The Rigol DHO4404 is a 4-channel digital oscilloscope delivering 400 MHz bandwidth and up to 4 GSa/s real-time sampling for advanced signal analysis and circuit debugging. Built on the UltraVision III platform with a dedicated ASIC chip, it achieves true 12-bit vertical resolution—expandable to 16-bit in high-resolution mode—providing 4096 quantization levels and exceptional fidelity for low-level signal measurements. An ultra-low noise floor of 18 µVrms typical and vertical sensitivity from 100 µV/div to 10 V/div enable precise capture of complex waveforms in semiconductor testing, GaN characterization, and other demanding applications.
The 10.1-inch capacitive touch display with 1280 × 800 pixel resolution delivers intuitive navigation via Flex Knobs and gesture controls. Waveform capture reaches 50,000 wfms/s standard operation, scaling to 1,500,000 wfms/s in UltraAcquire mode for transient event detection. Memory depth options span 250 Mpts standard, with 500 Mpts available, supporting extended capture windows.
Technical Specifications
• Channels: 4 analog + 1 external trigger
• Bandwidth: 400 MHz
• Real-Time Sample Rate: Up to 4 GSa/s (1 GSa/s with all channels active)
• Vertical Resolution: 12-bit standard; 16-bit high-resolution mode
• Vertical Sensitivity: 100 µV/div to 10 V/div
• Noise Floor: 18 µVrms typical
• Maximum Input Voltage: 1 MΩ—CAT I 300 Vrms, 400 Vpk; 50 Ω—5 Vrms
• Rise Time (10%–90%): ≤ 1.75 ns under 50 Ω
• Memory Depth: 250 Mpts (standard); 500 Mpts (optional)
• Waveform Capture Rate: 50,000 wfms/s standard; 1,500,000 wfms/s UltraAcquire
• Display: 10.1-inch capacitive touch; 1280 × 800 pixels
– Key Features
• True 12-bit quantization with 16× improvement over 8-bit resolution
• Switchable high-resolution acquisition mode for enhanced vertical fidelity
• Improved DC gain accuracy across all measurement ranges
• Dual USB 3.0 ports (front and rear) with host and device capability
• LAN connectivity with web browser control interface
• HDMI output for external display integration
• Optional battery pack for portable field measurements
– Typical Applications
• Semiconductor device characterization and validation
• Wide-bandgap material testing (GaN, SiC)
• Mixed-signal circuit debugging and protocol analysis
• High-sensitivity analog measurements requiring noise immunity
– Compatibility & Integration
USB 3.0, LAN, and HDMI ports enable integration into automated test systems, remote monitoring stations, and laboratory networks. Web-based control permits browser-based operation from networked workstations.
