The Abaco Systems / VMIC VMIVME-4116-060 is an 8-channel, 16-bit digital-to-analog converter board engineered for VMEbus-based industrial control and real-time data acquisition systems. Each channel delivers independently buffered voltage outputs with double-buffered data latches, enabling simultaneous updating across all eight channels. The board combines high-resolution conversion, tight accuracy specs, and integrated analog output isolation switches for comprehensive board-level diagnostics.
– Technical Specifications
• Resolution: 16-bit with 305 µV per LSB
• Analog Output Range: -10 V to +10 V (buffered voltage output)
• Output Current: ±5 mA at ±10 V
• Settling Time: Within 1/2 LSB in 10 µs
• Architecture: One DAC IC per channel with double-buffered latches
• Input Coding: 16-bit positive true offset binary or two’s complement
• Accuracy (Typical, 25 °C): Gain error ±1/2 LSB (adjusted); offset error ±1/2 LSB (adjusted); differential linearity ±0.003% FSR; linearity ±0.0015% FSR
• Drift: Gain drift ±10 PPM/°C; zero drift ±5 PPM of FSR/°C
• Operating Temperature: 0 to +50 °C
• Storage Temperature: -20 to +85 °C
• Humidity: 20 to 80% relative, noncondensing
• Altitude: Operation to 10,000 ft
• Dimensions: 160 × 233.35 mm (6U double height Eurocard)
– Key Features
• Built-in-Test functionality: analog output isolation switches on all eight channels, software-controllable
• Isolation switch ON resistance: approximately 100 Ω (maximum)
• Three selectable DAC update methods via jumpers and control/status register
• Data transfer in bytes or words (D00–D15)
• Forced air convection cooling
– Compatibility & Integration
• VMEbus Compliance: Full VMEbus specification adherence
• Form Factor: Double height Eurocard (6U) with two 96-pin DIN connectors
• Address Selection: 12 DIP switches decode VMEbus address lines A05–A15
• Access Mode: Jumper-selectable for nonprivileged or supervisory short I/O (factory configured for supervisory short I/O)
• Output Connector: Board connector P3
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