Available from Symmetric Research
The USB4CH is a 4 channel 24 bit realtime continuous data acquisition system with an individual A/D per channel architecture. The system is suitable for sampling from DC to 10kHz, connecting to the computer via a standard USB port. All analog inputs are fully differential with amplitude ranges of +/- 4 volts. There are also 4 digital inputs synchronously recorded along with the 24 bit analog inputs. An easy to use GPS interface is provided for time stamping data with 800ns absolute accuracy. Power consumption is 100 milliamps at 9 volts. Application software with source is also included for free.