NI AT-MIO-16F-5 Multifunction Analog, Digital, and Timing I/O Board

The National Instruments AT-MIO-16F-5 is a multifunction I/O board for data acquisition, instrument control, and automated test applications. It combines 12-bit analog input and output, eight digital I/O lines, and three counter/timers on a single 16-bit ISA interface card. Built for PC AT and EISA systems, this board delivers high-speed analog sampling with integrated DMA support and real-time system integration via RTSI bus.

– Technical Specifications

Analog Input
• 12-bit ADC with 200 kS/s maximum sampling rate (5 µsec minimum)
• 256-word A/D FIFO buffer
• 16 single-ended or 8 differential input channels
• Programmable gains: 0.5, 1, 2, 5, 10, 20, 50, 100
• Unipolar and bipolar voltage input ranges
• Internal or external A/D timing control
• Expandable to 256 single-ended inputs via cascaded AMUX-64T multiplexer boards

Analog Output
• Two 12-bit DACs with double-buffering and multiplying capability
• 10 V onboard reference voltage
• Unipolar and bipolar voltage output
• Waveform generation via internal timer or external signal update

Digital I/O
• Eight TTL-compatible lines sinking up to 24 mA

Timing and Counters
• Three independent 16-bit counter/timers
• Frequency counting, event counting, and pulse output modes
• Timer-generated interrupts
• Four system-level timing triggers

– Key Features

• Full DMA channel capability for analog input and output transfers
• RTSI bus interface for multi-card synchronization
• Onboard I/O hardware auto-calibration circuitry
• 50-pin multi-I/O connector

– Typical Applications

Data acquisition systems, real-time instrumentation control, automated test benches, and precision signal generation requiring synchronized analog and digital operations.

– Compatibility & Integration

IBM PC AT, EISA-compatible personal computers. Works with NI-DAQ software, LabVIEW, and LabWindows environments.