Analog Devices EVAL-AD4858FMCZ User Manual page 10

User Guide
ACE SOFTWARE OPERATION
Figure 16. Waveform Tab
The Waveform graph shows each successive sample of the
AD4858 output. The user can zoom in on and pan over the Wave-
form graph using the embedded waveform tool bar located above
the graph. Select the channels to display in the Display Channels
section.
Under the Display Units pull-down menu, select Codes above the
Waveform graph to select whether the Waveform graph displays in
units of Codes, Hex, or Volts. The axis controls are dynamic.
FFT tab
The FFT tab displays fast Fourier transform (FFT) information for
the last batch of samples gathered (see
When performing an FFT analysis, the RESULTS pane shows
the noise and distortion performance of the AD4858. The sig-
nal-to-noise ratio (SNR) and other noise performance measure-
ments, such as the signal-to-noise-and-distortion (SINAD), Dynam-
ic Range, noise density (Noise/Hz), and peak harmonic or spuri-
ous noise (SFDR), are shown in the Results section. The total
harmonic disturbance (THD) measurements, as well as the major
harmonics contributing to the THD performance, are shown as well.
Figure 17. FFT Analysis of a 200 Hz Sine Wave at 1 MSPS
analog.com
Figure 17).
Histogram Tab
The Histogram tab contains the histogram graph and the RE-
SULTS pane, as shown in Figure
The RESULTS pane displays the information related to the DC
performance.
The Histogram graph displays the number of hits per code within
the sampled data. Use this graph for DC analysis as it indicates the
noise performance of the device.
Figure 18. Histogram Tab
EVAL-AD4858
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