Analog-to-digital converter with switched integrator
US6836228B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 20, 2002 |
| Grant date | Dec 28, 2004 |
| Priority date | — |
| Expiry date | Jan 13, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M3/454
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Methods and apparatus for converting analog signals to digital signals using a switched integrator. A method includes receiving the analog signal at a summing junction, receiving a clock signal transitioning between a first level and a second level, connecting an output of the summing junction to an integrator when the clock signal is at the first level, and disconnecting the output of the summing junction from the integrator when the clock signal is at the second level. An output signal is provided, and is determined by the polarity of an output of the integrator when the clock signal transitions from the first level to the second level. The output signal is delayed, and received with a digital-to-analog converter; which provides an output to the summing junction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.