Transimpedance amplifier, integrated circuit and system
US8466741B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 14, 2011 |
| Grant date | Jun 18, 2013 |
| Priority date | — |
| Expiry date | Feb 14, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/7206
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An integrated circuit according to one embodiment includes a first transimpedance amplifier and a second transimpedance amplifier. In the integrated circuit, one of the first transimpedance amplifier and the second transimpedance amplifier is set into an enabled state and the other is set into a disabled state. The first transimpedance amplifier and the second transimpedance amplifier share an input transistor. The first transimpedance amplifier has a first resistor provided between a feedback node thereof and an input node connected to the input transistor. The second transimpedance amplifier has a second resistor provided between a feedback node thereof and the first resistor. A feedback resistor of the second transimpedance amplifier is configured with a series connection of the first resistor and the second resistor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.