Part Number:LMP2011
Hello,
I want to implement the circuit shown in the attached application note (wonderfully explained, by the way), to measure a 4 wire RTD.
I have two questions:
1.- Is C1 capacitor value of 1F correct? It seems too big, and LMP2011 datasheet informs that no external capacitor are required.
2.- Amplifier A3 (LMP2011) has the pin 3 labeled in the negative input, while in the other three amplifiers, the pin 3 is the positive. Are the signs wrong? Should lead W3 be connected to pin 4, negative input of A3?
Thank you very much for your attention,
Álvaro
http://www.ti.com/lit/wp/snoa838/snoa838.pdf
