Hi ,
I want make a design of termocouple sensor interface by WEBENCH SENSOR DESIGNER. When got the SCH, there was a level shift circuit in there. I don't know what is the Vr2 supply in the level shift circuit. Is there someone could help me.
Thanks!
Dison
Hello Dison,
The eval board "Users Guide" mentions the level shift amplifier in section 4.2.3 (page 4).
http://www.ti.com/general/docs/lit/getliterature.tsp?baseLiteratureNumber=snau069&fileType=pdf
From what I can see, the Vr2 should be the same as the A/D reference voltage (Vref).
Regards,
Paul Grohe
Integrated Signal Chain Applications, SVA
Hi Paul,
Thank you very much.
B Rs,