National Instruments 3.21E+04 用户手册
Appendix A Specifications for AT-MIO-16E-1, AT-MIO-16E-2 and AT-MIO-64E-3
National Instruments Corporation
A-3
AT-MIO/AI E Series User Manual
Transfer Characteristics
Relative accuracy .............................
±
0.5 LSB typ dithered,
±
1.5 LSB
max undithered
DNL ..................................................
±
0.5 LSB typ,
±
1.0 LSB max
No missing codes .............................. 12 bits, guaranteed
Offset error
Pregain error after calibration .....
±
12
µ
V max
Pregain error before calibration...
±
2.5 mV max
Postgain error after calibration ....
±
0.5 mV max
Postgain error before calibration .
±
100 mV max
Gain error (relative to calibration reference)
After calibration (gain = 1) .........
±
0.02% of reading max
Before calibration .......................
±
2.5% of reading max
Gain
≠
1 with gain error
adjusted to 0 at gain = 1 .......
±
0.02% of reading max
Amplifier Characteristics
Input impedance
Normal powered on..................... 100 G
Ω
in parallel with 100 pF
Powered off ................................ 820
Ω
min
Overload ..................................... 820
Ω
min
Input bias current ..............................
±
200 pA
Input offset current ............................
±
100 pA
CMRR, DC to 60 Hz
Gain = 0.5 ................................... 95 dB
Gain = 1 ...................................... 100 dB
Gain
≥
2 ...................................... 106 dB