I am trying to amplify the voltage signal from a photodiode. The signal ranges from 0.150 V to 0.3 V. I am using an LM358N op amp. When i read the voltage straight off the photodiode i get the range of 0.150 to 0.3v.
When i connect the photodiode to the op amp the signal is half of the range and i confirm this with a mutimeter. The output of the op amp is 0.003v and does not change as the photodiode varies its voltage.
This is the amplification circuit i am using: