Delta-Sigma analog-to-digital converter and method thereof
US7450045B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 3, 2006 |
| Grant date | Nov 11, 2008 |
| Priority date | — |
| Expiry date | Jan 30, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M3/474
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A Delta-Sigma analog-to-digital converter and a method thereof are provided. According to a non-overlapping clock signal, the Delta-Sigma analog-to-digital converter performs an integration process on the difference between a plurality of input signals and the corresponding feedback signals to generate an integrated signal. Then, according to a selecting signal, the integrated signal is selectively output. Afterward, according to a latch signal, the selectively output integrated signal is quantized and latched by only one quantizer, thereby generating a digital output signal correspondingly. Accordingly, by using only one quantizer, the present invention can have the same function as the prior art which uses a plurality of quantizers, thereby decreasing the occupied chip area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.