Agilent / Keysight DSO90804A Infiniium High Performance Oscilloscope: 8 GHz

The Keysight DSO90804A Infiniium is an 8 GHz real-time oscilloscope built for signal integrity analysis, high-speed digital design, and research environments where precise waveform capture and deep memory are essential. This four-channel instrument delivers 40 GSa/s sampling across all channels with up to 1 Gpts memory depth, capture complex signals over extended time windows - up to 25 ms at maximum sample rate. With a noise floor of 1.15 mVrms at 50 mV/div and ±2% DC gain accuracy, the DSO90804A provides the measurement fidelity demanded by compliance verification, design debug, and advanced signal analysis workflows.

Technical Specifications

• Bandwidth: 8 GHz (upgradeable to 13 GHz)


• Channels: 4 analog


• Sample Rate: 40 GSa/s (4 channels)


• Memory Depth: Standard 20 Mpts; maximum 1 Gpts (4 channels)


• Vertical Resolution: 8 bits (upgradeable to ≥12 bits with averaging)


• Noise Floor: 1.15 mVrms @ 50 mV/div


• DC Gain Accuracy: ±2% of full scale


• Input Voltage Range: ±5 V


• Offset Range: ±5 V


• Channel Isolation: 60 dB (DC–3 GHz), 40 dB (3–8 GHz), 35 dB (8 GHz–BW)


• Time Span Capture: Up to 25 ms @ 40 GSa/s with 1 Gpts memory

Key Features

• 12.1-inch XGA (1024 × 768) color touch-screen display


• USB 2.0 host and device ports for connectivity and control


• 10/100/1000 BaseT LAN with web-enabled interface


• GPIB support for automated test environments


• Removable solid-state drive storage option


• Universal AC input (100–240 VAC auto-ranging)

Typical Applications

• Signal integrity and compliance testing


• High-speed serial data analysis


• Jitter characterization and power measurement


• Custom measurement automation via user-defined applications

Compatibility & Integration

• Bandwidth upgradeable to 13 GHz


• InfiniiMax II probing system compatible


• XAUI specification software (N5431A)


• InfiniiScan triggering and EZJIT jitter analysis tools


• High-speed serial data and power measurement applications