The invention relates to an intelligent autonomous and portable module, used for non-invasive measurement of low intensity biosignals from the body surface. According to the invention, the module consists of a high-pass filter () and an instrumental amplifier () having in the reference reaction loop an integrator made with an operational amplifier (), the signal from the pre-amplifier output is passed through an active band-pass filter () then it is applied by means of a switch () to an input of a differential amplifier () with programmable gain, at the other input there being applied the reference signal provided by a reference voltage generator () on the other input of the switch (), there is directly applied a signal sampled from an active measuring electrode, and the common-mode signal, obtained from the instrumental amplifier (), is applied on the negative input of an operational amplifier (), in order to obtain a DRL reaction signal at the output thereof, while, at the positive input of the operational amplifier () there is applied the reference signal provided by the reference voltage generator () which is controlled by a microcontroller of a central processing unit () the output of the amplifier () with programmable gain is applied at an input of a Sigma-Delta-type analogue-digital converter () and on the second input of the converter () there is applied the output of another amplifier () with programmable gain, whereto, at one input, the signal sampled by an auxiliary active electrode is directly applied and at the other input of the amplifier () there is applied the reference signal provided by the reference voltage generator () in order to transmit the data obtained at the output of the converter () towards the central processing unit () and in order to program the gain of the two programmable amplifiers (), a serial channel () of data transmission on two lines, the data line and the clock signal, is employed.Invenţia se referă la un modul inteligent, aut
