National Semiconductor INA260, Руководство пользователя

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INA260EVM GUI Software
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22 SBOU180 – November 2016
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INA260EVM-PDK and Software Tutorial
The Averaging Mode menu allows the user to select a desired number of samples for the INA260
averaging feature. This step configures the INA260 to compute and store the average value of the
specified number of samples in the output register. The default value is 1.
4.1.3 Step 3: Set Conversion Times
Conversion time determines the sample rate of the INA260 internal ADC and can be programmed
depending on the bandwidth of the input signal. The INA260 offers independent control of the conversion
time for bus and shunt measurements. Step 3 provides drop-down menus from which suitable values can
be selected, as shown in
Figure 16 .
Figure 16. Configuring Conversion Times
4.1.4 Step 4: Configure Alert
The Alert pin allows the user to set limits on the value of the output register corresponding to the
parameter selected from the drop-down menu, as shown in
Figure 17 . If at any time the register value
violates the user-specified limit, a flag is triggered on the Alert pin. Note that, by default, the Alert pin is set
to active low. The limit value can can be specified in the
Alert Limit box.
Figure 17. Configuring the Alert Pin
In addition to the INA260EVM software alert configuration, the Alert Configuration box includes the
Conversion Ready button that allows for a special functionality on the Alert pin. When the INA260
completes the conversions for the current operation, it triggers the Alert pin and notifies the user that
another conversion can be performed. In most cases, the INA260 conversion ready flag is not visible
because of the speed of the INA260 conversion process.