 GB RAM
• 256 GB removeable SSD for fast boot and reliable operation
• Open Windows environment supports third-party application installation
• LXI Class C compliant
– Key Features
• Four times the vertical resolution of 8-bit oscilloscopes at 10-bit native resolution
• 16-bit resolution mode minimizes quantization noise for low-level signal observation
• Memory expandability decouples sample rate from capture duration
• 8 GHz BNC calibration cable included for system verification
– Typical Applications
• Mixed-signal debug of digital and analog subsystems
• Low-jitter timing and clock analysis
• High-resolution acquisition of weak or noise-embedded signals
• Multi-protocol transient capture with extended trace lengths
– Compatibility & Integration
Includes four 500 MHz N2873A passive probes, 16-channel logic probe with MSO cable, calibration fixture, Keysight I/O libraries suite, keyboard, mouse, and probe accessory pouch.
