The Keysight UXR0404AP is a 40 GHz real-time oscilloscope built for signal integrity measurement and high-speed digital characterization. This 4-channel instrument delivers 256 GSa/s sample rate across all channels with up to 2 Gpts memory per channel, enabling extended capture windows for complex signal analysis. The 10-bit ADC achieves noise performance of 2.2 mVrms at 50 mV/div and maximum bandwidth, with effective resolution reaching 16 bits through averaging. Rise and fall times measure 11 ps to 6.3 ps (10-90%), supporting analysis of ultrafast signal transitions.
Technical Specifications
Bandwidth & Channels
• 40 GHz native bandwidth, upgradeable to 110 GHz
• 4 full-bandwidth channels
• 256 GSa/s sample rate all channels
• Up to 2 Gpts memory per channel
Signal Acquisition
• 10-bit ADC with ≥14 bits effective resolution via averaging
• Up to 16 bits high-resolution mode
• Noise floor: 2.2 mVrms (50 mV/div @ max bandwidth)
• Minimum rise/fall time: 11 ps to 6.3 ps (10-90%)
Connectors & Interface
• 1 mm connector inputs
• AutoProbe III interface
– Key Features
• High-speed serial data analysis (SDA) and clock recovery included
• Advanced triggering: edge, pulse width, pattern, and serial data modes
• Real-time eye diagram and jitter analysis
• FFT, math functions, and automated measurements
• Serial data decoding capability
• User-defined functions support
• Memory, bandwidth, and DDC upgrades available
– Typical Applications
• Signal integrity analysis for high-speed digital designs
• Advanced research requiring extended waveform capture
• Serial data characterization and protocol debugging
• Jitter and timing margin assessment
– Compatibility & Integration
Standard accessories include keyboard, optical mouse, 3.5 mm and 2.92 mm to 2.40 mm coaxial adapters (40 GHz rated), 1.85 mm ruggedized adapter, torque wrench (8 lb-in, 5/16 in), heel ground strap, and ESD mat cord. Physical footprint: 330 mm H × 533 mm W × 584 mm D; 42.05 kg. Requires 200–240 Vac power. Product status: discontinued but supported.
