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Related Manuals for Measurement Computing USB-1208HS-4AO
Summary of Contents for Measurement Computing USB-1208HS-4AO
- Page 2 USB-1208HS-4AO USB-based High-Speed Analog and Digital I/O Module User's Guide Document Revision 2, September, 2009 © Copyright 2009, Measurement Computing Corporation...
- Page 3 Measurement Computing. Thank you for choosing a Measurement Computing product—and congratulations! You own the finest, and you can now enjoy the protection of the most comprehensive warranties and unmatched phone tech support. It’s the embodiment of our mission: ...
- Page 4 Introducing the USB-1208HS-4AO ...................... 7 Software features ..............................8 Chapter 2 Installing the USB-1208HS-4AO ......................9 What comes with your USB-1208HS-4AO shipment? ..................9 Hardware ..................................9 Additional documentation ..............................9 Unpacking the USB-1208HS-4AO ........................9 Installing the software ............................10 Installing the hardware .............................
- Page 5 USB-1208HS-4AO User's Guide Timer ................................23 Memory ................................23 USB specifications ............................24 Environmental ..............................24 Main connector and pin out ..........................24...
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Page 6: About This User's Guide
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 USB-1208HS-4AO so that you get the most out of its USB data acquisition features. This user's guide also refers you to related documents available on our web site, and to technical support resources. -
Page 7: Introducing The Usb-1208Hs-4Ao
A digital trigger lets you start analog input and / or analog output scans. The USB-1208HS-4AO also has 16 digital I/O connections. The port has 47 kΩ resistors that you can configure for pull-up/pull-down using a jumper inside the case. The default configuration is pull-down. -
Page 8: Software Features
Figure 1. USB-1208HS-4AO functional block diagram Software features For information on the features of InstaCal and the other software included with your USB-1208HS-4AO, refer to the Quick Start Guide that shipped with your device. The Quick Start Guide is also available in PDF at www.mccdaq.com/PDFmanuals/DAQ-Software-Quick-Start.pdf. -
Page 9: Installing The Usb-1208Hs-4Ao
As with any electronic device, you should take care while handling to avoid damage from static electricity. Before removing the USB-1208HS-4AO 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. -
Page 10: Installing The Software
Connecting the USB-1208HS-4AO to your system To connect the USB-1208HS-4AO 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 connected to your computer. The USB cable provides power and communication to the USB-1208HS-4AO. -
Page 11: Functional Details
FIFO buffer on the USB-1208HS-4AO until you stop the scan. The FIFO buffer is serviced in blocks as the data is transferred from the USB-1208HS-4AO FIFO buffer to the memory buffer on your computer. -
Page 12: Usb Connector
Activity LED The Activity LED indicates the communication status of the USB-1208HS-4AO. It flashes when data is transferred, and is off when the USB-1208HS-4AO is not communicating. This LED uses up to 10 mA of current and cannot be disabled. -
Page 13: Analog Input Terminals
In differential mode, the input voltage ranges are ±20 V, ±10 V, and ±5 V. The voltage level on each AINx input is limited to ±14 V The following image depicts a voltage source connected to a USB-1208HS-4AO configured for single-ended mode. -
Page 14: Analog Output Terminals
Each channel can be software-paced at rates up to 5,000 updates per second (system-dependent), or hardware- paced at rates up to 1 MS/s. Each analog output on the USB-1208HS-4AO has a fixed ±10 V output range. The outputs default to 0 V at power up. -
Page 15: Internal Pull-Up/Pull-Down Capability
Each of the 16 DIO bits on the USB-1208HS-4AO has a 47 kΩ pull-up/pull-down resistor. To configure these bits for either a +5 V pull-up or a 0 V pull-down option, you must open the USB-1208HS-4AO case to access the three-pin jumper labeled W34. - Page 16 USB-1208HS-4AO User's Guide Functional Details Figure 8. Location of screws connecting bottom and top sections of case 4. Holding both the top and bottom sections of the module, turn it back over, rest it on the surface, and carefully remove the top section of the case.
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Page 17: Counter I/O Terminals
The timer can generate a pulse output with a programmable frequency range of 0.00931 Hz up to 20 MHz. Both the period and time delay ranges are 50 ns to 107.4 seconds. Figure 11. USB-1208HS-4AO PWM timer channel Trigger input terminal TRIG connection is an external digital trigger input. -
Page 18: Power Terminals
285 mA. Refer to the pinout diagram on page 12 for the location of this pin. Caution! The terminals are outputs. Do not connect to an external power supply or you may damage the USB-1208HS-4AO and possibly the computer. Analog ground terminals The 10 analog ground ( ) connections provide a common ground for all analog I/O channels. -
Page 19: 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. Analog input specifications Parameter Conditions Specification A/D converter Analog Devices AD7329 - 13-bit successive approximation type ... -
Page 20: Analog Output
±3.29 typical, ±5.13 maximum Table 3 summarizes the noise performance for the USB-1208HS-4AO. Noise distribution is determined by gathering 50 kS with inputs tied to ground at the user connector. Samples are gathered at the maximum specified sampling rate of 1 MS/s. -
Page 21: External Trigger
USB-1208HS-4AO User's Guide Specifications Output coupling Power up and reset state Output noise 0.53 mV rms Settling time (to 0.05%) 20 V output step, (R =5 kΩ, C =200 pf) 5 µS maximum. Absolute accuracy ±0.1% Slew rate 6.7 V/µs typical Offset error drift 10 ppm/°C typical... -
Page 22: External Clock Input/Output
USB-1208HS-4AO User's Guide Specifications External clock input/output Table 8. 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... -
Page 23: Timer
On USB supply Fuses 0452.750 - Littelfuse 0.750A NANO2® Slo-Blo® Subminiature Surface Mount Fuse. Spare fuse mounted in holder on PCB. This is the total current consumption for the USB-1208HS-4AO including +5 V, digital output and Note 1: analog output currents. -
Page 24: Usb Specifications
USB-1208HS-4AO User's Guide Specifications Note 2: Output voltage range assumes input power is within specified limits. USB specifications Table 13. USB specifications USB device type USB 2.0 (high-speed) USB device compatibility USB 1.1, 2.0 USB cable length 5 meters maximum. - Page 25 USB-1208HS-4AO User's Guide Specifications Table 17. Main connector single-ended pin out Signal name Signal name AIN0 AOUT0 AGND AOUT1 AIN1 AGND AGND AOUT2 AIN2 AOUT3 AGND AGND AIN3 AICKI AGND AICKO AIN4 AOCKI AGND AOCKO AIN5 TRIG AGND AIN6 CTR0...
- Page 26 Measurement Computing Corporation 10 Commerce Way Suite 1008 Norton, Massachusetts 02766 (508) 946-5100 Fax: (508) 946-9500 E-mail: info@mccdaq.com www.mccdaq.com...
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