National Instruments 3.21E+04 用户手册

Chapter 3     Hardware Overview

AT-MIO/AI E Series User Manual

3-14

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 National Instruments Corporation

♦

AT-MIO-16E-1, AT-MIO-16E-2, AT-MIO-64E-3, 

AT-MIO-16E-10, AT-MIO-16DE-10

The AT E Series boards supply two channels of analog output 
voltage at the I/O connector.   You can select the reference and 
range for the analog output circuitry through software.  The 
reference can be either internal or external, whereas the range can 
be either bipolar or unipolar.

♦

AT-MIO-16XE-50

The AT-MIO-16XE-50 supplies two channels of analog output 
voltage at the I/O connector.  The range is fixed at bipolar 

±

10 V.

♦

AT-MIO-16XE-10

The AT-MIO-16XE-10 supplies two channels of analog output 
voltage at the I/O connector.  The range is software selectable 
between unipolar (0 to 10 V) and bipolar (+10 V).

♦

AT-MIO-16E-1, AT-MIO-16E-2, AT-MIO-64E-3, 

AT-MIO-16E-10, AT-MIO-16DE-10 only

You can connect each D/A converter (DAC) to the AT E Series  
board internal reference of 10 V or to the external reference signal 
connected to the external reference (EXTREF) pin on the I/O 
connector.  This signal applied to EXTREF should be between 
-10 and +10 V.  You do not need to configure both channels for the 
same mode.

♦

AT-MIO-16E-1, AT-MIO-16E-2, AT-MIO-64E-3, 

AT-MIO-16E-10, AT-MIO-16DE-10 only

You can configure each analog output channel for either unipolar 
or bipolar output.  A unipolar configuration has a range of 0 to V

ref

  

at the analog output.  A bipolar configuration has a range of -V

ref

 

to +V

ref

  at the analog output.  V

ref

  is the voltage reference used by 

the DACs in the analog output circuitry and can be either the 
+10 V onboard reference or an externally supplied reference 
between -10 and +10 V.  You do not need to configure both 
channels for the same range.