Low temperature coefficient reference current generator
US6563295B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 18, 2001 |
| Grant date | May 13, 2003 |
| Priority date | — |
| Expiry date | Dec 24, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F3/245
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A low temperature coefficient reference current generator has a bandgap reference voltage generator for providing a low temperature coefficient bandgap reference voltage and a positive temperature coefficient current. The low temperature coefficient reference current generator utilizes the low temperature coefficient bandgap reference voltage to drive a positive temperature coefficient resistor disposed in an IC, so as to produce a negative temperature coefficient current. The positive temperature coefficient current and the negative temperature coefficient current are adjusted and combined to produce a low temperature coefficient reference current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.