Hi !! I want to amplify the output of my hall effect current transducer ( CSLA2CD ). The output of my hall effect sensor is 15.6mVac. And I used a dual rail op - amp to amplify this small ac voltage which the gain is 101 ( as shown in the schematic below ). I tried to simulate using multisim, and it does show me the correct output. However, in practical, I can't get the correct output from op amp. I attached the photo of my hardware circuit as well. I built it exactly like the schematic. But I couldn't get the correct output as the simulation result. Is there anything wrong with my circuit? FYI, from what i measured, the output of hall sensor when the bulb is off, is around 0.5mVrms. and the output of hall sensor when the bulb is on, is around 15.6mVrms, which is very small. I should get the output with 101 gain from op amp. But it doesn't work.