Correction method and correction circuit for sigma-delta modulator

[0016]The following description is written by referring to terms of this technical field. If any term is defined in this specification, such term should be explained accordingly. In addition, the connection between objects or events in the below-described embodiments can be direct or indirect provided that these embodiments are practicable under such connection. Said “indirect” means that an intermediate object or a physical space exists between the objects, or an intermediate event or a time interval exists between the events.

[0017]The disclosure herein includes correction methods and correction circuits for correcting sigma-delta modulators (SDMs) to make SDMs less susceptible to or free from negative influences of manufacturing process, voltage and temperature (PVT). On account of that some or all elements of the correction circuits for correcting SDMs could be known, the detail of such elements is omitted provided that such detail has little to do with the features of this disclosu