High-speed level-shifting circuit
US7521964B1 · kind B1 · utility
1Cited by
9References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 26, 2007 |
| Grant date | Apr 21, 2009 |
| Priority date | — |
| Expiry date | Mar 26, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K19/01707
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
In level-shifting circuitry for shifting low-voltage-domain signals to a high-voltage domain, one of two output transistors is driven with one of the low-voltage-domain signals, thereby reducing loading on the output and increasing output speed and bandwidth. The circuitry can be mirrored for differential operation. When included in a serial interface of a programmable logic device, the circuitry can be programmably selectable between single-ended and differential operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.