Programmable dynamic element matching encoder for a digital-to-analog converter (DAC) and method of programming for a plurality of sampling intervals
US11616509B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 24, 2021 |
| Grant date | Mar 28, 2023 |
| Priority date | — |
| Expiry date | Nov 24, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/66
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A dynamic element matching (DEM) encoder is provided that converts an N-bit digital codeword into a pattern of 1-bit values. The DEM encoder includes a binary switching tree that includes plurality of switching blocks interconnected between an encoder input and a plurality of encoder outputs. The plurality of switching blocks are configured to receive a plurality of first control signals such that each switching block receives a respective first control signal and is independently programmable based on the respective first control signal into a first mode or a second mode. Each switching block includes a splitting circuit programmed into the first mode or the second mode to split a digital input into two digital outputs using either both a first splitting operation and a second splitting operation that is different from the first splitting operation or the first splitting operation over the plurality of sampling intervals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.