Hi,
I'm using a LMV321IDCKR as unity amplifier and have the issue the op-amp seems to not work as rail-to-rail...The power supply is 3.1V. The positive input is connected to the power. The output is 2.4 - 2.56V and it fluctuates continuously. I tried a few op-amps from the same batch and they all behave like this. i also tried a LMV321AIDBVR (different pinout) in the same schematic and the output is steady 3.1V...
What is this, a wrong batch or i'm not understanding how rail-to-rail works? Please advice!
All parts ware bought in the US from a reputable official dealer.
Thanks!