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National Instruments Corporation
9
NI USB-9263 User Guide and Specifications
Specifications
The following specifications are typical for the range 0 to 60 °C, unless
otherwise noted. All voltages are relative to COM unless otherwise noted.
Output Characteristics
Number of channels ............................... 4 analog output channels
DAC resolution ...................................... 16 bits
Type of DAC.......................................... String
Startup voltage ....................................... 0 V
1
Power-down voltage .............................. 0 V
2
Output range........................................... ±10 V
Operating voltage
Nominal .......................................... ±10.7 V
Minimum ........................................ ±10.4 V
Maximum........................................ ±11 V
Current drive .......................................... ±1 mA per channel max
Output impedance .................................. 2
Ω
Accuracy
Stability
Gain drift......................................... 14 ppm/°C
Offset drift....................................... 110
μ
V/°C
1
When the device powers on, a glitch occurs for 20
μ
s peaking at –1.5 V.
2
The power-down voltage peaks at 1.8 V before exponentially dishcarging to 0 V in 100
μ
s. You can add a 10 k
Ω
to reduce the
peak voltage.
Error
Percentage
of Reading
Percent of
Range*
Calibrated, max (–40 to 70 °C)
0.35%
0.75%
Calibrated, typ (25 °C, ±5 °C)
0.03%
0.1%
Uncalibrated, max (–40 to 70 °C)
2.2%
1.7%
Uncalibrated, typ (25 °C, ±5 °C)
0.3%
0.25%
* Range equals ±10.7 V
