Output Resolution; Output Clock (Continuous Mode Only) - Data Translation DT9850 Series User Manual

Chapter 5
The current output value then depends on the code that you write. For example, writing a
code of 0000 to the output corresponds to 0 mA; writing a code of FFFF to the output
corresponds to 20 mA.

Output Resolution

All DT9850 Series modules support an analog output resolution of 16 bits. The resolution
cannot be programmed in software.

Output Clock (Continuous Mode Only)

When in continuous output mode, described on
channels simultaneously with continuous values using the internal clock on the module.
Using software, specify the clock source for the analog output subsystem as internal and
specify the frequency at which to update the analog output channels.
The output frequency of the module ranges between 61 Hz and 8 kHz.
The per channel output frequency is determined by dividing the frequency of the module by
the number of enabled channels. For example, to update analog output channels at the
maximum frequency of the module, divide 8 kHz by the number of enabled channels.
lists the per channel output frequency that is supported at the maximum frequency of the
module, based on the number of enabled channels.
Table 6: Per Channel Sampling Frequency at the Maximum Clock Frequency of the Module
54
Number of Enabled
a
Channels
1
2
3
4
5
6
7
8
a. You enable an analog output channel by specifying
it in the output channel list, described on
page 57, you can update the analog output
Maximum Sampling
Frequency
8000 Hz
4000 Hz
2666.666 Hz
2000 Hz
1600 Hz
1333.333 Hz
1142.857 Hz
1000 Hz
page 57.
Table 6