I've been trying to setup this op amp for the past couple of hours, and I can't seem to do it successfully. I have a single supply, so I created a voltage divider with resistors to get +ve and -ve. I made the connections based on the data sheet by Texas Instruments. After that, I tried adjusting the offset null, but no luck.

Then I said okay, I'll try my circuit in LTSpice. The LTSpice model perfectly matches the inverting amplifier circuit. I re-checked my circuit and matched the model. Still the output voltage is off (~0.15V). I also tried other op amps and they give me approximately the same results. What am I doing wrong?