Level-shifting amplifier
US9374050B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 30, 2015 |
| Grant date | Jun 21, 2016 |
| Priority date | — |
| Expiry date | Feb 18, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/45082
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A differential amplifier may, when connected to a positive or negative supply voltage and to a ground voltage, provide a differential pair of outputs signals at a differential output that are an amplification of a differential pair of input signals at a differential input. A differential input stage may receive the differential pair of input signals from the differential input and may include a first transistor associated with one of the input signals and a second transistor associated with the other input signal. A differential output stage may generate the differential pair of output signals at the differential output and may include a third transistor associated with one of the output signals and a fourth transistor associated with the other output signal. The first, second, third, and fourth transistors may be all P type or all N type. The differential pair of output signals may have a common mode that is: near the ground voltage when the first, second, third, and fourth transistors are all N type and the supply voltage is positive with respect to the ground voltage; near the supply voltage when the first, second, third, and fourth transistors are all P type and the supply volt…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.