Trans-impedance amplifier
US7944290B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 26, 2009 |
| Grant date | May 17, 2011 |
| Priority date | — |
| Expiry date | Mar 25, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/7236
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Systems and apparatus for converting an input current signal into two or more output voltage signals on an integrated circuit. In one aspect, an integrated circuit includes a first trans-impedance amplifier that includes a first cascode amplifier; and a second trans-impedance amplifier that includes a second cascode amplifier, the second cascode amplifier and the first cascode amplifier sharing an input transistive element; where the first cascode amplifier is coupled to one or more first switches that disable the first trans-impedance amplifier, the second cascode amplifier is coupled to one or more second switches that disable the second trans-impedance amplifier, and control logic coupled to the one or more first switches and the one or more second switches disables at least one of the first trans-impedance amplifier or the second trans-impedance amplifier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.