The HP/Agilent 6624A is a four-output DC power supply engineered for system integration and benchtop test applications. It delivers fully isolated, independently controlled outputs with dual-range capability and low-noise performance across all channels. The 3U package integrates GPIB control for automated test sequences, making it suitable for development labs, production testing, and integrated systems requiring precise, flexible power distribution.
## Technical Specifications
**Output Configuration**
• Four fully isolated outputs with dual-range operation
• Outputs 1 & 2: 0–7 V at 0–5 A (low range); 0–20 V at 0–2 A (high range)
• Outputs 3 & 4: 0–20 V at 0–2 A (low range); 0–50 V at 0–0.8 A (high range)
• Total output power: Up to 105 W across all channels
• Outputs support series and parallel connection for increased voltage or current capability
**Programming Accuracy (at 25°C ±5°C)**
• Voltage (7 V/5 A range): ±(0.06% of setting + 19 mV)
• Voltage (20 V/2 A and 50 V/0.8 A ranges): ±(0.06% of setting + 50 mV)
• Current (7 V/5 A range): ±(0.16% of setting + 50 mA)
• Current (20 V/2 A and 50 V/0.8 A ranges): ±(0.16% of setting + 20 mA)
**Readback Accuracy (at 25°C ±5°C)**
• Voltage (7 V/5 A and 20 V/2 A ranges): ±(0.05% of reading + 20 mV)
• Voltage (50 V/0.8 A range): ±(0.05% of reading + 50 mV)
• Current (7 V/5 A and 20 V/2 A ranges): ±(0.1% of reading + 10 mA)
• Current (50 V/0.8 A range): ±(0.1% of reading + 4 mA)
• Negative current readback (7 V/5 A and 20 V/2 A): ±(0.2% of reading + 25 mA)
• Negative current readback (50 V/0.8 A): ±(0.2% of reading + 8 mA)
**Noise and Regulation**
• Ripple and noise (20 Hz to 20 MHz): ≤500 µV RMS, ≤3 mV peak-to-peak
• Constant current noise: ≤1 mA RMS
• Load regulation (voltage): ≤0.5 mV
• Line regulation (voltage): ≤0.5 mV
• Cross regulation (7 V/5 A outputs): ≤0.25 mV; (20 V/2 A outputs): ≤1 mV
• Remote sensing supported with up to 1 V drop per load lead
## Key Features
• Dual-range outputs automatically select appropriate voltage/current ranges
• GPIB interface for remote programming and monitoring
• Low-noise outputs suitable for sensitive analog and RF applications
• Independent output control enables parallel and series configurations
• Remote sensing compensates for voltage drop in load leads
