Apparatus for offset trimming and associated methods
US9503113B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 6, 2015 |
| Grant date | Nov 22, 2016 |
| Priority date | — |
| Expiry date | Jun 6, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/808
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Apparatus and associated methods are disclosed for gain and offset trimming. In one exemplary embodiment, an apparatus includes a first circuit that includes a first transconductance stage to generate a first current. The first circuit has an output offset. The apparatus further includes an offset trim circuit, which includes a second circuit to provide an output voltage selectable from a plurality of voltage values, and a second transconductance stage to generate a second current in response to the output voltage of the second circuit. The output offset of the first circuit is trimmed by adding the second current to the first current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.