Hello TI,
I made my own PCB board and succeeded to design ADC reading device for research purpose. I know there are three ADC pins that RF430FRL152H can read but now I would like to read the internal temperature the chip by itself has. My question is:
In order to read the internal temperature using my own PCB, should I create a circuit with reference resistor and thermistor like the TI temperature patch? or, all I just need is the RF430FRL152H chip and an appropriate software without any external circuit connected to ADC pins?
I read this forum: https://e2e.ti.com/support/wireless-connectivity/other-wireless/f/667/p/561021/2054493#2054493 but did not fully understand how to read the internal temperature using the chip. Could you please kindly explain each steps how I can use the internal temperature sensor? I know how to measure the temperature by using voltage divider with external reference and NTC resistor but I believe the internal temperature reading would require less power.
Thank you very much!