Contec ADI12-16(PCI), User Manual, Page: 8 / 95

1. Before Using the Product
ADI12-16(PCI)
1
1. Before Using the Product
About the Board
ADI12-16(PCI) is PCI-compliant interface boards that convert analog input signals to digital
equivalents (performing analog-to-digital conversion).
ADI12-16(PCI) can perform A-D conversion at a conversion speed of 20
µ
sec per channel and a
resolution of 12-bit.
Using the bundled driver library [API-PAC(W32)], you can create Windows application software for
this board in your favorite programming language supporting Win32 API functions, such as Visual
Basic or Visual C++.
Features
Bus-isolation by an optocoupler
PC and external I/O circuit is isolated from each other by an optocoupler, offering good noise immunity.
Sixteen single-ended channels and eight differential channels (Analog input function)
Either board allows the single-ended or differential input mode to be selected with on-board jumpers.
The order of channels subject to signal conversion can be preset in the dedicated register.
On-board buffer memory (Analog input function)
The board has buffer memory available as a FIFO or ring buffer to hold 256 kilobytes of data. This
enables sampling to be executed in the background independently of the processing power of the PC.
Assorted sampling control functions (Analog input function)
The board can control the starting and stopping of sampling not only with software commands but also
by detecting analog signal strength or digital signals. The board offers a choice of sampling clocks
selectable to determine the sampling speed: the internal sampling clock using the on-board clock
generator and the external sampling clock using the digital signal input from an external device.
Digital input/output function
The board has optocoupler isolation open-collector output (sink type) digital output 4 channels,
optocoupler isolation input (corresponding to sink output) digital input 4 channels and can monitor,
control the external device.
Software-based calibration function
Calibration of analog input can be all performed by software. Apart from the adjustment information
prepared before shipment, additional adjustment information can be stored according to the use
environment.
Abundant optional units
Optional units are available for enhancements.
Using optional units enhances board functions and facilitates connections.