amplifying a signal using AD620

lakmalkp said:

Hello,

I am having some issues amplifying the signal I am getting from my load cell. The load cell needs 12V input supply. I tried using MCP602 but it doesn't work. then I tried using AD620 still it does not work. could anyone please help me with supplying the full schematic or a drawing for the circuit which can amplify the signal using AD620AN Instrumentation Amp. seems like it is always giving me 0.69 as my output for some reason. I have read all the other posts but those did not really help. (please provide the full schematic or the drawing). I really need it ASAP as I am working on my final year project.

I would really appreciate your help.

Thank you...

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ericgibbs said:

hi lp,
If you post the circuit you have tried with the AD620 it makes it easier for us to help you.

I guess you know that the AD620 is designed to work from a dual power supply?

Also how is Vref connected on pin 5.?

E.

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lakmalkp said:

... anyways do you know why it does not work with MCP602?...

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