Why can a low-pass filter also become an integrator? The principle of hardware and software is the same. If you are careless, something big will happen
Design and Analysis of Integrator-Based Log-Domain Filter Circuits (The Springer International Series in Engineering and Computer Science, 534): Roberts, Gordon W., Leung, Vincent W.: 9781475782851: Amazon.com: Books
Comparators, Integrator, Differentiator, Filter Operational Amplifiers Circuit Board to be Used with EB-3000: Amazon.com: Industrial & Scientific