The Keysight/Agilent/HP E1328A is a 4-channel Digital-to-Analog converter module engineered for VXIbus systems. It delivers four independent, isolated 16-bit D/A channels configured for either DC voltage or DC current output, with integrated short-circuit protection on all channels. Each channel is electrically isolated from its peers and the chassis, capable of floating up to 350 Vdc from ground. The module occupies a single B-size VXI slot and employs register-based programming for precise control.
Technical Specifications
Output Ranges
• DC Voltage: ±10.92 Vdc (calibrated on) or ±12 Vdc (calibrated off) per channel
• DC Current: ±21.8 mAdc (calibrated on) or ±24 mAdc (calibrated off) per channel
• Programming Interval: 333 µV (calibrated off)
• Expanded Voltage Output: Up to 48 Vdc via series channel connection
• Expanded Current Output: Up to 96 mAdc via parallel channel connection
Performance Metrics
• Resolution: 16 bits across all channels
• Monotonicity: To 2 mV (calibrated on)
• DC Amplitude Accuracy: ±(0.05% of output + 3.3 mV) at 24-hour (calibrated on, within ±5 °C); ±(0.15% of output + 29 mV) at 90-day (calibrated on, within ±5 °C)
• Differential Ripple and Noise: <2 mV rms (20 Hz–250 kHz, 1 kΩ load)
• Short-Circuit Current: ≤30 mA
– Key Features
• Four independent, isolated channels with software calibration capability
• Remote voltage sensing with no-fault operation
• Electrical isolation from chassis ground; floating operation to 350 Vdc
• Short-circuit protection on all voltage and current output channels
• Series/parallel channel connection for extended output ranges
– Typical Applications
Automated test equipment, signal generation, control systems, and precision analog signal sourcing requiring isolated, multi-channel output capability.
– Compatibility & Integration
Designed for B-size VXI mainframes; adaptable to C-size mainframes with appropriate adapter (e.g., E1403C). Integrates with complementary VXI instruments such as multimeters for automated calibration workflows.
