Device and method for generating a low-voltage reference
US7256643B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 4, 2005 |
| Grant date | Aug 14, 2007 |
| Priority date | — |
| Expiry date | Dec 27, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F3/30
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A voltage reference generating method, source, memory device and substrate containing the same include a voltage reference generator comprised of a bandgap voltage reference circuit including a first complementary-to-absolute-temperature (CTAT) signal and a second complementary-to-absolute-temperature (CTAT) signal. The voltage reference generator further includes a differential sensing device for generating a reference signal substantially insensitive to temperature variations over an operating temperature range by differentially sensing the first and second CTAT signals. The method includes generating first and second complementary-to-absolute-temperature (CTAT) signals and generating a reference signal that is substantially insensitive to temperature variations over an operating temperature range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.