The DNA-AO-318-024, DNR-AO-318-024 and DNF-AO-318-024 are fully isolated, high-precision, 8-channel analog current output board compatible with UEI’s popular “Cube”, RACKtangle and FLATRACK I/O chassis respectively. The boards offer full 16-bit resolution and guarantee monotonicity over the entire operating temperature range. Each DNxAO-318-024 channel provides an output range of 0-24 mA (sourcing) and is capable of up to 400 Ohms. For applications requiring a sinking output please refer to the DNx-AO-319-420. For applications requiring voltage outputs please refer to the DNx-AO-308 or DNx-AO-318 series boards.
The DNx-AO-318-024 provides extensive built-in-test diagnostics. An onboard A/D converter on each channel allows the user to monitor both output voltage and current. A solid state relay on each output allows theD/A channel to be disconnected from the field I/O so that a complete board self-test can be completed without driving the circuitry connected to the outputs. This relay in combination with the output current and voltage sensing can also be set to disconnect the D/A output in the event of an external fault condition such as a short to ground or a DC power supply.
All 8 channels may be configured to update simultaneously, or they maybe updated one at a time as data is written. A 1024 sample FIFO allows each D/A to be updated at 10 kHz without data loss. Double buffering the outputs combined with the use of low glitch D/As make the DNx-AO-318-024 an ideal solution for generating low frequency wave forms or providing highly accurate switched stimulus.
Software is included, providing a comprehensive, yet easy-to-use API that supports all popular operating systems, including Windows, Linux, and most real-time operating systems—such as QNX, Intime, VXworks, and more. Additionally, the UEIDAQ Framework—an even higher level Windows driver—supplies complete support for those creating applications in many popular Windows programming languages, as well as data acquisition software packages such as LabVIEW and MATLAB/Simulink, ActiveX or OPC servers.
