The Rigol DG831 is a single-channel function and arbitrary waveform generator delivering up to 35 MHz output with 16-bit vertical resolution and a 125 MSa/s sample rate. This compact, fanless instrument integrates signal generation, modulation, and frequency measurement into one platform, controlled via a 4.3-inch color touchscreen or USB/GPIB interfaces. With frequency stability of ±1 ppm, phase noise at -105 dBc/Hz, and jitter as low as 200 ps, the DG831 generates standard waveforms, 160 built-in arbitrary signals, and modulated outputs across AM, FM, PM, ASK, FSK, and PSK. A 7-digit/s frequency counter with 240 MHz bandwidth provides real-time signal analysis. The unit operates silently without cooling fans and supports up to 8 Mpts arbitrary waveform memory per channel via optional upgrade, plus dual-channel capability through software licensing.
– Technical Specifications
• Maximum Output Frequency: 35 MHz
• Sample Rate: 125 MSa/s
• Vertical Resolution: 16 bits
• Frequency Stability: ±1 ppm
• Phase Noise: -105 dBc/Hz
• Frequency Resolution: 1 μHz
• Output Jitter: 200 ps
• Amplitude Range: 1 mVpp to 10 Vpp (high impedance); 1–2.5 Vpp (50 Ω output)
• Output Precision: ±(1% + 5 mV)
• Arbitrary Waveform Memory: 2 Mpts standard; 8 Mpts optional per channel
• Frequency Counter: 7 digits/s, 240 MHz bandwidth
• Display: 4.3-inch TFT color touchscreen
• Dimensions: 237.4 × 97 × 268 mm
• Weight: 1.75 kg
– Key Features
• Single channel (upgradeable to 2 channels via software key)
• 160 built-in arbitrary waveforms for engineering, medical, automotive, and mathematical applications
• SiFi II Technology for point-by-point arbitrary waveform generation without distortion
• Analog modulation: AM, FM, PM
• Digital modulation: ASK, FSK, PSK, PWM
• Built-in harmonic generator (up to 8th order)
• Standard waveforms: Sine, Square, Ramp, Pulse, Harmonic, PRBS, Dual-tone, RS232
• Arbitrary waveform sequence editing
• Fanless design for silent operation
– Typical Applications
Education, research, prototype validation, production testing, signal characterization, and waveform development across multiple engineering disciplines.
– Compatibility & Integration
USB Host/Device interface, GPIB via USB adapter, RS232, optional USB-LAN ethernet adapter (100 Mbps). Arbitrary waveforms generated via PC software.
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