The HP/Agilent 6633B is a 100 W linear-regulated DC power supply delivering 0–50 V at 0–2 A output. Built for high-throughput ATE and benchtop environments, it combines precision voltage programming (±20 mV) with microamp-level current measurement and extremely low output noise (0.5 mV rms in normal mode). Fast transient response—100 µs recovery within 0.1% following a 50% load step—and active down-programming that sinks full rated current make it ideal for demanding test and R&D applications requiring both speed and measurement accuracy.
– Technical Specifications
Output Ratings
• Voltage: 0–50 V
• Current: 0–2 A
• Power: 100 W
Programming Accuracy (25°C ±5°C)
• Voltage: ±20 mV
• Current: ±0.05% + 1 mA
Ripple and Noise (20 Hz–20 MHz)
• Voltage normal mode: 0.5 mV rms / 3 mV peak-to-peak
• Voltage fast mode: 1 mV rms / 15 mV peak-to-peak
• Current: 2 mA rms
Load Regulation
• Voltage: 4 mV
• Current: 2 mA
Line Regulation
• Voltage: 1 mV
• Current: 1 mA
Response Time
• Rise/fall time (10/90%): <2 ms (400 µs fast mode)
• Voltage settling (<1 LSB): <6 ms (2 ms fast mode)
• Transient recovery (0.1% or 20 mV): <100 µs (50 µs fast mode)
• Measurement time: 50 ms average
– Key Features
• Programmable active down-programmer sinks full rated current for rapid output shutdown
• Precision microamp-level measurement system for low-current monitoring
• Stored states and advanced status reporting
• HP-IB (IEEE-488), RS-232, and SCPI control
• VXI Plug&Play driver support
• Optional isolation and polarity reversal relays
• Optional front panel binding posts for benchtop use
• Compact form factor: 425.5 mm W × 88.1 mm H × 364.4 mm D; 12.7 kg
– Typical Applications
Manufacturing ATE systems, component characterization, and R&D benchtop test where low noise, fast settling, and precise current measurement are critical.
– Compatibility & Integration
Remote operation via HP-IB/IEEE-488, RS-232, or SCPI commands. Input: 87–253 VAC, 47–63 Hz (multiple voltage options); full-load draw 3.5 A at 250 W.
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