Pipelined analog-to-digital converters with gain-matching structures
US6686864B1 · kind B1 · utility
10Cited by
10References
27Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 28, 2002 |
| Grant date | Feb 3, 2004 |
| Priority date | — |
| Expiry date | Aug 28, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/167
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Pipelined ADC systems are provided with gain-matching structures that substantially eliminate gain errors between preceding and succeeding converter stages. These structures include reference signal-conditioning elements which mimic at least one of main signal-conditioning elements in the succeeding converter stages. The reference signal-conditioning elements control reference signals which maintain a match between the full-scale range of a digital-to-analog converter (DAC) in a succeeding stage and the “gained-up” step size of a DAC in a preceding stage. This match substantially eliminates the gain errors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.