National Instruments AT-MIO-16X User Manual

Page 225

Appendix A

Specifications

AT-MIO-16X User Manual

A-2

Input impedance ................................. 100 G

Ω

in parallel with 100 pF

Gains .................................................. 1, 2, 5, 10, 20, 50, and 100,

software-selectable

Pregain offset error

After calibration .......................... ±3

V maximum

Before calibration ........................ ±2.2 mV maximum

Temperature coefficient............... ±5

V/° C

Postgain offset error

After calibration .......................... ±381

V maximum

Before calibration ........................ ±102 mV maximum

Temperature coefficient............... ±120

V/° C

Gain error (relative to reference)

After calibration .......................... ±0.00366% (36.6 ppm)

maximum

Before calibration (any gain) ....... ±0.215% (2,150 ppm) maximum

Gain

≠

1....................................... ±0.02% (200 ppm) maximum,

with gain error adjusted to 0 at
gain = 1

Temperature coefficient
(any gain) .................................... ±8 ppm/° C

System noise (including quantization noise)

Bipolar (±10 V range) ................. 0.6 LSB rms for gain 1 to 10

0.7 LSB rms for gain 20
1.1 LSB rms for gain 50
2.0 LSB rms for gain 100

Unipolar (0 to 10 V range)........... 0.8 LSB rms for gains 1 to 10

1.1 LSB rms for gain 20
2.0 LSB rms for gain 50
3.8 LSB rms for gain 100

Crosstalk (other than from settling) .... –70 dB (DC to 100 kHz)

Onboard reference .............................. 5.000 V (±2 mV)

Temperature coefficient............... 2 ppm/° C maximum

(10

V/ ° C maximum)