Abaco Systems / VMIC VMIVME-4140-000 Discrete Wire 32-Channel 12-Bit Analog Output Board

The Abaco Systems VMIVME-4140-000 is a 32-channel, 12-bit analog output board for VMEbus systems delivering high-density signal generation in industrial control and data acquisition applications. Each of the 32 channels features a dedicated 12-bit DAC with software-selectable output voltage ranges (unipolar: 0 to +10V, 0 to +5V, 0 to +2.5V; bipolar: ±2.5V, ±5V, ±10V). The board sources or sinks 10 mA maximum per channel at ±10 V with 0.8 Ω output impedance and supports both software and external synchronous update of double-buffered outputs in random (non-scanning) update mode.

Technical Specifications

• 32 analog output channels, 12-bit resolution


• Output voltage: ±10 V (software-selectable ranges from 0 to +10V to ±2.5V)


• Output current: 10 mA maximum per channel (sourcing/sinking capability)


• Output impedance: 0.8 Ω


• Update mode: Random update with software or external synchronous control


• Form factor: 6U VMEbus


• Discrete wire connectivity with mass-terminated cable support

Key Features

• One 12-bit DAC per output channel for independent signal generation


• Automatic calibration initiated by system reset or software command with offset and gain coefficients stored in RAM


• Extensive onboard self-test diagnostics with pass/fail indication via Self-Test Register


• Offline testing capability - analog outputs disconnect from field wiring independently


• Single reference potentiometer for system calibration


• Front panel status LED and reference voltage access connector


• PMC expansion slot support

Typical Applications

• Data acquisition systems


• Industrial control and automation


• Precision analog stimulation


• Automatic test equipment (ATE)

Compatibility & Integration Designed for VMEbus systems. Supports VxWorks, LynxOS, and Linux operating environments. Product entered Restricted Production Phase as of May 31, 2019.