A circuit for reconstructing an analog signal starting from a digital
input signal includes a digital to analog converter and a low pass-filter
connected at the output of the converter for receiving the analog format
signal and outputting a reconstructed analog signal. The low pass filter
is an active filter continuous in time and current-coupled to the output
of the digital-analog converter. The digital-analog converter is of the
current-steering type functioning at a sampling frequency greater than
the Nyquist frequency of the analog signal.