Offset trimming for differential amplifier
US10141900B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 26, 2017 |
| Grant date | Nov 27, 2018 |
| Priority date | — |
| Expiry date | May 7, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/45538
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Apparatuses, systems, and methods are disclosed for offset trimming for differential amplifiers. An apparatus includes a differential amplifier. A differential amplifier includes a non-inverting input, an inverting input, and an output coupled to the inverting input via a voltage divider. A first variable current source is coupled to a non-inverting input, so that increasing a current from the first variable current source increases a voltage at the non-inverting input. A second variable current source is coupled to an inverting input, and to an output via a voltage divider, so that increasing a current from the second variable current source decreases a voltage at the output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.