UG-478 Datasheet, PDF (18/40 Pages) Analog Devices – Evaluation Board for the AD7176-2—24-Bit, 250 kSPS Sigma-Delta ADC with 20 μs Settling

UG-478
Evaluation Board User Guide
Figure 22. Example of the Main Window After Running a Noise Test
Reading Samples from the ADC
The evaluation board is set up to use the external 5 V on-board
reference (ADR445). To read samples from the ADC,
1. The value in the Vref box is set to 5.0000 V by default to
use the external 5 V on-board reference (ADR445). If a
different reference is used, such as the 2.5 V internal
reference, set the value in the Vref box accordingly. (The
analysis results are based on the value set in this box.)
2. Select the number of samples to analyze in the Samples
box. (Note that when performing a continuous capture,
this number is limited to 65,536 samples.)
3. When Sampling is set to Capture, a batch of samples is
read when Start Sampling is clicked, with the batch size
being set by the value in the Samples box. When Sampling
is set to Continuous, the software performs a continuous
capture from the ADC when Start Sampling is clicked.
4. Click Stop to stop streaming data.
5. Use the navigation tools within each graph to control the
cursor, zooming, and panning (see Figure 20).
6. If desired, save the current captured data for later analysis
(see Figure 24 and the Save File section).
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