OPA2994: The best op-amp option to drive capacity load

Hi Hale,

It sounds like the capacitive load is able to be quite dynamic. The customer will notice some changes in the devices overall phase margin across these different capacitive loads as seen from Phase Margin vs Capacitive Load.

I'm not seeing any potential problems with using the OPA994. However I'd like to know:

- have they not decided whether to use a gain of 1 or a gain of -1?

- What is the frequency of the input signal.

Best Regards,

Robert Clifton 

Robert,

Want to make sure 1 question first, is OPA994 the best option to drive capacity load, 1uF~5uF?

Robert,

The frequency is 200k. And there are 2 ch, one ch gain is +1,the other one is -1. Do we have better performance devices, like higher bandwidth which can also support capacity load?