National Instruments 4-Channel 用户手册
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19
NI USB-9215 Series User Guide and Specifications
Settling time (to 2 LSBs)
With screw terminal
10 V step .................................. 10
μs
20 V step .................................. 15
μs
With BNC
10 V step .................................. 25
μs
20 V step .................................. 35
μs
No missing codes ................................... 15 bits guaranteed
DNL ....................................................... –1.9 to 2 LSB max
INL ......................................................... ±6 LSB max
Power Requirements
Power consumption from USB .............. 500 mA, max
Suspend mode ................................. 2.5 mA, max
Bus Interface
USB specifications
NI USB-9215 .................................. USB 2.0 Full-Speed
NI USB-9215A ............................... USB 2.0 Hi-Speed
NI USB-9215A BNC ...................... USB 2.0 Hi-Speed
Physical Characteristics
Dimensions
With combicon................................ 14.0 cm
× 8.8 cm × 2.5 cm
(5.52 in.
× 3.47 in. × 1.00 in.)
With BNC ....................................... 14.2 cm
× 8.8 cm × 2.5 cm
(5.54 in.
× 3.47 in. × 1.00 in.)
Screw terminal wiring ............................ 12 to 24 AWG copper conductor
wire with 10 mm (0.39 in.) of
insulation stripped from the end
insulation stripped from the end
Torque for screw terminals .................... 0.5–0.6 N · m (4.4–5.3 lb · in.)
Weight
With screw terminal........................ Approx. 250 g (8.8 oz)
With BNC ....................................... Approx. 275 g (9.6 oz)