Texas Instruments ADS1263EVM-PDK User Manual page 9

www.ti.com
As stated earlier in this section, thermistors are not self-powered and require a bias source to operate. The
ADS1263EVM includes two methods to bias a thermistor using the 2.5-V reference output of the ADS1263. The
first option requires populating the 0-Ω resistor (R36) in
external jumper wire, as shown in
used to bias the resistor is selected as the reference source for the ADC measurements.
Figure 3-5. Using REFOUT (input J5:2) to Bias a Thermistor
SBAU206B – APRIL 2015 – REVISED MAY 2023
Submit Document Feedback
Figure
Figure 3-5. In either case, make sure that the reference output (REFOUT)
J3
NTC
J4
External
Jumper
J5
Copyright © 2023 Texas Instruments Incorporated
3-4. The second option requires installing an
AIN0
AIN1
AIN2
AIN3
AIN4
AIN5
AIN6
AIN7
R34
AIN8
AIN9
AINCOM
REFOUT
ADS1263EVM-PDK Evaluation Module
Analog Interface
9