EVAL-AD7719-EB Datasheet, PDF (15/21 Pages) Analog Devices – Evaluation Board for the AD7719, 16&24-Bit, Dual Sigma Delta ADC

EVAL-AD7719-EB
Fig. 13. The Read Data from Dual ADC Screen
The Read Data from Dual ADC Screen
Fig. 13 shows the Read Data from Dual ADC display. This is where the user can read a number of samples from both
ADCs simultaneously. The results are stored in two arrays so that the results can be graphed or analysed later by
selecting the Aux or Main ADC Noise Analysis Buttons on the Main Menu Screen. It is possible to read and graph up
to 5000 samples at any one time. The read can be interrupted with a user key press. Note both ADCs must be enabled
for this screen to operate. The user is informed if both ADCs aren't enabled. This will also overwrite results from single
Main or Aux ADC analysis unless the data has been saved.
When the Read for Display button is selected the software will read one sample from the AD7719 and display its value
in the Current Code text box. The software will continue to read and display the samples until a key has been pressed.
It is possible to add a delay to the read cycle by entering the required number of milliseconds between reading samples.
It should be noted however that the accuracy of the time delay can be affected by other programs running under
Windows, therefore this method is not suitable where equidistant sampling is required.
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