This document describes the Analog Data Module (ADM), a peripheral designed for Digital Equipment Corporation's Professional 300 Series computers (specifically the Professional 350 and 380).
Key features and functions include:
- High-Accuracy Analog Data Acquisition: Provides 8 true differential analog input channels with a 16-bit analog-to-digital converter, capable of handling signals from microvolts to 5 volts. It includes a Programmable Gain Amplifier (with auto-ranging up to 132dB dynamic range) and self-calibration for enhanced precision.
- Digital Input/Output: Features 8-bit parallel digital I/O ports for handshaking, instrument control, and digital data transfers, allowing synchronization with analog data.
- Real-Time Capabilities: Incorporates an on-board programmable real-time clock for precise timing of data acquisition and a First-In, First-Out (FIFO) buffer memory to prevent data loss during high-speed acquisition or when the host computer is busy.
- Connectivity: Connects to the Professional via the Real Time Interface (RTI) parallel digital port, allowing concurrent use of RTI's serial and IEEE-488 bus ports.
- Software Support: Supported by the Professional Real Time Interface Library (PRTIL), which provides high-level subroutines callable from FORTRAN, BASIC-PLUS-2, or PASCAL. This enables users to control experiments, acquire/process data, plot findings, and generate reports, with optional integration into RS/1 for advanced data analysis.
- Benefits: Enhances the accuracy and resolution of collected data, automates data acquisition from instruments, prevents data loss, and improves convenience for application development in scientific and laboratory environments.
The ADM is a separate module that requires the Real Time Interface (RTI) hardware and specific software toolkits for programming. It is supported by Digital Equipment Corporation's hardware, software, and training services.