Multifunction USB modules provide 4, 8, or 16 Analog Outputs and 2 Analog Inputs
The USB-AO Series provides 4, 8, or 16 single-ended analog outputs (digital-to-analog converters, i.e. DACs) with either 12- or 16-bit resolution. Additional features include two 16-bit analog inputs (analog-to-digital converters, i.e. ADCs) and 16 digital I/O lines—all packaged in a small, rugged, industrial enclosure. This module can be used in any PC or embedded system with a USB port and is an ideal choice for embedded system and test designers. The unit can be used in an assortment of USB-based embedded applications which require stable and accurate output signals. Ideal applications include light control, motion control, and process controls.

The boards feature jumper selectable unipolar and bipolar output ranges of ±5V or 0-10V ranges for the DACs. Additional ranges can be achieved as factory options giving the user a variety to select from. All analog output channels can be updated either individually or simultaneously at up to 4kHz. System calibration specific to user requirements can be performed via a provided, easy-to-use, software utility. Automatic circuits limit analog outputs to zero volts until initialized via software command.

16 digital I/O lines are provided in two groups of 8 bits. Both digital bytes are individually software configured as input or output. Each 8-bit digital I/O group also can be configured for either 5V CMOS or 3.3V LVTTL signaling via jumper selection.

The USB-AO Series 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 x 3.775 inches, 90mm x 96mm) and ships inside a steel powder-coated enclosure with an anti-skid bottom. A DIN rail mounting provision and extended temperature is available for installation in industrial environments.

All connections are made via industry-standard 37-pin D-Sub connectors.

The USB-AO Series includes 10 models with different output and input quantities, and resolutions.