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Transfer characteristics, Amplifier characteristics – National Instruments AT E Series User Manual

Page 108

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Appendix A

Specifications for AT-MIO-16E-1, AT-MIO-16E-2, and AT-MIO-64E-3

© National Instruments Corporation

A-3

AT 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 µV 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

Range

CMRR

20 V

95 dB

10 V

100 dB

100 mV to 5 V

106 dB