Owon ADS804A Oscilloscope – 70 MHz, 4CH, 7" Touchscreen, 12-Bit

Owon ADS804A Oscilloscope – 70 MHz, 4CH, 7" Touchscreen, 12-Bit

The Owon ADS804A is an affordable yet powerful digital oscilloscope designed for general-purpose multi-channel signal analysis. With 70 MHz bandwidth, 12-bit resolution, and four independent input channels, it is ideal for technicians, engineers, and educational users who need reliable performance on a budget. The advanced trigger functions, high waveform refresh rate, and intuitive touchscreen interface make it a practical solution for daily measurement tasks in labs, repair shops, or classroom environments.

Oscilloscope Specifications

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Channels: 4
Bandwidth: 70 MHz
Real-Time Sampling Rate: 1.25 GSa/s (single channel), 625 MSa/s (all channels active)
Memory Depth: Up to 50 Mpts
Waveform Refresh Rate: Up to 700,000 wfms/s
Vertical Resolution: 12-bit
Vertical Sensitivity: 500 µV/div – 10 V/div
FFT Analysis: 1 million points for detailed frequency domain measurements

Advanced Features

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The device supports multiple trigger types including edge, video, pulse, slope, runt, timeout, Nth edge, logic, and protocol triggers for RS232/UART, I2C, SPI, CAN, and LIN. Hardware-level protocol decoding is available for 2 channels. USB host capability allows connection of a mouse or keyboard, and optional Wi-Fi/Bluetooth modules support wireless printing. The slim, lightweight body design makes it easy to use in space-limited workbenches or portable setups.

Segmented memory enables targeted waveform capture and analysis. The integrated mask test function allows quick pass/fail analysis based on user-defined criteria.

Touchscreen and Usability

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The 7-inch capacitive touchscreen with 1024×600 resolution supports multi-touch input and provides a user-friendly interface. The on-screen menu system and gesture control simplify measurement operations. At just 1.5 kg, the device is highly portable and easy to deploy in various environments.

Additional Technical Details

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Dimensions: 260 mm × 160 mm × 78 mm
Input Impedance: 1 MΩ ±2%, parallel 20 pF ±5%
Probe Attenuation Range: 1× to 1000×, customizable
Voltmeter Function: Supports DC, AC, and AC+DC RMS with 4-digit resolution
Frequency Counter: Built-in 6-digit counter for accurate timing measurements
Power Input: Type-C port (12 V / 3 A), compatible with power banks