Like it says on the tin. I've been working on a Class D design and for the analog section for the feedback loop, I would like to make a gain clamp. I've been looking into different parts and I found two that I like, but am unsure (hence why I'm here). I'll more than likely be composting them to give the op amps more capability as well (be it slew rate, bandwidth, etc). The op amps in question are the AD8237 from ADI, and the INA849 from TI. Both have phenomenal specs, but also have their drawbacks (hence composite). The AD8237 really isn't designed for something like audio, but in tandem with an op amp with better slew rate, it could be very interesting. It says it's stable at all gains in the spec sheet. On the other hand, the INA849 just has very good overall noise figures, but more drift. I've also been considering the INA851, but that would mean a whole different set of design challenges. But hey, for all I know there may be an even better choice out there. Thoughts?
