14 | ni.com | NI myRIO-1950 User Guide and Specifications
Understanding Ground Connections
The USB connector shields and the mounting holes are connected together internally to form
chassis ground. Chassis ground is shorted to digital ground near the USB Host connector.
When connecting the NI myRIO-1950 to external devices, ensure that stray ground currents do
not use the NI myRIO-1950 as a return path. Significant stray currents can cause device failure.
After final assembly of your system, use a current probe to compare the current flowing out of
the power connector with the current flowing into the power connector. Investigate and remove
any current differences.
Specifications
The following specifications are typical for the 0 to 50 °C operating temperature range unless
otherwise noted.
Processor
Processor type ...................................................Xilinx Z-7010
Processor speed.................................................667 MHz
Processor cores .................................................2
Memory
Nonvolatile memory .........................................512 MB
DDR3 memory..................................................256 MB
DDR3 clock frequency .............................533 MHz
DDR3 data bus width................................16 bits
For information about the lifespan of the nonvolatile memory and about best practices for using
nonvolatile memory, go to
ni.com/info and enter the Info Code SSDBP.
FPGA
FPGA type ........................................................Xilinx Z-7010
USB Ports
USB host port....................................................USB 2.0 Hi-Speed
USB device port................................................USB 2.0 Hi-Speed
Analog Input
Aggregate sample rate ......................................500 kS/s
Resolution .........................................................12 bits
Overvoltage protection .....................................±16 V
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