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© National Instruments Corporation 19 NI USB-9237 User Guide and Specifications
Crosstalk
1 kHz............................................... 110 dB
10 kHz............................................. 100 dB
Shunt calibration
Resistance ....................................... 100 kΩ
Resistor accuracy
25 °C ........................................ ± 110 Ω
0 to 60 °C................................. ± 200 Ω
Excitation
Internal voltage ............................... 2.5 V, 3.3 V, 5.0 V, 10.0 V
Internal power ................................. 150 mW max
External voltage .............................. 2 V to 10 V
Power Requirements
Current consumption from USB ............ 500 mA, max
Suspend mode ................................. 2.5 mA, max
Bus Interface
USB specification................................... USB 2.0 Hi-Speed
Physical Characteristics
Dimensions............................................. 12.1 cm × 8.6 cm × 2.5 cm
(4.75 in. × 3.37 in. × 0.99 in.)
Weight.................................................... Approx. 250 g (8.8 oz)
Safety
If you need to clean the module, wipe it with a dry towel.
Safety Voltages
Connect only voltages that are within these limits.
Between any two terminals .................... ± 30 V max