I am trying to amplify a simple 120mVPP sine wave (4K Hz) to a 5VPP signal being made by an AD9850 being controlled by a raspberry pi. We started off using a 741 but realized after asking you guys that 741's are garbage and attributed the output being clipped at ~2.8VPP to it being a 741 (We had the supply at +-15V). We then moved on to try using some more recommended OPAMPS such as a TL072CP and a OPA2227P and ran into the same exact "clipping" issue all being run at their recommended max voltage supply +-15 (We were able to get ~3VPP with these but no where near what we expect to see out of the OPAMP). At this point I am assuming it may not even be a clipping issue (despite it looking like clipping). I was wondering if anyone had any insight into what may be causing what looks like clipping at 12 volts lower than the rail on multiple different opamps?
We want to run the amplifier off of 5V or 10V preferably which should be fine if the OPAMP is rail to rail but if this is not possible with an OPAMP realistically then we read that using an instrumentation amplifier may be a better path too if anyone has any input on that?