NEW PROGRAMMABLE CHOPPING ARCHITECTURE TO REDUCE AN OFFICE FROM AN ANALOGUE

摘要

An integrated circuit may include: an amplifier coupled to receive an analogue input signal, an anti-aliasing filter (AAF),coupled with an output of the amplifier, a buffer circuit coupled with an output of the AAF, a Sigma Delta modulator configured to generate a digital data stream as a reaction to an output of the buffer, and a variety of Chopping circuits interlaced, Comprehensive a first pair of Chopping circuits, between which at least the amplifier is arranged and which is configured to remove an offset in the analogue input signal, and a second pair of Chopping circuits, between which at least the first pair of Chopping circuits is arranged. The amplifier, the AAF,the Sigma Delta modulator and the Chopping circuits can be formed with the same substrate of an integrated circuit. Appropriate procedures and systems will also be disclosed.