I'm using opa657 to amplify signal that is coming from the photodiode (), but when I connected the photodiode as the 1st schematic in the data sheet, I got a sine wave of Vpp=2Vs and a frequency = 100 MHz at the output of the amplifier even without any input on the photodiode.
and when I put an incident light the sine wave will disapear and no signal appears to the output of the amplifier.
Where does this sine wave come from and how fix this problem?