Hi, all,

  The picture shows a simple opamp-based integrator.

  Here it is required that wt >> 1/R1C1, is wt here referring to opamp with the loading effect of R1C1?

  Or when I design opamp, I want its wt >> 1/R1C1, should I just put a simple CL (which may be gate capacitance of its later blocks), or CL//(C1+R1)? or else?

  Thanks a lot!

Feng