Abstract: Data acquisition system comprising a circuit for converting a high-frequency analog input signal (a) into a plurality of digital signals (D1-DN, R) for processing by a digital processing system including at least one digital processor (8) comprising a m-bits digitizer (1), a demultiplexer (2) for delivering in parallel N m-bits sample values supplied in series by said digitizer (1), and a memory (5) for storing the demultiplexed sample values, said memory (5) being accessible by said digital processing system (8). According to the invention, the circuit further comprises a real time digital processing circuit (6) for processing in real time said demultiplexed sample values, capable of supplying processed results to said digital processing system (8). The sampling frequency of said digitizer (1) is greater than the input frequency of said digital processor (8).

Abstract: The circuit for converting a high-frequency analog input signal (a) into a plurality of digital signals (D1-DN) for processing by a digital processor (8) in a data acquisition system comprises: an analog-to-digital m-bits converter (1), a memory (5) for storing the digital data (d1-dN) converted by said converter, said memory being accessible by said digital processor (8), a circuit (6) for analyzing in real time said digital data (D1-DN), capable of modifying the storage address of said digital data (D1-DN) in said memory (5) following the detection of a predefined event in said digital data (D1-DN).