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Analog Output Features
This section describes the following features of analog output operations:
• Output resolution, described below
• Analog output channels, described below
• Output ranges and gains, described on
• Output trigger, described on
• Output clock, described on
• Data format and transfer, described on
• Error conditions, described on
Output Resolution
The modules provide a fixed output resolution of 12 bits. Note that the resolution is fixed; it
cannot be programmed in software.
Analog Output Channels
DT9812, DT9813, and DT9814 Series modules provide two analog output channels (DACs).
The modules can output data from a single analog output channel or from both analog output
channels.
The following subsections describe how to specify the channels.
Specifying a Single Analog Output Channel
The simplest way to output data from a single analog output channel is to use single-value
analog output mode, specifying the analog output channel that you want to update; refer to
page 67
for more information about single-value operations.
You can also specify a single analog output channel using the output channel list, described in
the next section.
Specifying Analog Output Channels
You can output data continuously from one or both analog output channels using the output
channel list. If you want to output data from one analog output channel continuously, specify
either 0 (DAC0) or 1 (DAC1) in the channel output list. If you want to output data to both
analog output channels continuously, specify the output channel list in the following order: 0,
1.
Then, use software to specify the data flow mode as Continuous for the D/A subsystem; refer
to
page 66
for more information on continuous analog output operations.
page 66
page 66
page 66
page 68
page 69
Principles of Operation
65
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