The Keysight/Agilent/HP 59501B is an HP-IB Isolated DAC Power Supply Programmer that translates digital commands received over HP-IB into programmable analog voltage outputs. Operating as a digital-to-analog converter with 600 Vdc isolation, it protects instrumentation on the bus while providing precise control of HP power supplies that accept analog voltage programming. The device also functions as a standalone low-level DC signal source for component testing and characterization.
Technical Specifications
Output Voltage (Programmable)
• Unipolar High Range: 0 to 9.99 V
• Unipolar Low Range: 0 to 0.999 V
• Bipolar High Range: −10 to +9.98 V
• Bipolar Low Range: −1 to +0.998 V
Output Current: 10 mA maximum
Resolution
• Unipolar High Range: 10 mV
• Unipolar Low Range: 1 mV
• Bipolar High Range: 20 mV
• Bipolar Low Range: 2 mV
Accuracy (23°C ±5°C)
• Unipolar High Range: 0.05% M + 0.25% P
• Unipolar Low Range: 0.01% M + 0.25% P
• Bipolar High Range: 0.1% M + 0.25% P
• Bipolar Low Range: 0.02% M + 0.25% P
Temperature Coefficient
• High Range: 0.005% M/°C + 0.015% P/°C
• Low Range: 0.01% M/°C + 0.015% P/°C
Noise & Ripple: 2 mV rms / 10 mV p-p
Conversion Time: Approximately 250 µs from data reception to maximum output voltage
Programming Speed: Approximately 250 µs for output to reach 99% of programmed value (resistive load)
– Key Features
• Selectable Unipolar or Bipolar mode via rear panel switch
• High/Low range selection for ten-to-one resolution improvement
• Front panel coarse and fine full-scale adjustments
• Front panel zero offset adjustment
• HP-IB Listener and Acceptor Handshake functional capabilities
• 600 Vdc isolation between HP-IB and output terminals
– Physical Specifications
• Dimensions: 101.6 mm H × 212.9 mm W × 294.6 mm D (4″ × 8.38″ × 11.6″)
• Net Weight: 1.82 kg (4 lb)
– Compatibility & Integration
HP-IB (Hewlett-Packard Interface Bus) interface with Listener and Acceptor Handshake capabilities. Isolated architecture suitable for multi-instrument HP-IB systems where power supply outputs could affect bus integrity.


















