3 Wire RTD Signaling Circuit

Hello Pushkarani,

This thread is identical to the one you posted earlier: https://e2e.ti.com/support/sensors-group/sensors/f/sensors-forum/1125310/3-wire-rtd-signaling-circuit .  As such, it is being deleted to avoid confusion.  Just curious as to why you re-posted the same issue?

Regards,

~Leonard  

Hi,

Actually i posted in that forum..I didn' get mail for posting that.. So, I thought of it didn't sent.. So, I asked here in this forum

okay, we'll keep this thread and I will delete the previous one.

~Leonard 

Ok Fine

Hi Pushkarani T L,

I would recommend looking at TI's portfolio of precision ADCs, and I can also recommend the following Guide to RTD Measurements application report.

As an alternative, the TMP117 is an IC temperature sensor that can potentially replace an RTD. The operating temperature is not as wide, -55 to 150°C, but the TMP117 can achieve higher accuracy than a Class B RTD with less extensive circuitry. We have an application report detailing several RTD alternatives and the comparative performance: RTD Alternative Measurement Methods in Real-Time Control Applications

In the meantime, I will direct this thread to others so that you can get more detailed device recommendations.

Best regards,

Nicole