Reference voltage generators for integrated circuits
US8760216B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 19, 2010 |
| Grant date | Jun 24, 2014 |
| Priority date | — |
| Expiry date | Jul 28, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F3/20
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A reference voltage generator circuit may include at least one MOS transistor and at least one bipolar transistor coupled together to provide an electrical path from an input reference potential to an output of the generator circuit. The electrical path may extend through a gate-to-source path of the MOS transistor and further through a base-to-emitter path of the bipolar transistor. The MOS transistor may be biased by a bias current that is proportional to T2·μ(T), where T represents absolute temperature and μ(T) represents mobility of a MOS transistor in the bias current generator. Optionally, the reference voltage generator may include N MOS and M multiple bipolar transistors (N≧1, M≧1), and the output reference voltage may be N*VGS+M*VBE as compared to the input reference potential.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.