The National Instruments VXI-AO-48XDC is a high-density analog output module for VXI-based data acquisition and control systems. It delivers 48 isolated DC voltage output channels and 48 DC current output channels with 18-bit D/A resolution, plus 32 bidirectional digital I/O lines. Each output level programs independently, supporting precise DC setpoint generation and process control applications across industrial and scientific environments.
Technical Specifications
Analog Output Channels
• 48 voltage output channels
• 48 current output channels with 0-20 mA high-compliance source capability
• 18-bit D/A resolution for voltage and current outputs
• Independent programmable output levels per channel
Digital I/O Channels
• 32 bidirectional lines organized as four 8-bit TTL-compatible ports
• Each port configurable as input or output
• 96-pin DIN header connector for external device interfacing
Calibration
• Software-calibrated with factory calibration data stored in onboard EEPROM nvRAM
– Key Features
• Programmable DC voltage and current source functionality
• Programmable power state control
• VXIbus integration with factory-default logical address 5
• TTL-compatible digital I/O for relay, LED, and solid-state relay interfacing
– Typical Applications
• Equipment and protection testing
• Industrial process monitoring and control
• Automated test equipment (ATE) signal generation
• Machine automation and setpoint generation
• Electromechanical relay and optical isolation interfacing
• Laboratory instrumentation and electronic test
– Compatibility & Integration
Fully supported by NI-DAQ, VXIplug&play, VISA, NI-VISA, and NI-VXI drivers. Compatible with LabVIEW, LabWindows/CVI, ComponentWorks, and VirtualBench across Windows NT/95/3.1 platforms.
