The Abaco Systems VMIVME-3122-010 is a 16-bit Analog-to-Digital Converter module for VMEbus systems, delivering high-resolution data acquisition across up to 64 configurable analog input channels. This card supports differential and single-ended inputs with selectable voltage ranges (±2.5 V, ±5 V, ±10 V, 0 to +5 V, 0 to +10 V) and conversion rates up to 100 kHz on the high-performance option or 50 kHz on standard performance. The module features software-selectable programmable gain (×1 or ×10) per channel or globally, adjustable scan modes including autoscan and single-scan operation, and a dual-port data buffer ranging from 16 to 1,024 words. Channel block size is configurable as 1, 8, 16, 32, or 64 channels, with scanning rates software-selectable from 381 Hz to either 100 kHz (high-performance) or 50 kHz (standard). Access time is 600 ns typical for scanning modes and 600 ns maximum for nonscanning. The high-performance option includes common-mode protection via 22 MΩ pull-down resistors on each input; standard performance requires user-controlled common-mode voltage management. Multiple boards—up to 16—can be synchronized for simultaneous scan initiation. Optional low-pass input filters improve signal quality.
Technical Specifications
Analog-to-Digital Conversion
• Resolution: 16-bit
• Channels: 16, 32, 48, or 64 (configurable differential or single-ended)
• Input voltage ranges: ±2.5 V, ±5 V, ±10 V, 0 to +5 V, 0 to +10 V
• Maximum conversion rate: 100 kHz (high-performance) or 50 kHz (standard)
• Input bandwidth: 5 kHz (standard) or 40 kHz (high-performance)
• Access time (scanning): 600 ns typical, 1.2 µs maximum
• Access time (nonscanning): 600 ns maximum
Signal Conditioning
• Programmable gain: ×1 or ×10, per-channel or fixed across all channels
• Common-mode protection (high-performance): 22 MΩ pull-down resistors
• Optional low-pass input filters available
Operating Modes
• Scan modes: Autoscan, Single Scan, Continuous, Burst
• Trigger modes: Three supported
• Scanning rate range: 381 Hz to 100 kHz (high-performance) or 381 Hz to 50 kHz (standard)
• Channel block sizes: 1, 8, 16, 32, or 64
• Data buffer: 16 to 1,024 words dual-port
– Key Features
• VMEbus compliance (A16, A24, A32 address spaces; Supervisory and Non-privilege modes)
• Up to 16-board synchronization capability
• 96-pin DIN nonlatching or 64-pin DIN latching input connectors
• 6U (4HP) single-slot Eurocard form factor, 9.2 in. (233.4 mm) height
– Typical Applications
Industrial control systems, scientific research instrumentation, high-performance data acquisition environments requiring accurate analog-to-digital signal conversion.
– Compatibility & Integration
The VMIVME-3122-010 integrates directly into VMEbus-based systems with flexible address space configuration and multiple synchronization options for multi-board deployments.
