Kontron / Thales / Matrix MD-DAADIO4NFP Combination Board

The Kontron / Thales / Matrix MD-DAADIO4NFP is a VME double Eurocard (6U) combination board integrating analog-to-digital, digital-to-analog, and parallel I/O functionality for real-time data acquisition and control in embedded systems. It occupies a single VME slot and delivers flexible signal conditioning with software-configurable gain, multiple input/output modes, and full interrupt-driven parallel I/O control.

Technical Specifications Analog-to-Digital Converter (ADC):

12-bit resolution with 12 µs or 8 µs conversion time

32 single-ended inputs (referenced to common analog ground)

32 pseudo-differential inputs (referenced to a common point)

16 differential inputs with independent reference inputs

Jumper-selectable input voltage ranges: 0-10 V, ±5 V, ±10 V

Overvoltage tolerance to ±35 V without damage

Software-programmable gain factors: 1, 2, 4, 8, 16, 10, 20, 40, 80, and 160

Dynamic gain switching between channel samples Digital-to-Analog Converter (DAC):

12-bit resolution per channel

Eight independent voltage output channels

Jumper-selectable output ranges: 0-5 V, 0-10 V, ±5 V, ±10 V

Multiplying D/A and current loop capabilities

External reference input for scaling to non-standard ranges

Fully independent output drive circuitry Voltage-to-Current Adapter (VCA):

Converts channel pairs to current loop operation

Supported modes: 4-20 mA, 0-20 mA, or 5-25 mA

Plug-in configuration for any number of channel pairs Parallel I/O (PIO):

48 TTL I/O lines across six ports

Individual software configuration as input or output

Port A: Eight lines with interrupt source capability

Per-line interrupt masking and pattern/state-change detection

Key Features

Single VME slot form factor (6U double Eurocard)

Flexible jumper and software configuration for input/output modes

Interrupt-driven parallel I/O with pattern recognition

Programmable interrupt level, vector, and source registers

Independent control and data registers for D/A and A/D sections

Typical Applications Process control, data acquisition systems, industrial automation, sensor conditioning, and multi-channel signal routing in VME-based embedded platforms.

Compatibility & Integration Designed for VME architecture with standard register-based control interface. All ADC, DAC, and PIO functions are independently configurable through board control and status registers.