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CyberResearch UMDAS 0802DA User Manual

Usb data acquisition module 8 channels of 48khz 13-bit a/d, 16 dio, with 2 channels of 12-bit d/a
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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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  • Page 1 ® 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 ®...
  • Page 5 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 documentation, even if advised of the possibility of such damages.
  • Page 6 ® UMDAS 0802DA CyberResearch Data Acquisition Intentionally Blank ©Copyright 2006 CyberResearch, Inc.

  • Page 7: Table Of Contents

    Chapter 1 Introducing the UMDAS 0802DA ... 1-1 UMDAS 0802DA block diagram... 1-2 Software features ... 1-2 Connecting a UMDAS 0802DA to your computer is easy... 1-3 Chapter 2 Installing the UMDAS 0802DA..2-1 What comes with your UMDAS 0802DA shipment? ... 2-1 Hardware ...
  • Page 8 Non-volatile memory... 4-5 Microcontroller... 4-5 Power... 4-5 General ... 4-6 Environmental ... 4-6 Mechanical ... 4-6 Main connector and pin out ... 4-6 4-channel differential mode ... 4-6 8-channel single-ended mode... 4-7 viii...

  • Page 9: 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.

  • Page 10: Introducing The Umdas 0802Da

    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.

  • Page 11: Umdas 0802Da Block Diagram

    Figure 1-2. UMDAS 0802DA functional block diagram Software features For information on the features of InstaCal and the other software included with your UMDAS 0802DA, refer to the Quick Start Guide that shipped in PDF format on the CD which accompanies your device.

  • Page 12: Connecting A Umdas 0802Da To Your Computer Is Easy

    HID because it is a standard, and its performance delivers full control and maximizes data transfer rates for your UMDAS 0802DA. No third-party device driver is required. The UMDAS 0802DA is plug-and-play. There are no jumpers to position, DIP switches to set, or interrupts to configure.

  • Page 13: Installing The Umdas 0802Da

    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 UMDAS 0802DA and information regarding installation of that software. Chapter 2...

  • Page 14: Unpacking The Umdas 0802Da

    To connect the UMDAS 0802DA to your system, turn your computer on, and connect the USB cable to a USB port on your computer or to an external USB hub that is connected to your computer. The USB cable provides power and communication to the UMDAS 0802DA.

  • Page 15: Calibrating The Umdas 0802Da

    UMDAS 0802DA and your computer. On most computers, you can install up to two UMDAS 0802DA units. If you need to connect more than two UMDAS 0802DAunits to your computer, contact Tech Support by phone (203-483-9966), fax (203-483-9024), or email (techsupport@cyberresearch.com).

  • Page 16: Functional Details

    FIFO buffer until you stop the scan. The FIFO buffer is serviced in blocks as the data is transferred from the UMDAS 0802DA to the memory buffer on your computer.

  • Page 17: Usb Connector

    5 V. No external power supply is required. The LED on the front of the housing indicates the communication status of the UMDAS 0802DA. It uses up to 5 mA of current and cannot be disabled. Table 3-1 defines the function of the UMDAS 0802DA's LED.

  • Page 18: Main Connector And Pin Out

    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 One power connection ( PC+5 V Three ground connections ( Main connector and pin out Connector type Wire gauge range 8-channel single-ended mode pin out...

  • Page 19: Single-Ended Measurements Using Differential Channels

    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 using differential channels, connect the signal to "CHn IN HI" input, and ground the associated "CHn IN LO"...
  • Page 20 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.

  • Page 21: Analog Output Terminals (D/A Out 0 And D/A Out 1)

    Since the analog inputs are restricted to a −10 V to +20 V signal swing with respect to ground, all ranges except ±20V can realize a linear output for any differential signal with zero common mode voltage and full scale signal inputs.

  • Page 22: Power Terminals

    UMDAS 0802DA USB +5 V supply as follows: (UMDAS 0802DA @ 80 mA) + (16 DIO @ 2.5 mA ea) + (2 AO @ 15 mA ea ) = 150 mA For an application running on a PC or powered hub, the maximum available excess current is 500 mA −...

