The Rigol DP821 is a dual-channel programmable linear DC power supply delivering 140 W total output power for research, development, and educational applications. Channel 1 provides 0–60 V at 0–1 A, while Channel 2 delivers 0–8 V at 0–10 A, with 10 mV voltage and 10 mA current resolution on standard models. The 3.5-inch TFT display presents real-time output monitoring, voltage, current, and power measurements. Ripple and noise performance reaches <350 µVrms / 3 mVpp in normal mode, with linear and load regulation both <0.01% + 2 mV (voltage) and <0.01% + 250 µA (current). Fast transient response occurs within <50 µs.
Technical Specifications
• Total Output Power: 140 W across two channels
• Channel 1: 0–60 V, 0–1 A
• Channel 2: 0–8 V, 0–10 A
• Resolution: 10 mV (voltage), 10 mA (current)
• Display: 3.5-inch TFT
• Ripple & Noise: <350 µVrms / 3 mVpp (normal mode); <350 µVrms / 2 mVpp (20 Hz–20 MHz)
• Transient Response: <50 µs
• Line Regulation: <0.01% + 2 mV (voltage); <0.01% + 250 µA (current)
• Load Regulation: <0.01% + 2 mV (voltage); <0.01% + 250 µA (current)
• Operating Temperature: 0°C to 40°C
• AC Input: 100–250 Vac (±10%)
• Maximum Input Power: 450 VA
• Dimensions: 239 mm (W) × 157 mm (H) × 418 mm (D)
• Weight: ~10.0 kg
– Key Features
• Dual independent output channels with isolated control
• Built-in overvoltage (OVP), overcurrent (OCP), and overtemperature (OTP) protection
• Programmable timer supporting up to 2048 steps
• Waveform display and output analysis functions
• Output monitor and recorder capability
• Fan cooling for continuous operation
– Interfaces
• USB Host and USB Device (standard)
• Optional LAN, RS232, and Digital I/O with Trigger In/Out
• USB-to-GPIB converter available
– Typical Applications
Precision voltage and current sourcing in circuit development, component testing, automated test sequences, and educational laboratory environments.
