UG-223 Datasheet, PDF (7/20 Pages) Analog Devices – This user guide describes the EVAL-AD7193EBZ evaluation

Evaluation Board User Guide
ADC SETUP
The ADC Setup window gives the user access to the AD7193
registers. The user can write to the registers and read from the
registers. This window operates even when an AD7193 evaluation
board is not connected to the software. It operates as an AD7193
configuration tool.
ADC Reset
The ADC is reset to its default condition using this button.
ADC Read
Click this button to read the values of the registers on the
AD7193. The ADC Setup window displays the hexadecimal
values returned from the AD7193. The other sections of the
ADC Setup panes are also updated to reflect the AD7193
configuration.
ADC Write
The information displayed in the Registers HEX values panes
is written to the AD7193.
Analog Inputs
Select the analog input channels using the Channel Selection
buttons. The gain, polarity, and chopping can also be selected.
The analog inputs can be buffered or unbuffered using the
Buffer button. Finally, the Diagnostics button enables/disables
the burnout currents.
Digital Filter
The Output Data Rate (Hz), Sinc Notch (Hz), the order of
the sinc filter, Averaging, Zero Latency, and enabling/disabling
the 60Hz Rejection are programmed using these buttons. The
user can enter the frequency of the sinc notch and the software
calculates the value written to the FS[9:0] bits of the mode register.
Alternatively, the user can enter the FS[9:0] value in decimal
and the software calculates the sinc notch. When averaging is
used, the first notch caused by the averaging is shown in the
Avg Notch (Hz) text box.
The value written to the AD7193 is displayed in the Registers
HEX values pane.
UG-223
Voltage Reference
The reference source and reference value are programmed in this
section. The user can select REFIN1 or REFIN2 (Ref Selection),
enable/disable the reference detect function (Ref Detect), and
set the voltage of the reference in the V text box.
When the reference setup is changed, the changes needed for
the configuration register are shown in the Registers HEX
values section of the ADC Setup pane.
Clock Configuration
The clock used by the AD7193 is selected in this pane. When an
external master clock is selected, the clock frequency must be
entered in the MHz text box.
Digital Outputs
The four digital outputs (P0, P1, P2, and P3) are programmed
and enabled/disabled in this pane.
Mode of Operation
This pane allows the user to select continuous conversion,
single cycle conversion, calibration, and so on.
Output Data Format
This pane allows the user to select the output format of the data
conversions and to enable the parity. When several analog
inputs are enabled, the Data + Status feature should be enabled.
Registers HEX values
This window displays the values to be written to the AD7193
registers. When features such as the analog input channel, gain,
and mode of operation are changed, the values in the Registers
HEX pane are updated automatically. You can write directly to
the Registers HEX pane, altering the contents of any register.
When the values in this section are altered, the other sections of
the ADC Setup window are updated to reflect the changes.
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