Voltage level shifter
US7468615B1 · kind B1 · utility
32Cited by
4References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 28, 2007 |
| Grant date | Dec 23, 2008 |
| Priority date | — |
| Expiry date | Mar 28, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K19/00315
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A high-speed, area-efficient level shifter includes transistors having a variety of oxide thicknesses. The level shifter has a protection circuit stage, and a current mirror stage that allows the level shifter to perform over a wide voltage range at a high frequency. The level shifter maintains rise time, fall time, and duty cycle over a wide range of input and output voltage levels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.