The Measurement Computing PCI-DAS6025 is a multifunction PCI-based data acquisition card that integrates analog input, analog output, digital I/O, and counter/timer functionality for industrial and laboratory applications. It delivers 12-bit resolution across analog channels with configurable input modes, dual 12-bit voltage outputs, 24 lines of digital I/O via 82C55 controller, and three 16-bit counter/timers, making it suitable for process control, automated testing, and precision measurement systems.
Technical Specifications
Analog Input
• 16 single-ended or 8 differential channels
• 12-bit resolution
• Up to 200 kS/s sampling rate (single channel)
• Input ranges: ±10 V, ±5 V, ±0.5 V, ±0.05 V
• Overall error: ±1.7 LSB max
• Noise performance varies by range (see specifications table)
• Input modes: 8-channel differential, 16-channel single-ended referenced to ground, or 16-channel single-ended non-referenced
Analog Output
• 2 voltage output channels
• 12-bit resolution, guaranteed monotonic
• ±10 V range
• DNL: ±1.0 LSB max
• Slew rate: 10 V/µs min
• Settling time: 20 V step to 0.012% (0.5 µs)
• Double-buffered, multiplying converter topology
Digital I/O
• 24 lines via 82C55 (programmable: 2×8 + 2×4 banks, 3×8 banks, or 2×8 with handshake)
• 8 discrete TTL-compatible lines, independently programmable as input or output
• All pins pulled to +5 V via 47 kΩ resistors (default); pull-down option available
Counter/Timers
• Three 16-bit counter/timer channels
• 40 MHz internal time base, 50 ppm stability
• External source support via AUXIN
• Software-configurable: time base, trigger sources, gating modes, rising/falling edge selection
• Unlimited pre-/post-trigger capability
– Key Features
• Software-selectable analog input ranges and operating modes via InstaCal
• Accuracy valid within ±1 °C of internal calibration or ±10 °C of factory calibration
• Flexible triggering and gating for synchronized acquisition
• PCI interface integration for standard system platforms
– Typical Applications
Data acquisition systems, process control loops, automated test systems, real-time signal monitoring, and control applications requiring mixed-signal I/O.
