ADS1220: Looking for low cost temperature measurement 0-300degc with 1degc resolution

Hi Dinu,

thanks a lot for reaching out with your request.
I don't think there is a fully integrated temperature sensor solution available on the market that can measure temperatures up to 300°C.
Using an NTC or RTD is probably what you will have to do.

The ADS1220 (24-bit) or ADS1120 (16-bit version) would be good starting points. We also have options of those ADCs with I2C or UART interface available.

We offer some great collateral for RTD measurements using our ADCs to help you with a potential design:

• A Basic Guide to RTD Measurements
• RTD Wire-Break Detection Using Precision Delta-Sigma ADCs
• Firmware library for RTD measurements (including RTD linearization algorithms):
  https://www.ti.com/tool/ADC-TEMP-SENSOR-FW

Regards,
Joachim Wuerker