The HP/Agilent 6628A is a 50 W dual-output precision DC power supply engineered for R&D and automated test environments demanding fast programming, high accuracy, and reliable DUT protection. Each isolated output delivers independent voltage and current control with configurable series or parallel operation for application flexibility.
## Technical Specifications
**Output Ratings**
• Output 1 (Low Range): 0–16 V, 0–200 mA
• Output 2 (High Range): 0–50 V, 0–1 A (or alternatively 0–16 V, 0–2 A)
• Both outputs rated at 50 W per output
**Programming & Readback Accuracy** (at 25°C ±5°C)
• Voltage (Low Range): ±(0.016% of setting + 3 mV) programming; ±(0.016% of setting + 3.5 mV) readback
• Voltage (High Range): ±(0.016% of setting + 10 mV) programming and readback
• Current (Low Range): ±(0.04% of setting + 185 µA) programming; ±(0.04% of setting + 250 µA) readback
• Current (High Range): ±(0.04% of setting + 500 µA) programming; ±(0.04% of setting + 550 µA) readback
**Output Ripple & Noise** (20 Hz to 20 MHz)
• Constant Voltage: 500 µV RMS, 3 mV peak-to-peak
• Constant Current: 0.1 mA RMS
**Input Power**
• Maximum: 550 W, 720 VA
• Available line options: 87–106 VAC, 104–127 VAC, 191–233 VAC, or 209–250 VAC (47–66 Hz)
**Environmental**
• Operating Temperature: 0°C to 55°C
• Humidity: Up to 95% relative humidity
• Altitude: Up to 2000 m
## Key Features
• Dual isolated outputs; series or parallel connection capability
• Fast up/down programming with active down-programmer sinking full rated current
• Fast CV/CC crossover for transient protection
• Precision low-current measurement capability
• Remote sensing support
• 3U high form factor
## Compatibility & Integration
• GPIB interface (SH1, AH1, T6, L4, SR1, RL1, PP1, DC1, DT0, C0, E1)
• SCPI command compatible
• VXIPlug&Play drivers available
• Front-panel keypad or remote control via GPIB
• UL 1244 listed; IEC 61010-1 compliant
