Rigol DHO1074 – 4-Channel Digital Oscilloscope (70 MHz)

The Rigol DHO1074 is a 4-channel digital oscilloscope delivering 70 MHz analog bandwidth and real-time sample rates to 2 GSa/s for electronics testing, signal debugging, and educational labs. Built on Rigol’s Centaurus chipset, it captures waveforms at up to 1,500,000 per second in UltraAcquire mode, enabling rapid fault detection and transient analysis. The instrument combines 12-bit vertical resolution (expandable to 16-bit in high-resolution mode) with memory depths up to 100 Mpts, providing both precision and extended signal recording capability. A 10.1-inch HD capacitive touchscreen with 1280 × 800 pixel resolution drives an intuitive interface, while integrated serial triggering and decoding—including SPI, I2C, RS-232/UART, CAN, and LIN—streamline protocol-level debugging. Vertical sensitivity spans 500 μV/div to 10 V/div with rise time of ≤5 ns. Connectivity includes dual USB 3.0 host ports, USB device port, LAN, HDMI, external trigger input/output, 10 MHz reference clock I/O, and RS-232 serial interface. The instrument accepts CAT I inputs to 300 Vrms / 400 Vpk and operates on 100–240 VAC mains. Standard accessories include four PVP3150 350 MHz passive probes and USB cable, with compatibility for RP3500A high-impedance probes (DC–500 MHz) and DC-rated current probes via external power supply.

– Technical Specifications

Bandwidth & Acquisition
• 70 MHz analog bandwidth (–3 dB)
• 4 analog channels + 1 external trigger
• Up to 2 GSa/s real-time sample rate
• 1,500,000 wfms/s (UltraAcquire) / 50,000 wfms/s (vector mode)
• 12-bit vertical resolution; 16-bit in high-resolution mode
• 50 Mpts standard memory; up to 100 Mpts optional
• ≤5 ns rise time

Display & Interface
• 10.1-inch HD capacitive color touchscreen, 1280 × 800 pixels
• Dual USB 3.0 host (front), USB device (rear)
• LAN, HDMI, RS-232, external trigger I/O, 10 MHz reference clock I/O, pass/fail output

Triggering & Decoding
• Serial bus triggers and decoding: SPI, I2C, RS-232/UART, CAN, LIN

Electrical & Operating Environment
• Input voltage: 100–240 VAC
• Maximum input: CAT I 300 Vrms, 400 Vpk (DC + peak)
• Vertical range: 500 μV/div to 10 V/div
• Operating temperature: 0°C to +50°C

– Key Features

• Ultra-high waveform capture rate in UltraAcquire mode for fast transient detection
• Extended memory depth enables long-duration signal recording and post-capture analysis
• Switchable 12/16-bit resolution for low-level signal fidelity
• Integrated serial protocol decode eliminates external analyzers
• Low-noise floor optimizes measurement accuracy on small-amplitude signals

– Typical Applications

• Embedded systems and microcontroller debugging
• Serial communication protocol validation (I2C, SPI, CAN, LIN, RS-232/UART)
• Power supply ripple and transient analysis
• Signal integrity assessment in PCB design and manufacturing
• Educational electronics laboratory instruction

– Compatibility & Integration

The DHO1074 ships with four PVP3150 350 MHz passive probes. RP3500A high-impedance probes (10:1, DC–500 MHz) are compatible. Current probes with DC–50 MHz, DC–100 MHz, and DC–10 MHz ratings require RP1000P external power supply for operation.