Transimpedance amplifier
US7868701B2 · kind B2 · utility
14Cited by
2References
18Claims
0Family size
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Key dates
| Filing date | Aug 3, 2005 |
| Grant date | Jan 11, 2011 |
| Priority date | — |
| Expiry date | Oct 12, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03G1/0088
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A gain switching determination circuit (250) compares/determines a comparative input voltage (Vc) from an inter-stage buffer (230) with a first hysteresis characteristic, and outputs a gain switching signal (SEL) based on the comparison/determination result to first and second transimpedance amplifier core circuits (210, 220), thereby switching the gains of the core circuits. This obviates holding a comparison input voltage with long response time in a level holding circuit for gain switching determination, which allows instantaneous gain switching determination and instantaneous response corresponding to burst data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.