Analog switching circuit, associated control circuit and method
US8896363B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 7, 2013 |
| Grant date | Nov 25, 2014 |
| Priority date | — |
| Expiry date | May 7, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2217/0054
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The present invention discloses an analog switching circuit having a first terminal receiving an input signal, a second terminal providing an output signal and a control terminal receiving a switching control signal. The analog switching circuit has a first logic circuit providing a first control signal and a second control signal based on the switching control signal; an NMOS and a PMOS coupled between the first terminal and the second terminal, and controlled by the first control signal and the second control signal respectively; a first control circuit controls the backgate voltage of the NMOS based on the input signal and the switching control signal; and a second control circuit controls the backgate voltage of the PMOS based on the input signal and the switching control signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.