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ACCES I/O Products, Inc. 

MADE IN THE USA 

USB-AI16-2A

 

manual revision A1d

 

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Q

UICK START

 

It is recommended that you install the software package before 
connecting the USB module to your computer.  You can install the 
software

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 using either a stand-alone installer downloaded from the 

website or an optional Software Master CD. 

Run the installer you downloaded (or autorun.exe on the Software 
Master CD) and follow the prompts to install the software for your 
device.   

Once the software has been installed: If your device is configured 
to use external power, connect the voltage source to the device, 
then turn on the power. Plug the USB cable into both the USB 
module and your system.  

As soon as the green Power/Activity LED lights, your new analog 
input module is ready to use; you can run any of the provided 
sample programs to begin acquiring analog input data or 
controlling and monitoring the digital I/O lines. 

If, for any reason, the Power/Activity LED does not light, launch 
Device Manager and look under the “Data Acquisition” section.  If 
the USB device displays a warning triangle, right-click and select 
“Update Driver”. 

Please note: during the installation you may be prompted regarding 
the installation of non-WHQL-certified drivers; please carefully 
confirm the digitally signed source of the drivers and accept the 
installation.   

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 In Linux or OSX please refer to the instructions in those directories. 

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I

NTRODUCTION

 

USB, the world’s most popular peripheral interconnect bus, 
provides an easy way to add capabilities of all kinds to your system.  
Although originally intended for Human Interface Devices like mice 
and keyboards, advances to the specification enabled reliable and 
high speed connectivity for everything from audio devices to frame 
grabbers.   

FEATURES 

 

High-speed USB 2.0 device (USB 3.0+ compatible), 
w/High-retention USB connector 

 

Two 1MHz 16-bit A/D converters for 2MHz aggregate 
sampling rate 

 

Analog and digital inputs acquired simultaneously and 
time-stamped 

 

4k sample FIFO (shared by all inputs) 

 

Per channel software selectable ranges of 0-1V, 0-2V, 0-
5V, 0-10V, ±1V, ±2V, ±5V, ±10V 

 

Eight digital I/O’s (four inputs & four high-current outputs) 

 

All 8 DIO lines buffered with Sink 32mA / Source 32mA 
current capabilities 

 

Jumper selectable 10k ohm Pull-up/Pull-down resistors on 
DIO lines  

 

Standard 16-pin IDC connector for Digital I/O lines 

 

BNC connectors for Analog Inputs 

 

PC/104 module size and mounting compatibility 

 

Alternate USB micro-fit header can be used to reduce 
board footprint in embedded applications 

 

Small rugged steel industrial enclosure 

The USB-AI16-2A is a high-speed USB 2.0 device designed for many 
applications including laboratory and semiconductor fab signal 
analysis. This product is a USB-based Analog to Digital (A/D) 
converter board that features two single-ended 16-bit analog 
inputs with software selectable input ranges, per channel. The 
board samples each A/D at 1MHz, simultaneously, for an aggregate 
speed of 2MHz. 

Also provided are four general purpose digital inputs and four high-
current digital outputs.  The inputs and outputs are jumper 
configured for 10k ohm pull-up or pull-down resistors (inputs and 
outputs are separately configured).  

The A/D conversion process is initialized by software control and 
can be started either by software command or digital input trigger 
via the right angle I/O header connector. Two status signals are 
provided at the I/O header; one indicates conversions are enabled; 
the other indicates the board's FIFO is almost full. Each sample 
acquired includes both of the analog input channels and the four 
digital inputs simultaneously. All data acquired by the board is time 
stamped with microsecond resolution.   

All required power is normally supplied to the board via the USB 
cable, however for higher current sourcing capabilities, optional 
external power may be used.  The I/O wiring connections for the 
digital I/O lines on the USB-AI16-2A are via a 16-position industry 
standard IDC connector.   

The USB-AI16-2A is designed to be used in rugged industrial 
environments but is small enough to fit nicely onto any desk or 
testing station. The board itself is PC/104 sized (3.550 by 3.775 
inches) and ships inside a steel powder-coated enclosure with an 
anti-skid bottom. 

Содержание USB-AI16-2A

Страница 1: ...www acces io 10623 Roselle Street 800 326 1649 http acces io USB AI16 2A San Diego CA 92121 1506 USA contactus accesio com MADE IN THE USA DUAL CHANNEL 16 BIT 1 MHZ SIMULTANEOUS ANALOG DIGITAL INPUT BOARD HARDWARE MANUAL MODEL USB AI16 2A ...

Страница 2: ...puts Per channel software selectable ranges of 0 1V 0 2V 0 5V 0 10V 1V 2V 5V 10V Eight digital I O s four inputs four high current outputs All 8 DIO lines buffered with Sink 32mA Source 32mA current capabilities Jumper selectable 10k ohm Pull up Pull down resistors on DIO lines Standard 16 pin IDC connector for Digital I O lines BNC connectors for Analog Inputs PC 104 module size and mounting comp...

Страница 3: ...ay be available to best fit your specific application requirements CHAPTER 4 CONFIGURATION SETTINGS This product has several physical settings you should configure before connecting it to the computer You can run the provided Windows Settings Program for a visual walk through while configuring the settings or refer to the image above and instructions below You will need a Philips screw driver to o...

Страница 4: ...ured for pull downs so external devices don t activate while the computer is booting All pull up pull down resistors for the Digital Inputs and Outputs are 10kΩ The GATE signal input is pulled up active high and allows conversions to occur following software command Grounding this input will disable A D conversions The FIFO FULL signal is active low indicating the data FIFO is almost full The RUNN...

Страница 5: ...ry pass data as pointer to Acquire function s then data n ADCH0 would refer to the nth conversion of CH0 data n ADCH1 refers to the nth conversion of CH1 data n dits status is the status indicator bit data n dits digital is the four digital input bits data n dits Timestamp holds the 27 bit µsecond timestamp Our drivers and DLLs usually shield you from needing to know these details but for advanced...

Страница 6: ...l Outputs High output Voltage Low output Voltage Sink Current Source Current 5V Logic 3 8V 0 55V 32mA 32mA High output Voltage Low output Voltage Sink Current Source Current 3 3V Logic 2 4V 0 55V 24mA 24mA Digital Inputs High input Voltage Low input Voltage 5V Logic 3 5V 2uA 1 5V 2uA High input Voltage Low input Voltage 3 3V Logic 2V 2uA 0 8V 2uA Environmental Operating temperature Commercial Stan...

Страница 7: ...omestic site freight prepaid and invoiced COVERAGE FIRST THREE YEARS Returned unit part will be repaired and or replaced at ACCES option with no charge for labor or parts not excluded by warranty Warranty commences with equipment shipment FOLLOWING YEARS Throughout your equipment s lifetime ACCES stands ready to provide on site or in plant service at reasonable rates similar to those of other manu...

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