| I think there would be a few things for a newb to consider for this sort of thing.
One is op amp selection. Get one with good DC performance. Don't go for high speed etc.
Also the power supply is key. If you build your inverter into the case of another device, you may be able to tap into an existing bipolar supply. Depending on the op amp, one may need a power supply range of ~0.5 volt greater than the signal range.
There are other things one can do such as input protection, or general circuit protection.
It's not really a big deal, but can be a bit more involved than it first seems. If working inside another device, always try to be aware of what you are doing. It's no good blowing a synth for the sake of saving $50 on a used converter. If one has friends experienced in electronics, it may be a good time to start shouting for beers. |