Variable gain amplifier with reduced power consumption
US8183920B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2010 |
| Grant date | May 22, 2012 |
| Priority date | — |
| Expiry date | Jun 30, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/45418
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A variable gain amplifier includes a first common mode (CM) node configured to receive a first differential signal of a pair of differential signals. A first regulator couples to the first CM node, the first regulator being configured to generate a first CM offset. A second CM node is configured to receive a second differential signal of the pair of differential signals. A second regulator couples to the second CM node, the second regulator being configured to generate a second CM offset. In one embodiment, the first CM offset and the second CM offset together comprise a net CM offset, the net CM offset being configured to replace a current source net offset.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.