Abaco Systems / VMIC VMIVME-4116-060 8-Channel, 16-Bit Analog Output Board

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