Data acquisition (DAQ) is a process of sampling signals that measure real world physical conditions and converting the resulting samples into digital numeric values that can be manipulated by a host. The components of a typical DAQ system include: signal conditioning circuitry to convert sensor signals into a form that can be converted to digital values,  analog-to-digital converters, which convert conditioned sensor signals to digital values and a bus used to connect to a host system that in most cases is a personal computer.

An USB DAQ interface has been developed with 8-channel 16-bit differential analog input stage capable of sample rates up to 250 000 samples per second. The interface also includes a four channel D/A converter with 12 bit resolution suitable for generating DC bias voltages and slow AC signals. The interconnecting bus is USB 2.0 full-speed compliant. Input and output voltage range is 5 V or 10 V but can be further customized upon request.

Technical specifications (for 10 V version):