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Summary of Contents for Measurement Computing USB-1608GX-AO
- Page 1 USB-1608GX-2AO Multifunction DAQ Device User's Guide January 2019. Rev 2 © Measurement Computing...
- Page 2 Other product and company names mentioned herein are trademarks or trade names of their respective companies. © 2019 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.
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Page 3: Table Of Contents
Table of Contents Preface About this User's Guide ........................5 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-1608GX-2AO ...................... 6 Functional block diagram ........................... - Page 4 USB-1608GX-2AO User's Guide Counter ................................20 Timer ................................21 Memory ................................21 Power ................................21 USB .................................. 21 Environmental ..............................22 Mechanical ............................... 22 Screw terminal connector ..........................22 Differential mode pinout ..............................22 Single-ended mode pinout ...............................23 EU Declaration of Conformity ......................24...
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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-1608GX-2AO 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-1608Gx-2Ao
Chapter 1 Introducing the USB-1608GX-2AO The USB-1608G is a USB 2.0 high-speed device that provides the following features: 16 single-ended (SE) or eight differential (DIFF) analog input channels Two analog output channels Eight individually configurable digital I/O channels ... -
Page 7: Installing The Usb-1608Gx-2Ao
±10 °C from the last self-calibration. Factory calibration The Measurement Computing Manufacturing Test department performs the initial factory calibration. Contact Measurement Computing for details about how to return your device and have it calibrated to the factory specifications. Firmware updates Your DAQ device contains firmware that can be updated in the field if required. -
Page 8: Functional Details
Chapter 3 Functional Details Analog input modes The USB-1608GX-2AO device can acquire analog input data in two basic modes – software paced and hardware paced. Software paced You can acquire one analog sample at a time in software paced mode. You initiate the A/D conversion with a software command. -
Page 9: External Components
USB-1608GX-2AO User's Guide Functional Details External components The USB-1608GX-2AO has the following external components (see Figure 3): USB connector LEDs Screw terminals Screw terminal pins 1 to 27 Activity LED Screw terminal pins 28 to 54 USB connector Status LED Figure 3. - Page 10 USB-1608GX-2AO User's Guide Functional Details Figure 4. SE mode pinout Figure 5. DIFF mode pinout...
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Page 11: Signal Connections
USB-1608GX-2AO User's Guide Functional Details Signal connections Analog input You can configure the analog inputs for SE or DIFF mode. The input voltage range is software selectable for ±10 V, ±5 V, ±2 V, or ±1 V. With SE mode, connect up to 16 inputs to screw terminals . -
Page 12: Analog Output
USB-1608GX-2AO User's Guide Functional Details An example of a 4-element list is shown in the table below. Sample channel-gain queue list Element Channel Range Mode BIP5V BIP10V DIFF CH15 BIP1V BIP5V Carefully match the gain to the expected voltage range on the associated channel or an over range condition may occur. -
Page 13: Trigger Input
USB-1608GX-2AO User's Guide Functional Details Internal pull-up/down configuration Unconnected inputs are pulled low by default to 0 V through 47 kΩ resistors via jumper on the circuit board. The pull-up/pull-down voltage is common to all 47 kΩ resistors. Complete the following steps to configure these inputs to pull high (+5V). -
Page 14: Counter Input
USB-1608GX-2AO User's Guide Functional Details Counter input terminals are 32-bit event counters that can accept frequency inputs up to 20 MHz. The CTR0 CTR1 internal counter increments when the TTL levels transition from low to high. Timer output terminal is a pulse width modulation (PWM) timer output that can generate a pulse output with a programmable frequency in the range of 0.0149 Hz to 32 MHz. -
Page 15: Mechanical Drawings
USB-1608GX-2AO User's Guide Functional Details Mechanical drawings Figure 11. USB-1608GX-2AO circuit board (top) and enclosure dimensions... -
Page 16: Specifications
Chapter 4 Specifications All specifications are subject to change without notice. Typical for 25 °C unless otherwise specified. Specifications in italic text are guaranteed by design. Analog input Table 1. General analog input specifications Parameter Condition Specification A/D converter type Successive approximation ADC resolution 16 bits... -
Page 17: Accuracy
USB-1608GX-2AO User's Guide Specifications Accuracy Analog input DC voltage measurement accuracy Table 2. DC accuracy components and specifications. All values are (±) Absolute Gain Offset accuracy at temperature temperature Gain error Offset error INL error Full Scale coefficient coefficient Range (% of reading) (µV) (% of range) -
Page 18: Analog Output
USB-1608GX-2AO User's Guide Specifications Analog output Table 5. Analog output specifications Parameter Condition Specification Number of channels Resolution 16 bits Output ranges Calibrated ±10 V Output transient Host computer is reset, powered on, suspended, Duration: 500 µs or a reset command is issued to the device Amplitude: 2 V p-p Powered off Duration: 10 ms... -
Page 19: Analog Input/Output Calibration
USB-1608GX-2AO User's Guide Specifications Analog input/output calibration Table 9. Analog I/O calibration specifications Parameter Specification Recommended warm-up time 15 minutes min Calibration method Self-calibration (firmware) Calibration interval 1 year (factory calibration) AI calibration reference +5 V, ±2.5 mV max. Actual measured values stored in EEPROM. Tempco: 5 ppm/°C max Long term stability: 15 ppm/1000 hours AO calibration procedure... -
Page 20: External Clock Input/Output
USB-1608GX-2AO User's Guide Specifications External clock input/output Table 12. External clock I/O specifications Parameter Specification Terminal names AICKI, AICKO AOCKI, AOCKO Terminal types AxCKI: Input, active on rising edge AxCKO: Output, power on default is 0 V, active on rising edge Terminal descriptions AxCKI: Receives sampling clock from external source AxCKO: Outputs the internal D/A or A/D sampling clock, or the pulse generated from... -
Page 21: Timer
USB-1608GX-2AO User's Guide Specifications Timer Table 14. Timer specifications Parameter Specification Terminal name Timer type PWM output with count, period, delay, and pulse width registers Output value Default state is idle low with pulses high, software-selectable output invert Internal clock frequency 64 MHz Register widths 32-bit... -
Page 22: Environmental
USB-1608GX-2AO User's Guide Specifications Environmental Table 18. Environmental specifications Parameter Specification Operating temperature range 0 °C to 55 °C max Storage temperature range –40 °C to 85 °C max Humidity 0% to 90% non-condensing max Mechanical Table 19. Mechanical specifications Parameter Specification Dimensions (L ×... -
Page 23: Single-Ended Mode Pinout
USB-1608GX-2AO User's Guide Specifications Single-ended mode pinout Table 22. 16-channel single-ended mode pinout Signal name Pin description Signal name Pin description AI channel 0 CH15 AI channel 15 AI channel 8 AI channel 7 AGND Analog ground AGND Analog ground AI channel 1 CH14 AI channel 14... -
Page 24: Eu Declaration Of Conformity
July 21, 2016, Norton, Massachusetts USA Test Report Number: EMI5736.10 Measurement Computing Corporation declares under sole responsibility that the product USB-1608GX-2AO is in conformity with the relevant Union Harmonization Legislation and complies with the essential requirements of the following applicable European Directives:... - Page 25 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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