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Measurement Computing USB-3102 User Manual

Usb-based analog output
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USB-3102
USB-based Analog Output
November 2017. Rev. 5
© Measurement Computing Corporation
User's Guide

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Summary of Contents for Measurement Computing USB-3102

  • Page 1 USB-3102 USB-based Analog Output User's Guide November 2017. Rev. 5 © Measurement Computing Corporation...
  • Page 2 Other product and company names mentioned herein are trademarks or trade names of their respective companies. © 2017 Measurement Computing Corporation. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form by any means, electronic, mechanical, by photocopying, recording, or otherwise without the prior written permission of Measurement Computing Corporation.

  • Page 3: Table Of Contents

    What you will learn from this user's guide ......................5 Conventions in this user's guide ......................... 5 Where to find more information ......................... 5 Chapter 1 Introducing the USB-3102 ........................6 Overview: USB-3102 features ..........................6 USB-3102 block diagram ........................... 7 Chapter 2 Installing the USB-3102 ........................
  • Page 4 USB-3102 User's Guide About this User's Guide Screw terminal connector ..........................20 EU Declaration of Conformity ......................21...

  • Page 5: Preface

    Preface About this User's Guide What you will learn from this user's guide This user's guide describes the Measurement Computing USB-3102 data acquisition device and lists device specifications. Conventions in this user's guide For more information Text presented in a box signifies additional information and helpful hints related to the subject matter you are reading.

  • Page 6: Introducing The Usb-3102

    Overview: USB-3102 features This user's guide contains all of the information you need to connect the USB-3102 to your computer and to the signals you want to control. The USB-3102 is part of the Measurement Computing brand of USB-based data acquisition products.

  • Page 7: Usb-3102 Block Diagram

    USB-3102 User's Guide Introducing the USB-3102 USB-3102 block diagram USB-3102 functions are illustrated in the block diagram shown here. Analog Voltage Output Full-speed 4 channels (16-bit) USB 2.0 4-channel Compliant Quad Interface 8 channels Analog Current Microcontroller Output 4 channels (16-bit)

  • Page 8: Installing The Usb-3102

    Installing the hardware To connect the USB-3102 to your system, connect the USB cable to an available USB port on the computer or to an external USB hub connected to the computer. Connect the other end of the USB cable to the USB connector on the device.

  • Page 9: Functional Details

    Status LED The Status LED indicates the communication status of the USB-3102. It flashes when data is being transferred, and is off when the USB-3102 is not communicating. This LED uses up to 10 mA of current and cannot be disabled.

  • Page 10: Screw Terminal Banks

    Screw terminal banks The USB-3102 has two rows of screw terminals—one row on the top edge of the housing, and one row on the bottom edge. Each row has 28 connections. Use 16 AWG to 30 AWG wire gauge when making screw terminal connections.

  • Page 11: Analog Voltage Output Terminals (Vout0 To Vout3)

    DIO5 54 DIO CTL DIO6 55 DGND DIO7 56 +5V Figure 5. USB-3102 signal pinout Analog voltage output terminals (VOUT0 to VOUT3) The screw terminal pins labeled are voltage output terminals (see Figure 5). The voltage VOUT0 VOUT3 output range for each channel is software-programmable for either bipolar or unipolar. The bipolar range is ±10 V, and the unipolar range is 0 to 10 V.

  • Page 12: Current Test Terminal (Itest)

    USB-3102 User's Guide Functional Details Floating Supply Floating Ext. IOUTn+1 Supply Floating Load IOUTn+2 IOUTn+2 IOUTn+2 IOUTn+2 Floating Supply Floating Ext. IOUTn+1 Supply Floating Load IOUTn+1 IOUTn+1 IOUTn+1 IOUTn+1 Floating Supply Floating Ext. IOUTn+1 Supply Floating Load IOUTn IOUTn IOUTn...

  • Page 13: Digital I/O Terminals (Dio0 To Dio7)

    USB-3102 User's Guide Functional Details Digital I/O terminals (DIO0 to DIO7) You can connect up to eight digital I/O lines to the screw terminals labeled (pins 21 through 28). DIO0 DIO7 You can configure each digital bit for either input or output.

  • Page 14: Counter Terminal (Ctr)

    Configure as an output (master mode) to send the internal D/A LOAD signal to the SYNCLD pin.  You can use the SYNCLD pin to synchronize with a second USB-3102 and simultaneously update the DAC outputs on each device. Refer to Synchronizing multiple units below.

  • Page 15: Specifications

    Note 2: The USB-3102 output voltage level defaults to 0V whenever the output voltage range is reconfigured. The USB-3102 output voltage level will also default to 0V: 1) Whenever the host PC is reset, shut down or suspended.

  • Page 16: Analog Current Output

    The maximum differential non-linearity specification applies to the entire 0 to 50 °C temperature range of the USB-3102. This specification also accounts for the maximum errors due to the software calibration algorithm (in Calibrated mode only) and the DAC8554 digital to analog converter non-linearities.

  • Page 17: Analog Output Calibration

    The maximum differential non-linearity specification applies to the entire 0 to 70 °C temperature range of the USB-3102. This specification also accounts for the maximum errors due to the software calibration algorithm (in Calibrated mode only) and the DAC8554 digital to analog converter non-linearities.

  • Page 18: Counter

    USB-3102 User's Guide Specifications Input leakage current ±1.0 µA typ Input high voltage 4.0 V min, 5.5 V absolute max Input low voltage 1.0 V max, –0.5 V absolute min Output high voltage (Note 9) IOH = –2.5 mA 3.3 V min No load 3.8 V min...

  • Page 19: Power

    30mA max Note 11: This is the total quiescent current requirement for the USB-3102 which includes up to 10 mA for the status LED. This does not include any potential loading of the digital I/O bits, +5V user terminal, ITEST, or the VOUTx/IOUTx outputs.
  • Page 20 USB-3102 User's Guide Specifications Screw terminal connector Table 16. Main connector specifications Parameter Specification Connector type Screw terminal Wire gauge range 16 AWG to 30 AWG Signal Name Signal Name VOUT0 VOUT1 IOUT0 IOUT1 VOUT2 VOUT3 IOUT2 IOUT3 AGND AGND...
  • Page 21 October 10, 2017, Norton, Massachusetts USA Test Report Number: EMI4712.07/EMI5193.08 Measurement Computing Corporation declares under sole responsibility that the product USB-3102 is in conformity with the relevant Union Harmonization Legislation and complies with the essential requirements of the following applicable European Directives:...
  • Page 22 Measurement Computing Corporation NI Hungary Kft 10 Commerce Way H-4031 Debrecen, Hátar út 1/A, Hungary Norton, Massachusetts 02766 Phone: +36 (52) 515400 (508) 946-5100 Fax: +36 (52) 515414 Fax: (508) 946-9500 http://hungary.ni.com/debrecen E-mail: info@mccdaq.com www.mccdaq.com...

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