IC for interfacing pt100 with pic microcontroller

[gojkosisa]

Hello,

I need some IC that will handle the current sourcing and amplification signal from pt100 Ohm sensor.I've found this IC from maxim https://www.maximintegrated.com/datasheet/index.mvp/id/3903 but this is only for pt200. Any recommendation would be very helpful.

Thank you.

 

[asimlink]

Hi,

Did you look at this scheme?

1. **broken link removed**
This guy is using LM358 opamp along with a LM385 reference IC, to read from PT100 sensor. You also could use this scheme.


2. Another scheme that uses ADS1247:
https://e2e.ti.com/support/other_analog/temperature_sensors/f/243/t/163754.aspx

Regards

 

[gojkosisa]

Hi,

Did you look at this scheme?

1. **broken link removed**
This guy is using LM358 opamp along with a LM385 reference IC, to read from PT100 sensor. You also could use this scheme.


2. Another scheme that uses ADS1247:
https://e2e.ti.com/support/other_analog/temperature_sensors/f/243/t/163754.aspx

Regards

Hello,

thank you for your respond. One more question, could I use 2 wire pt100 instead of 3 wire?

- - - Updated - - -

Hi,

Did you look at this scheme?

1. **broken link removed**
This guy is using LM358 opamp along with a LM385 reference IC, to read from PT100 sensor. You also could use this scheme.


2. Another scheme that uses ADS1247:
https://e2e.ti.com/support/other_analog/temperature_sensors/f/243/t/163754.aspx

Regards

Hello,

thank you for your respond. One more question, could I use 2 wire pt100 instead of 3 wire?