Hey Ti,
Further questions on the IEPE interface. The use case of the gain stage, is it for amplification of small signals? Or some other purposes. As far as I can tell the attenuation gets the IEPE signal into the range you want, then the gain stage can amplify small signals. Or is ther another reason?
My current design I know that my IEPE sensor will always be +-5V, I will attenuate with the 1/8, filter and then to the opamp. The input to the LM751 will be +-0.625 V centered around 1.65 V (so safety within the 2.5 V max). My question is can I set the gain to 1 on the LM751?
Am I missing something?
Thanks,
dan