National Instruments AT E Series - page 34

Chapter3 HardwareOverview
ATE Series User Manual 3-8 ni.com
AT-MIO-16E-10,and AT-MIO-16DE-10have gains of 0.5, 1, 2, 5, 10, 20,
50, and 100 and are suited for a wide variety of signal levels.With the
propergain setting, youcan use the full resolutionof theADC t o measure
the input signal. Table3-2 shows the overall input range and precision
according to the input range configurationand gain used.
♦AT-MIO-16XE-10,AT-AI-16XE-10,AT-MIO-16XE-50
Thesed eviceshave two input polarities—unipolar and bipolar. Unipolar
input means that the input voltage range is between 0 and Vref, where Vref
is a positivereference voltage. Bipolar input means that the input voltage
rangeis between –Vref and +Vref. The AT-MIO-16XE-10, AT-AI-16XE-10,
andAT-MIO-16XE-50 have a unipolar input range of 10 V (0 to 10 V) and
abipolar input range of 20 V (±10V). You can program polarity and range
settingson a per channel basis so that you can configure each input channel
uniquely.
Table3-2. Actual Range and Measurement Precision
Range
Configuration Gain ActualInput Range Precision1
0to+10V 1.0
2.0
5.0
10.0
20.0
50.0
100.0
0to+10V
0to+5V
0to+2V
0to+1V
0to+500mV
0to+200mV
0to+100mV
2.44 mV
1.22 mV
488.28 µV
244.14 µV
122.07 µV
48.83 µV
24.41 µV
–5to +5 V 0.5
1.0
2.0
5.0
10.0
20.0
50.0
100.0
–10to+10V
–5 to +5 V
–2.5to+2.5V
–1 to +1 V
–500 to +500 mV
–250 to +250 mV
–100 to +100 mV
–50 to +50 mV
4.88 mV
2.44 mV
1.22 mV
488.28 µV
244.14 µV
122.07 µV
48.83 µV
24.41 µV
1Thevalue of 1 LSB of the 12-bit ADC; that is, the voltage increment correspon ding to a
changeof one count in the ADC 12-bit count.
Note:Refer to Appendix A, Specifications, for absolute maximum ratings.