I have acquired some mcp-6002 op-amps in a SOIC package instead of the DIP I normally use. I have solder these to a SOIC to DIP "converter" so to fit on the breadboard. If I connect them as I do with the DIP (as simple buffers for testing) they don't seem to work, I tested 4 of these and all of them behave similarly, the upper part of the wave is non-existent and I get a small part from the bottom of the signal. Now I tried to put a voltage divider with half-the supply (because they are single supply) feeding the inverting input and the wave appears but the upper part of the signal is kind of low-pass filtered. So the question is, have I damaged these during soldering to the convertors or they behave differently?
correction: "applied"
Best Answer
Unfortunately this won't be the first time of ICs marked X not behaving as component X should do, having come from Ebay / AliExpress etc.
Since you have some known-good DIP versions of this device, and (excluding gross soldering mistakes) the SOIC version of this device should behave the same, I would be concerned that you don't have genuine, working ICs of the marked part number. We had another example of this situation with EEPROMs sold through AliExpress, in a question a few days ago. Sorry...