Transconductance current source
US10218322B2 · kind B2 · utility
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5Claims
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Key dates
| Filing date | Sep 13, 2016 |
| Grant date | Feb 26, 2019 |
| Priority date | — |
| Expiry date | Sep 13, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/5031
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A transconductance circuit has an input terminal (VIN) and an output terminal (Out), a first current source (4) having a gate connected to said input terminal (VIN); and a second current source (5), in parallel with said first current source, and having a higher transconductance and a wider dynamic range than the first current source. The current sources are configured so that at a low input voltage only the first current source (4) is on. A voltage drop circuit provides a lower bias voltage for the second current source than for the first current source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.