Internal Temperature Sensor; Eight-Channel Read Of Internal Temperature Data - Texas Instruments ADS131E08EVM-PDK User Manual

Using the Software
4.5 Temperature Sensor and the Scope Display Tab
The internal temperature sensor on the ADS131E08 is shown in Figure 22.
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
Temperature ( C)
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
Figure 18 demonstrates an example of temperature sensor readings read back using the GUI.
Figure 18. Eight-Channel Read of Internal Temperature Data
18
Performance Demonstration Kit for the ADS131E08
Temperature Sensor Monitor
1x
8x
Figure 17. Internal Temperature Sensor
Equation
Temperature Readnig ( V)
=
°
490 V/ °C
Copyright © 2012–2020, Texas Instruments Incorporated
AVDD
2x
1x
AVSS
1:
145,300 V
m - m
+ 25 C
m
Channel Control Registers
°
section.
SBAU200C – June 2012 – Revised April 2020
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