An interface device for connection between two electronic components of an electronic circuit, includes: an input terminal, an output terminal and a reference terminal, an input voltage between the reference and input terminals, an output voltage between the reference and output terminals, an input impedance, and an output voltage gain, at least one resistance connected to at least one terminal among the input and output terminals, at least one analog switch positioned between the output and reference terminals, the switch having a closed or an open state, and control elements for each switch, at least one parameter among the input impedance and the output voltage gain of the device having distinct values as a function of whether the analog switch is closed or open, each analog switch including at least one N-type field effect controllable transistor and one P-type field effect controllable transistor connected in series.