Abaco Systems / VMIC VMIVME-4512-300 16-Channel Analog I/O Board

The Abaco Systems / VMIC VMIVME-4512-300 is a VMEbus Rev. C.1 compatible analog I/O board delivering 16 input and 16 output channels in a standard VME double-height, double Eurocard form factor. Built for high-performance data acquisition and industrial control, it features 12-bit resolution on both ADC and DAC with programmable voltage ranges and integrated Built-in-Test capability.

– Technical Specifications

Form Factor & Compatibility
• Standard VME double-height, double Eurocard board
• VMEbus Specification Rev. C.1 compliant
• On-board jumpers for address selection and address modifier bit decoding

Analog Output Channels (16 Total)
• 12-bit DAC resolution
• Output voltage ranges (programmable): 0 to +5 V, 0 to +10 V (unipolar); ±2.5 V, ±5 V, ±10 V (bipolar)
• Output current capability: 10 mA sourcing or sinking at ±10 V
• Output impedance: 0.1 Ω
• Total error: ±0.05% of full-scale range
• Maximum settling time to 1 LSB: 1.7 ms
• Refresh update rate: 550 Hz (default) or 1,600 Hz (FAST REFRESH mode)
• Short-circuit protection: indefinite short-to-common; momentary short to ±25 V
• Monotonic over full temperature range
• Accepts straight binary and offset binary digital codes, right-justified in 16-bit words
• Offline testing capability with disconnectable I/O connector

Analog Input Channels (16 Total)
• 12-bit ADC resolution with on-board multirange digitization
• Input configuration: differential or pseudo-differential/single-ended
• Input voltage ranges (programmable): 0 to +5 V, 0 to +10 V (unipolar); ±2.5 V, ±5 V, ±10 V (bipolar)
• Optional 36 Hz single-pole input filter available

Built-in-Test (BIT)
• Utilizes on-board A/D converter multiplexers for testing active components and output switches

– Key Features

• Dual programmable voltage ranges support diverse sensor and actuator interfaces
• Low output impedance (0.1 Ω) enables direct drive of high-impedance loads
• Tight total error specification (±0.05% FSR) ensures high measurement accuracy
• Flexible input coupling options support both differential and single-ended signal sources
• Integrated BIT streamlines field diagnostics and maintenance verification