  • Page 23: +2.5Vref Terminal

    The primary error sources in the UMDAS 0802DA are offset and gain. Nonlinearity is small in the UMDAS 0802DA, and is not significant as an error source with respect to offset and gain. Figure 3-10 shows an example of an ideal, error-free, UMDAS 0802DA transfer function. The typical calibrated accuracy of the UMDAS 0802DA is range-dependent, as explained in the "Specifications"...
  • Page 24 The offset error is measured at mid-scale. Ideally, a zero volt input should produce an output code of 8192. Any deviation from this is an offset error. shows an example of a UMDAS 0802DA transfer function with a ±2.44 mV offset error. Offset error Figure 3-11 affects all codes equally by shifting the entire transfer function up or down along the input voltage axis.
  • Page 25 Figure 3-12. ADC Transfer function with gain error Figure 3-12 shows an example of a UMDAS 0802DA transfer function with a calibrated gain error of ±0.02%, or ±2 mV. This means that at full scale, neglecting the effect of offset for the moment, the measurement would be within 2 mV of the actual value.

  • Page 26: Umdas 0802Da Channel Gain Queue Feature

    In the Gated mode, it is assumed that the clock signal will be held off for an adequate amount of time for setup to occur. No clock pulses are ignored. Use Gated mode if you want to use the UMDAS 0802DA unit as a slave, and the source of the external clock is another USB unit.
  • Page 27 Master SYNC pin Slave UMDAS 0802DA pin 19 Figure 3-14. Configuring for synchronous data acquisition When you are operating one UMDAS 0802DA, do not set the clock for A/D pacing. drop-down list. option with cbAInScan()/AInScan For the slave UMDAS 0802DA,...

  • Page 28: Specifications

    Specifications Typical for 25°C unless otherwise specified. Specifications in italic text are guaranteed by design. Analog input Parameter A/D converter type Input voltage range for linear operation, single-ended mode Input common-mode voltage range for linear operation, differential mode Absolute maximum input voltage Input current (Note 1) Number of channels Input ranges, single-ended mode...
  • Page 29 The ADS7871 converter only returns 13-bits (0 to 8192 codes) in single-ended mode. Note 3: Extrapolating the long term drift accuracy specifications will provide the approximate long term Note 4: drift of the UMDAS 0802DA intermediate input ranges. Table 4-2. Accuracy, differential mode Range Absolute Accuracy 25°C (±mV) ±20 V...

  • Page 30: Analog Output

    Note 6: code region.. In this case, changes in digital input code at values less than 0x040 may not produce a corresponding change in the output voltage. The UMDAS 0802DA offset error is tested and specified at code 0x040. Digital input/output...

  • Page 31: External Trigger

    External trigger Parameter Conditions Trigger source (Note 7) External digital Trigger mode Software selectable Trigger latency Trigger pulse width Input high voltage Input low voltage Input leakage current TRIG_IN is a Schmitt trigger input protected with a 1.5 kilohm (kΩ) series resistor. Note 7: External clock input/output Parameter...

  • Page 32: Non-Volatile Memory

    +5V USB power available (Note 11) Output current (Note 12) This is the total current requirement for the UMDAS 0802DA which includes up to 10 mA for the Note 10: status LED. Self-powered hub refers to a USB hub with an external power supply. Self-powered hubs allow a Note 11: connected USB device to draw up to 500 mA.

  • Page 33: General

    General Parameter Device type Device compatibility Environmental Operating temperature range Storage temperature range Humidity Mechanical Dimensions USB cable length User connection length Main connector and pin out Connector type Wire gauge range 4-channel differential mode Signal Name CH0 IN HI CH0 IN LO AGND CH1 IN HI...

  • Page 34: 8-Channel Single-Ended Mode

    8-channel single-ended mode Signal Name CH0 IN CH1 IN AGND CH2 IN CH3 IN AGND CH4 IN CH5 IN AGND CH6 IN CH7 IN AGND D/A OUT 0 D/A OUT 1 AGND +2.5VREF TRIG IN SYNC Signal Name Port A0 Port A1 Port A2 Port A3...

  • Page 37: Product Service

    Signal connections and programming are the two most common sources of difficulty. CyberResearch support personnel can help you solve these problems, especially if you are prepared for the call.
  • Page 38 ® UMDAS 0802DA CyberResearch Data Acquisition Intentionally Blank ©Copyright 2006 CyberResearch, Inc.

  • Page 39: Warranty Notice

    CyberResearch, Inc. will, at its option, repair or replace the defective item under the terms of this warranty, subject to the provisions and specific exclusions listed herein.
  • Page 40 ® UMDAS 0802DA CyberResearch Data Acquisition Intentionally Blank ©Copyright 2006 CyberResearch, Inc.
  • Page 42 CyberResearch, Inc. 25 Business Park Drive Branford, CT 06405 USA P: (203) 483-8815; F: (203) 483-9024 www.cyberresearch.com...

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