Patent ID: 11916575
Assignee: KNOWLES ELECTRONICS, LLC
Field: Basic communication processes (Electrical engineering)
Classification: CPC H  B | IPC B  H

Claim 11:
12. An integrated circuit configured to be coupled to a transducer, the integrated circuit comprising:
a multi-bit delta-sigma analog-to-digital converter (ADC) having a forward path input coupled to the transducer and configured to output a digital signal based on an electrical signal, the ADC comprising a digital-to-analog converter (DAC) comprising a plurality of DAC elements in a feedback path of the ADC; and
a dynamic element matching (DELM) entity coupled between the output of the ADC and the DAC, the DELM entity configured to select a subset of DAC elements for each sample period using data weighted averaging (DWA) modified to include a randomized shift of a selected subset of DAC elements from one sample period to the next,
wherein the selected subset of DAC elements contribute to an analog feedback signal that is combined with the electrical signal prior to input to the forward path of the ADC during each sample period.