OPA2188: Phase Compensation Capacitor

Hi Masaki,

We do not typically provide detailed design information on internal device parameters. The internal miller capacitance affects datasheet specifications such as slew rate and gain bandwidth. As these parameters are already available in the OPA2188 datasheet, you do not need to know the exact capacitance in order to design the OPA2188 into your circuit. If you have specific questions about how the gain bandwidth or slew rate parameters affect your application circuit, we will be happy to support.

Regards,

Zach