Cascode CMOS bandgap reference
US4588941A · kind A · utility
30Cited by
9References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 11, 1985 |
| Grant date | May 13, 1986 |
| Priority date | — |
| Expiry date | Feb 11, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S323/907
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A CMOS bandgap voltage reference which is temperature stable is disclosed. The large temperature-dependent p-tub resistors of prior art arrangements are replaced with relatively small, temperature stable p+ diffusion resistors. The increase in current level needed to compensate for the decrease in resistor value is provided by a simple cascode MOS circuit located between the ratioing resistors and the VSS potential.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.