Hi, Klaus.
To begin with, thank you for your sincere advice.
I think it is necessary to explain the application that uses this integrator.
In this application, the integrator's absolute output is used and the repeat deviation(difference) of the output is one of the important performance.
For example, if the difference between the 1st mear.out and the 2nd mear.out is large (about 20mV or more), an error will occur.
Of course, by increasing the number of repetitions, the noise is reduced a lot, but it is difficult to realize due to the time constraints of the application.