Transimpedance amplifiers with adjustable input range
US11277106B2 · kind B2 · utility
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10References
24Claims
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Key dates
| Filing date | Apr 23, 2020 |
| Grant date | Mar 15, 2022 |
| Priority date | — |
| Expiry date | Apr 23, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/45601
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A multi-stage transimpedance amplifier (TIA) with an adjustable input linear range is disclosed. The TIA includes a first stage, configured to convert a single-ended current signal from an optical sensor of a receiver signal chain to a single-ended voltage signal, and a second stage, configured to convert the single-ended voltage signal provided by the first stage to a differential signal. In such a TIA, the input linear range may be adjusted using a clamp that is programmable with an output offset current to keep the second stage of the TIA from overloading and to maintain a linear transfer function without compression.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.