Analog I/O Boards Equipped With Feedback December 2004 Issue Published Date: January 06, 2005
Designed for automatic control applications, the PCIAO 04F8 and PCIAO 08F4 PCI analog output boards use feedback lines to ensure system stability. This eliminates the need for a separate ADC board and makes it easy to bring 14-bit feedback to the DAC board itself. The 04F8 has four d/a lines with eight a/d channels for feedback. The 08F4 has eight d/a lines and four a/d feedback channels. Both boards accept input data at 400 Ksamples/s and can output data at 1 Msample/s. These speeds are achieved with simultaneous inputs and outputs. To enhance accuracy, the boards self-calibrate on command, using an on-board ultra-stable reference or an external reference. Both input and output channels can be scanned in any order at the maximum data rates. Large FIFO buffers combine with scatter-gather bus mastering DMA for data storage. CYBERRESEARCH, INC., Branford, CT. (800) 341-2525.
