Temperature compensated offset cancellation for high-speed amplifiers
US9780736B1 · kind B1 · utility
1Cited by
14References
14Claims
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Key dates
| Filing date | Mar 30, 2016 |
| Grant date | Oct 3, 2017 |
| Priority date | — |
| Expiry date | Mar 30, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/45604
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An apparatus, system, and method are disclosed for compensating input offset of an amplifier having first and second amplifier output nodes. The method comprises generating a proportional-to-absolute temperature (PTAT) current, generating a complementary-to-absolute temperature (CTAT) current, and selecting, based on the input offset, one of the first and second amplifier output nodes into which a compensation current is to be coupled. The compensation current is based on a selected one of the PTAT current and CTAT current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.