I'm trying to make an ECG with the scheme supplied by the INA114 datasheet. I change Rg to 25 ohms to have a gain of 1000. My problem is that sometimes it works and somtimes the output is 0. Even the noise disappears. I have realised the montage 3 times on a labdec and 1 time on a card but I have always the same problem. I have change 2 times the ina114 component and I thinks that the component is blocked for protection or something like that. I would like to know if it is possible.
I have noticed that this problem append less when the gain is lower. And this problem already append when I put a signal from a function generator.
I have noticed that this problem append less when the gain is lower. And this problem already append when I put a signal from a function generator.