The Agilent/Keysight 66309B is a dual-output DC power supply engineered for mobile communications and battery-powered device testing. Each of its two independent outputs delivers 0–15 V at 0–3 A continuous, with Output 1 capable of peak current to 5 A for up to 7 ms. Combined power capability reaches 90 W. The 66309B addresses the dynamic demands of wireless device testing—rapid current pulses, voltage transients, and simultaneous battery and charging circuit validation—while occupying only half-rack width at 2 RU height.
Programming accuracy reaches ±0.05% + 10 mV for voltage and ±0.05% + 1.33 mA for current. Readback accuracy is ±0.03% + 5 mV (voltage) and ±0.2% + 0.5 mA (current above 20 mA). Ripple and noise remain tightly controlled: 1 mV RMS and 6 mV peak-to-peak voltage; 2 mA RMS current. Transient response settles in less than 35 µs with maximum voltage droop of 70 mV. Remote sensing capability accommodates up to 4 V drop per load lead, with load regulation adjustable accordingly.
Technical Specifications
• Outputs: 2 independent channels, each 0–15 V, 0–3 A continuous; Output 1 supports 5 A peak (≤7 ms)
• Total Power: 90 W maximum
• Voltage Accuracy: ±0.05% + 10 mV (programming); ±0.03% + 5 mV (readback)
• Current Accuracy: ±0.05% + 1.33 mA (programming); ±0.2% + 0.5 mA (readback, >20 mA)
• Voltage Ripple & Noise: 1 mV RMS, 6 mV peak-to-peak
• Current Ripple: 2 mA RMS
• Transient Response: <35 µs settling; 70 mV maximum droop
• Input: 104–127 VAC, 50/60 Hz (standard); 100/120/220/230 VAC options available
• Dimensions: 212.8 × 88.1 × 435 mm (half-rack, 2 RU)
• Compliance: Installation Category II, Pollution Degree 2
– Key Features
• GPIB (IEEE 488.2) interface with SCPI command language
• Remote sensing with 4 V drop tolerance per load lead
• Compact half-rack form factor eliminates separate supply requirements
• Simultaneous dual-output operation for battery and charger testing
– Typical Applications
• Mobile phone and wireless device power validation
• Battery charging circuit characterization
• Rapid transient and current pulse simulation
– Compatibility & Integration
GPIB connectivity and SCPI compatibility enable integration into automated test systems and ATE platforms for mobile communications development and production.















