EVAL-AD7401EDZ Analog Devices Inc, EVAL-AD7401EDZ Datasheet - Page 8

• Manufacturer Part Number: EVAL-AD7401EDZ
• Description: EVALUATION BOARD I.C.
• Manufacturer: Analog Devices Inc
• Series: iCoupler®r

Specifications of EVAL-AD7401EDZ

• Number Of Adc's: 1
• Number Of Bits: 16
• Sampling Rate (per Second): 20M
• Data Interface: Serial
• Inputs Per Adc: 1 Differential
• Input Range: ±320 mV
• Power (typ) @ Conditions: 100mW @ 20MSPS
• Voltage Supply Source: Single Supply
• Operating Temperature: -40°C ~ 105°C
• Utilized Ic / Part: AD7401
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

EVAL-AD7400/AD7401
SOFTWARE OPERATION
With the hardware set up, you can now use the software to
control the EVAL-CED1Z and the EVAL-AD7400/AD7401. To
launch the software from the Analog Devices menu, click the
AD7400/AD7401 submenu, then click the AD7400/AD7401
icon. Figure 2 displays the main window that is opened. If an
error message appears, click OK and restart the application
after checking the connection between the adapter board and
the USB port on the PC. Also check that the USB device is
identified by the Device Manager as detailed in the Installing
the Software Section.
The software that controls the EVAL-CED1Z and, therefore,
the EVAL-AD7400/AD7401, has two main windows. Figure 2
shows the window that appears when the software is run. The
main function of this window is to allow you to read a pre-
determined number of samples from the evaluation board
and display them in both the time and frequency domain.
The screen can be divided into three main sections: Part
Information, Data Capture, and Linearity. The top portion
of the screen contains the menu bar, including the Part
Information tab on the left hand side of the screen and a Data
Figure 2. AD7400 Summary Window
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Capture tab in the center, which consists of four sub-tabs:
Waveform, Histogram, FFT, and Summary.
The Linearity tab is also located in the center and enables you
to generate a linearity plot for the device.
USING THE SOFTWARE
Menu Bar
The menu bar consists of the following menus: File, Edit,
Operate, Tools, Window, and Help.
Part Information Tab
The Part Information tab allows you to select the following
three configuration options:
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•
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The Part Information tab also includes a Busy status indicator
which lights up when the evaluation board is busy. There is also
an Exit button, which allows you to quit the program.
Resolution: The software automatically sets the resolution
to 16 bits for the AD7400 or AD7401.
Decimation Rate: The default decimation rate for the
sinc3 filter is 256. A variety of decimation rates can be
selected from the pull-down menu.
Data Format: The data format is set to binary by default.