Analog to digital converter with low power control
US7573416B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 30, 2008 |
| Grant date | Aug 11, 2009 |
| Priority date | — |
| Expiry date | Apr 30, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/12
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A circuit comprises a reference voltage generating circuit, a first switch, a second switch, and a capacitive element. The reference voltage generating circuit has an input and output terminal for providing a reference voltage. The first switch has a first terminal coupled to a first power supply voltage terminal, a second terminal coupled to the input terminal of the reference voltage generating circuit, and a control terminal for receiving a first control signal. The second switch has a first terminal coupled to the output terminal of the reference voltage generating circuit, a second terminal, and a control terminal for receiving a second control signal. The capacitive element has a first plate electrode coupled to the second terminal of the second switch, and a second plate electrode coupled to a second power supply voltage terminal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.