I'm using LabVIEW SignalExpress to
acquire voltage signal from a USB 6259 AD convertor in my experiment. I have a question on voltage input range setup. According to the manual, this products have these voltage input range, ±10 V, ±5V, ±2 V, ±1 V, ±500 mV, ±200 mV, ±100 mV. I know that a smaller input range improves the voltage resolution. My question is, if my prediction of my signal is in the range of 0~1V, can I set the voltage input range, for example, as 0~1V, to narrow the range and maximize the resolution?
If you specify 0V - 1V as your input range, the driver will automatically set the card to the ±1V range, as that is the smallest range that completely encompasses your requested range. The hardware can only use the ranges specified in the manual, so you won't be able to set the hardware to 0V - 1V.
Seth B. Principal Test Engineer | National Instruments Certified LabVIEW Architect Certified TestStand Architect
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