Body biasing device and operational amplifier thereof
US8674767B2 · kind B2 · utility
2Cited by
2References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 7, 2012 |
| Grant date | Mar 18, 2014 |
| Priority date | — |
| Expiry date | May 1, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/45594
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A body biasing device for an amplifier which has a P-type differential pair and outputs an output signal at an output node according to a differential input signal pair is disclosed. The body biasing device includes a detection unit coupled to the operational amplifier for detecting a detected voltage related to the differential input signals and accordingly outputting a control signal; and a selection unit coupled to the detection unit and the operational amplifier for outputting a body bias to the P-type differential pair according to the control signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.