The Agilent/Keysight DSO90254A is a 2.5 GHz Infiniium oscilloscope engineered for high-speed signal acquisition and detailed jitter characterization. This four-channel instrument delivers 20 GSa/s simultaneous sampling across all channels with standard 10 Mpts memory per channel, upgradeable to 1 Gpts. Built for telecommunications, semiconductor device testing, and standards compliance work, the DSO90254A combines low noise performance—as low as 0.64 mVrms at 50 mV/div—with bandwidth expandable to 13 GHz and equivalent-time sampling to 500 ns/div.
Technical Specifications
Acquisition Performance
• Bandwidth: 2.5 GHz (upgradeable to 13 GHz)
• Real-time sample rate: 20 GSa/s on all 4 channels simultaneously
• Memory depth: 10 Mpts standard per channel; upgradeable to 1 Gpts per channel
• Waveform capture rate: Up to 400,000 waveforms per second in segment memory mode
• Vertical resolution: 8 bits native; ≥12 bits with averaging
• Noise floor: 0.64 mVrms at 50 mV/div
Vertical System
• 4 analog input channels
• Input impedance: 50 ohm (±3%)
• Sensitivity: 1 mV/div to 1 V/div
• DC gain accuracy: ±2% full scale at full resolution (±2.5% at 5 mV/div)
• Maximum input: ±5 V
• Input coupling: DC
• Dynamic range: ±4 div from center screen
Horizontal System
• Timebase range: 5 ps/div to 20 s/div real-time
• Equivalent-time sampling: Up to 500 ns/div
• Delay range: -200 s to 200 s (real-time); -25 µs to 200 s (equivalent-time)
• Zoom timebase: 1 ps/div to current main scale setting
• Channel deskew: ±25 µs range with 100 fs resolution
• Time scale accuracy: ±(0.4 + 0.5 × Yrs Since Cal) ppm pk
Jitter Analysis & Triggering
• Real-time Tj and Rj characterization to 8.5 Gb/s
• PRBS^23 support for transmitter and receiver measurement
• EZJIT Plus software: cycle-cycle, N-cycle, period, time-interval error, setup/hold time, histograms, trending, and jitter spectrum analysis
• Advanced triggering options
Display & Interfaces
• 12.1-inch color XGA TFT-LCD with touch screen
• USB 2.0 port
• Hard disk drive
– Key Features
• Four simultaneous analog channels at 20 GSa/s maintains signal fidelity across multi-channel measurements
• Bandwidth upgrade path to 13 GHz extends instrument life for future applications
• low noise floor enables precision jitter and compliance testing
• Deep memory options support extended acquisition windows and waveform segmentation
– Typical Applications
• High-speed serial data compliance testing
• Jitter and eye diagram analysis on multi-gigabit signals
• Telecommunications equipment characterization
• Semiconductor device debug and characterization
– Compatibility & Integration
Standard accessories include USB optical mouse, keyboard, and stylus. Hard disk and USB 2.0 connectivity support waveform storage and external data transfer.
