Wheatstone bridge whit RTD

grataloup denis

Other Parts Discussed in Thread: INA114, INA333, INA126

Hello,

I would like to make a Wheatstone bridge circuit for one PT100 sensor (2 wires) with power supply 5V.

I don't know use witch circuit in my schematic (attached)

INA114

INA333

INA126

a other?

Can you help me in my choice?

Regards

over 11 years ago

0 Tim Claycomb over 11 years ago

TI__Genius 15410 points

Hi Grataloup,

The INA333 will not work for your circuit. The INA333 can only have a supply voltage of up to 5.5V (+/-2.75) and your circuit has 10V (+/-5V).

I recommend using the INA126 because there will be a larger output swing than the INA114 with the common mode voltage you are using.

Hope this helps!

-Tim Claycomb

0 grataloup denis over 11 years ago in reply to Tim Claycomb

Prodigy 20 points

Thank you for your reply

0 Daniel P over 11 years ago in reply to grataloup denis

Prodigy 10 points

Thanks for thread too :)

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Wheatstone bridge whit RTD