Analog multiplexer
US9520869B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 27, 2015 |
| Grant date | Dec 13, 2016 |
| Priority date | — |
| Expiry date | Aug 27, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2217/0054
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A switching circuit a multiplexer includes an NMOS switch module and a PMOS switch module connected in parallel between an input and an output. A first control module powered from a first power supply voltage operates to reduce leakage currents of the NMOS switching module when in the non-conducting state. A second control module powered from a second power supply voltage operates to reduce leakage currents of the PMOS switching module when in the non-conducting state. A voltage selection circuit is configured to deliver a voltage as the second power supply voltage equal to the greater of the first power supply voltage and the voltages present at the input and at the output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.