Precision differential level shifter
US7696786B2 · kind B2 · utility
3Cited by
6References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 6, 2006 |
| Grant date | Apr 13, 2010 |
| Priority date | — |
| Expiry date | Mar 6, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K19/018528
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A differential level shifter employs a variable current mirror to maintain a reference voltage at one output while the other output follows a differential input. Resistor networks allow postproduction trimming of load resistors and the current mirror, resulting in a precise and accurate output of the differential signal. An active cascode circuit enhances current mirror balance and high frequency operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.