Bandgap curvature correction and post-package trim implemented therewith
US7420359B1 · kind B1 · utility
27Cited by
12References
19Claims
0Family size
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Key dates
| Filing date | Mar 17, 2006 |
| Grant date | Sep 2, 2008 |
| Priority date | — |
| Expiry date | Aug 27, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F3/30
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A bandgap voltage reference circuit having temperature curvature correction, comprises a bandgap voltage source configured to generate an output voltage, and a novel curvature correction circuit. The correction circuit is responsive to the bandgap voltage source output voltage and connected to apply a curvature correction signal to the bandgap voltage source to compensate for output voltage temperature dependency of the bandgap voltage source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.