The Measurement Computing/IOtech ADAC/5502MF-V is a PCI data acquisition board delivering 12-bit analog input at 100 kHz maximum throughput with configurable gain stages and flexible channel selection. This card integrates 16 single-ended or 8 differential analog inputs (expandable to 64), 16 TTL digital I/O lines, optional dual 16-bit DACs, and dual counter/timer channels into a single-slot form factor.
Technical Specifications
Analog Input
• 16 single-ended / pseudo-differential or 8 differential channels (expandable to 64)
• 12-bit A/D resolution
• 100 kHz maximum sampling rate
• Programmable gains: 1, 10, 100, 1000
• Input ranges: ±10 V or 0 to +10 V
• 176-element channel list RAM for per-channel gain and ordering
• A/D pacer clock: 0.0009 Hz to 100 kHz
Analog Output (Optional)
• Two clocked DACs at 200 kHz throughput
• 16-bit resolution
• Programmable outputs: ±10 V or 0 to +10 V
Digital I/O
• 16 TTL lines via 68-pin SCSI III connector, programmable in 8-bit ports
• 32 additional 5 V CMOS/LSTTL lines via two 40-pin internal headers, programmable in 16-bit ports
• Optional adapter connectors for isolated digital I/O panels
Counter/Timer
• Two counter input channels; two timer output channels
• Counts 5 V LSTTL rising edges up to 131,071 decimal
• Cumulative or incremental counting modes
Interface & Power
• PCI bus connection
• 68-pin high-density SCSI III rear connector
• +5 V auxiliary power to P3 and P5 connectors with individual fusing
– Key Features
• Expandable architecture supports up to 64 analog inputs
• Per-channel gain programming eliminates external jumper blocks
• Dual counter/timer functionality for event counting and pulse generation
• 16-bit optional DAC output at 200 kHz refresh rate
• TTL and CMOS/LSTTL digital line support
– Typical Applications
Process monitoring, transducer interfacing, event timing, multichannel signal acquisition, industrial control feedback loops, and test automation systems.
– Compatibility & Integration
Supported by Measurement Computing’s InstaCal and Universal Library software. Programming APIs available for C, C++, C# .NET, Visual Basic, Visual Basic .NET, and Python. MATLAB integration through Data Acquisition Toolbox Support Package. Compatible with Windows 2000 (SP4), Windows XP (SP2), and Windows Vista (32-bit).

















