Amplifier input switch configuration with improved PSRR
US8058926B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jan 19, 2007 |
| Grant date | Nov 15, 2011 |
| Priority date | — |
| Expiry date | Jun 14, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/45534
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A switch including a first transistor including a first main terminal connected to a first switch node, a second main terminal connected to a second switch node and a control terminal, the second switch node being connected to a first clean voltage supply, and first control circuitry connected to the control terminal of the first transistor, including a first node connected to the first clean voltage supply, a second node connected to a second voltage level, and a control input node for receiving a first input control signal variable between a supply voltage level and a third voltage level, the first control means arranged to selectively connect the control terminal of the first transistor to one of the first node and the second node based on the first input control signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.