Chopped circuit with ac and dc ripple error feedback loops

A sensor system, comprising:

• a sensor configured to provide a sensor signal corresponding to a measured physical quantity to a main signal path;
• a first chopping correction circuit configured to chop the sensor signal at a first frequency;
• a first feedback loop connected between a first position within the main signal path and a second downstream position within the main signal path and configured to generate a first compensation signal that is provided to the first position;
• a second chopping correction circuit configured to chop the sensor signal at a second frequency;
• and
• a second feedback loop connected between a third position within the main signal path and a fourth downstream position within the main signal path and configured to generate a second compensation signal that is provided to the third position.

A method of reducing offset errors in a signal, comprising:

• providing an input signal to a main signal path comprising a first chopping correction circuit and a second chopping correction circuit;
• providing a first feedback signal from the main signal path to a first feedback loop and a second feedback signal from the main signal path to a second feedback loop;
• generating a first compensation signal, based upon the first feedback signal, which is provided back to the main signal path;
• and
• generating a second compensation signal, based upon the second feedback signal, which is provided back to the main signal path.