National Instruments 3.21E+04 用户手册
Appendix A Specifications for AT-MIO-16XE-10 and AT-AI-16XE-10
AT-MIO/AI E Series User Manual
A-20
National Instruments Corporation
Configuration memory size ................512 words
Transfer Characteristics
Relative accuracy ...............................
±
0.75 LSB typ,
±
1 LSB max
DNL...................................................
±
0.5 LSB typ,
±
1 LSB max
No missing codes ...............................16 bits, guaranteed
Offset error
Pregain error after calibration .....
±
3
µ
V max
Pregain error before calibration ..
±
2.2 mV max
Postgain error after calibration ...
±
76
µ
V max
Postgain error before calibration.
±
102 mV max
Gain error (relative to calibration reference)
After calibration (gain = 1) .........
±
30.5 ppm of reading max
Before calibration .......................
±
2,150 ppm of reading max
With gain error adjusted to 0 at gain = 1
Gain
≠
1......................................
±
200 ppm of reading
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 ...............................
±
1 nA
Input offset current ............................
±
2 nA
CMRR, DC to 60 Hz
Gain = 1...................................... 92 dB
Gain = 2...................................... 97 dB
Gain = 5...................................... 101 dB
Gain = 10.................................... 104 dB
Gain = 20.................................... 105 dB
Gain = 50.................................... 105 dB
Gain = 100.................................. 105 dB