Analog Devices EVAL-ADAQ4001FMCZ User Manual page 15

User Guide
ACE SOFTWARE OPERATION
CAPTURE
The CAPTURE pane contains the capture settings. These settings
reflect onto the registers automatically before data capture.
The Throughput(ksps) field in the Capture Settings section al-
lows the user to set the throughput rate of the µModule. The default
maximum throughput rate is 1754 kSPS. The 2 MSPS throughput
rate can only be set when the µModule is in Turbo Mode with a
minimum SCK rate of 75 MHz. Refer to the
and ADAQ4003 data sheet to determine the required SCK clock
frequency for the selected 3-wire or 4-wire mode.
The No. of samples pulldown menu in the Capture Settings sec-
tion allows the user to select the number of samples per capture.
Select the Turbo Mode check box in the Register Control section
to enable a 2 MSPS throughput rate for the µModule.
Select the Span Compression check box in the Register Control
section to reduce the input range by 10% from the top and bottom
of the range while still accessing the available µModule codes.
Select the Enable Status Bits check box in the Register Control
section to read the status registers after every after conversion.
Select the Use Custom Reference check box in the Reference
section if the 5.0 V on-board reference is not used. Set the corre-
sponding reference value in the Reference Voltage field.
When enabled, the Oversampling Ratio pulldown menu in the
Software Oversampling section can be set between 2 and 256
and provide improved signal-to-noise ratio (SNR) performance.
Refer to the ADAQ4001 data sheet and ADAQ4003 data sheet
to determine the maximum oversampling ratio for the selected
oversampling mode.
analog.com
Figure 22. FFT Tab
ADAQ4001 data sheet
Click Run Once to start a data capture of the samples at the
sample rate specified in the No. of samples pulldown menu. These
samples are stored on the FPGA device and are only transferred to
the PC when the sample frame is complete.
Click Run Continuously to start a data capture that gathers sam-
ples continuously with one batch of data at a time. This operation
runs the Run Once operation continuously.
ANALYSIS SETTINGS
The General Settings section allows the user to set up the prefer-
red configuration of the FFT analysis, including how many tones are
analyzed. The fundamental is set manually.
The Windowing section allows the user to select the Window type
used in the FFT analysis, set the Number of Harmonics, and set
the number of Fundamental Bins that must be included.
The Single Tone Analysis section allows the user to select the
fundamental frequency included in the FFT analysis.
The INL Settings section allows the user to set the Averaging
Iterations and Truncation settings during the INL measurement.
The DNL Settings section allows the user to set the Averaging
Iterations and Truncation settings during the DNL measurement.
RESULTS
Click Export to export the captured data. The waveform, histogram,
and FFT data is stored in .xml files along with the values of the
parameters at capture.
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