Abaco Systems / VMIC VMIVME-4514-000 16-Channel Scanning Analog I/O Board

The Abaco Systems / VMIC VMIVME-4514-000 is a VMEbus-compatible analog I/O board delivering 16 input and 16 output channels, each with 12-bit resolution. Purpose-built for data acquisition, process control, and industrial automation, this double-width VME module supports differential and pseudo-differential input configurations across multiple programmable voltage ranges with flexible A/D operating modes.

Technical Specifications

• 16 channels with 12-bit ADC resolution


• Differential or pseudo-differential (single-ended) input types


• Programmable voltage ranges: 0 to +5 V, 0 to +10 V (unipolar); ±2.5 V, ±5 V, ±10 V (bipolar)


• Optional 36 Hz single-pole low-pass filter per channel


• Three A/D operating modes: Random Polling, Scanning Poll, Auto Scanning


• Input overvoltage protection via current-limiting resistors Analog Outputs


• 16 channels with 12-bit DAC resolution


• One Sample-and-Hold amplifier per channel


• Programmable voltage ranges: 0 to +5 V, 0 to +10 V (unipolar); ±2.5 V, ±5 V, ±10 V (bipolar)


• Output drive capability: ±10 mA at ±10 V


• Protection against indefinite short to common and momentary short to ±25 V


• Outputs disconnectable from I/O connector for off-line testing Power & Environmental


• +5 VDC supply: 3.0 A typical, 5.6 A maximum


• Operating temperature: 0 to 55 °C


• Storage temperature: −25 to +85 °C


• Form factor: VME double-width (160 × 233.5 mm) Performance & Integration


• Maximum settling time to 1 LSB: 1.7 ms


• On-board Built-in-Test (BIT) for active component diagnostics


• VMEbus Rev. C.1 compliant (A16:29, 2D:D16, D08 EO SLAVE)

Key Features

• Independent, programmable channel voltage ranges eliminate external scaling circuits


• Three acquisition modes accommodate random access, sequential polling, and continuous scanning workflows


• Per-channel low-pass filtering reduces noise without external components


• solid output protection handles common fault conditions in industrial environments


• Integrated diagnostics accelerate board-level verification and troubleshooting

Typical Applications

• Process control and monitoring systems


• Data acquisition for industrial automation


• Test and measurement instrumentation


• Military and aerospace embedded systems

Compatibility & Integration Complies with VMEbus specification Rev. C.1 and fits standard double-width VME cages. Requires +5 VDC power distribution and supports both differential and single-ended sensor interfaces.