Chapter 3
Hardware Overview
©
National Instruments Corporation
3-11
PCI-MIO E Series User Manual
Analog Output
♦
PCI-MIO-16E-1 and PCI-MIO-16E-4
These PCI-MIO E Series boards supply two channels of analog output
voltage at the I/O connector. The reference and range for the analog
output circuitry is software selectable. The reference can be either
internal or external, whereas the range can be either bipolar or unipolar.
♦
PCI-MIO-16XE-10
The PCI-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).
♦
PCI-MIO-16XE-50
The PCI-MIO-16XE-50 supplies two channels of analog output voltage
at the I/O connector. The range is fixed at bipolar
±
10 V.
Analog Output Reference Selection
♦
PCI-MIO-16E-1 and PCI-MIO-16E-4
You can connect each D/A converter (DAC) to these PCI-MIO E Series
boards’ 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 within
±
11 V. You do not
need to configure both channels for the same mode.
Analog Output Polarity Selection
♦
PCI-MIO-16E-1 and PCI-MIO-16E-4
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 within
±
11 V. You do not need to
configure both channels for the same range.
