At present, the transport of information has become more common, being easier to access it with new technologies, which is why different ways of protecting the sending or transport of it are sought. Continuous chaotic oscillators in time are a special type of non-linear circuits that behave in an aperiodic manner, this being a very useful tool for the protection of information. The objective of this project is to start the creation of a block belonging to an analogue chaotic system, in the future to be able to define all the elements that conform to it, and achieve the creation of the system completely, with analog electronics, through the use of design and code creation software, some basic tests of the operation of MOSFET were performed, to know its function within the creation of the integrator block, and to be able to define all the standards for the correct design of an internal circuit known as OTA Miller, This being our base for the creation of each of the blocks that make up the chaotic system, being the integrating block, the multiplier block and the adding block. Because the applications of the continuous chaotic oscillators in time are carried out through integrated circuits, this work focuses on the development of chaotic oscillator circuits integrated in the long-term chip, this is due to the complexity of the design in this topic , since it was found that the chaotic systems implemented in a chip, it is not so easy to develop, at least the creation of the blocks that make it up is not easy, that is why in this work only the initial design of an integrating block, finding this very useful as a basis for the different building blocks of the system. The achievement of the creation of a chaotic analog system applied to chips or integrated circuits would be a revolutionary way to protect information.