SBAU202 Datasheet, PDF (19/47 Pages) Texas Instruments – Performance Demonstration Kit for the ADS130E08

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4.5 Temperature Sensor and the Scope Display Tab
The internal temperature sensor on the ADS130E08 is shown in Figure 22.
Temperature Sensor Monitor
AVDD
1x
2x
USING THE SOFTWARE
8x
1x
AVSS
Figure 17. Internal Temperature Sensor
When the internal mux is routed to the temperature sensor input, the output voltage of the ADC may be
converted to a temperature value using Equation 1:
Temperature Readnig (mV) - 145,300 mV
Temperature (°C) =
490 mV/°C
+ 25°C
(1)
The output voltage corresponding to a given temperature can be read by running a data acquisition after
the Temperature Sensor mux option is selected, as shown in the Channel Control Registers section.
Figure 18 demonstrates an example of temperature sensor readings read back using the GUI.
SBAU202 – June 2012
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Performance Demonstration Kit for the ADS130E08
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