National Instruments 4-Channel 用户手册

Conversion time

Channel 0 only.................................4.4

μs

Channels 0 and 1 .............................6

μs

Channels 0, 1, and 2 ........................8

μs

Channels 0, 1, 2, and 3 ....................10

μs

Accuracy

Stability

Offset drift .......................................60

μV/°C

Gain drift .........................................10 ppm/°C

CMRR (at 60 Hz) ...................................–73 dB min

Input bandwidth (–3 dB).........................420 kHz min

Input impedance

Resistance

With screw terminal .................1 G

Ω

With BNC (between any
two AI– terminals) ...................200 k

Ω

Capacitance......................................25 pF

Input bias current ....................................10 nA

Input noise

RMS.................................................1.2 LSB

rms

Peak-to-peak ....................................7 LSB

Crosstalk .................................................–80 dB

Calibrated max (0 to 60 °C)

0.2%

0.082%

Calibrated typ (25 °C, ±5 °C)

0.02%

0.014%

Uncalibrated max (0 to 60 °C)

1.05%

0.82%

Uncalibrated typ (25 °C, ±5 °C)

0.6%

0.38%

*

 Range equals 10.4 V.