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®
Data Acquisition
UMDAS 0802DA
USB Data Acquisition Module - 8
Channels of 48kHz 13-bit A/D, 16
DIO, with 2 channels of 12-bit D/A
USER’S MANUAL
VER. 1.1 • January 2006
No part of this manual may be reproduced without permission
®
CyberResearch , Inc.
www.cyberresearch.com
25 Business Park Dr., Branford, CT 06405 USA
203-483-8815 (9am to 5pm EST) FAX: 203-483-9024
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® CyberResearch Data Acquisition UMDAS 0802DA ©Copyright 2006 All Rights Reserved. January, 1 2006 The information in this document is subject to change without prior notice in order to improve reliability, design, and function and does not represent a commitment on the part of CyberResearch, Inc. In no event will CyberResearch, Inc. be liable for direct, indirect, special, incidental, or consequential damages arising out of the use of or inability to use the product or do
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® UMDAS 0802DA CyberResearch Data Acquisition Intentionally Blank iv ©Copyright 2006 CyberResearch, Inc.
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Table of Contents Preface About this User's Guide ......................................................................................................................vi What you will learn from this user's guide ........................................................................................................vi Conventions in this user's guide ........................................................................................................................vi Chapter 1 Intro
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UMDAS 0802DA User's Guide Non-volatile memory...................................................................................................................................... 4-5 Microcontroller............................................................................................................................................... 4-5 Power.................................................................................................................................................
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Preface About this User's Guide What you will learn from this user's guide This user's guide explains how to install, configure, and use the UMDAS 0802DA, and also refers you to related documents available on our web site, and to technical support resources. Conventions in this user's guide For more information on
Text presented in a box signifies additional information and helpful hints related to the subject matter you are reading. Caution! Shaded caution statements present infor
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Chapter 1 Introducing the UMDAS 0802DA This user's guide contains all of the information you need to connect the UMDAS 0802DA to your computer and to the signals you want to measure. The UMDAS 0802DA is part of the CyberResearch brand of USB- based data acquisition products. ® ® The UMDAS 0802DA is a USB 2.0 full-speed, device that is supported under popular Microsoft Windows operating systems. The UMDAS 0802DA is fully compatible with both USB 1.1 and USB 2.0 ports. Refer to the "Be su
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Screw terminal I/O connector UMDAS 0802DA User's Guide Introducing the UMDAS 0802DA UMDAS 0802DA block diagram UMDAS 0802DA functions are illustrated in the block diagram shown here. USB Full-speed USB 2.0 Compliant Interface 16 Analog Input DIO 8 single-ended SPI (13-bit) channels 8 Port A or 4 differential (14-bit) channels 8 Port B USB Analog Output Microcontroller 2 channels 2 SYNC (12
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UMDAS 0802DA User's Guide Introducing the UMDAS 0802DA Connecting a UMDAS 0802DA to your computer is easy Installing a data acquisition device has never been easier. ! The UMDAS 0802DA relies upon the Microsoft Human Interface Device (HID) class drivers. The HID class drivers ship with every copy of Windows that is designed to work with USB ports. We use the Microsoft HID because it is a
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Chapter 2 Installing the UMDAS 0802DA What comes with your UMDAS 0802DA shipment? As you unpack your UMDAS 0802DA, verify that the following components are included. Hardware ! UMDAS 0802DA ! USB cable (2 meter length) Additional documentation In addition to this hardware user's guide, you should also receive the Quick Start Guide (available in PDF on the software CD that ships with your device. This document supplies a brief description of the software you received with your UMD
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UMDAS 0802DA User's Guide Installing the UMDAS 0802DA Unpacking the UMDAS 0802DA As with any electronic device, you should take care while handling to avoid damage from static electricity. Before removing the UMDAS 0802DA from its packaging, ground yourself using a wrist strap or by simply touching the computer chassis or other grounded object to eliminate any stored static charge. If an
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UMDAS 0802DA User's Guide Installing the UMDAS 0802DA The last popup balloon or dialog states "Your new hardware is installed and ready to use," and the LED on the UMDAS 0802DA should flash and then remain lit. This indicates that communication is established between the UMDAS 0802DA and your computer. On most computers, you can install up to two UMDAS 0802DA units. If you need to conn
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Chapter 3 Functional Details Theory of operation - analog input acquisition modes The UMDAS 0802DA can acquire analog input data in two different modes software paced and continuous scan. Software paced mode In software paced mode, you can acquire one analog sample at a time. You initiate the A/D conversion by calling a software command. The analog value is converted to digital and returned to the computer. You can repeat this procedure until you have the total number of samples that
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UMDAS 0802DA User's Guide Functional Details USB connector The USB connector is on the right side of the UMDAS 0802DA. This connector provides +5 V power and communication. The voltage supplied through the USB connector is system-dependent, and may be less than 5 V. No external power supply is required. LED The LED on the front of the housing indicates the communica
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UMDAS 0802DA User's Guide Functional Details Screw terminal pins 21-40 The screw terminals on the bottom edge of the (pins 21 to 40) provide the following connections: ! 16 digital I/O connections (PortA0 to Port A7, and Port B0 to Port B7) ! One power connection (PC+5 V) ! Three ground connections (GND) Main connector and pin out Connector type Screw terminal
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UMDAS 0802DA User's Guide Functional Details Pin 3 AGND Pin 1 CH0 Figure 3-3. Single-ended measurement connection The following example shows the single-ended measurement data acquired by TracerDAQ. Figure 3-4. Measurement data (9 volt) plotted on TracerDAQ's Strip Chart Single-ended measurements using differential channels To perform a single-ended measurement u
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UMDAS 0802DA User's Guide Functional Details In differential mode, the following two requirements must be met for linear operation: ! Any analog input must remain in the −10V to +20V range with respect to ground at all times. ! The maximum differential voltage on any given analog input pair must remain within the selected voltage range. The input [common-mode volta
