Programmable gain current amplifier
US7088180B2 · kind B2 · utility
3Cited by
7References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 5, 2005 |
| Grant date | Aug 8, 2006 |
| Priority date | — |
| Expiry date | Mar 20, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/45726
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A programmable gain current amplifier is provided, including a transistor pair, a plurality of differential pairs, and a control device. The transistor pair receives an input current. Each differential pairs connecting with each other in parallel is connected to the transistor pair to form a differential current mirror for amplifying the input current. The control device adjusts the output polarity of the current mirror, thereby obtaining a predetermined gain between the output of the current mirror and the input current. Therefore, amplification of the input current at a programmable gain is realized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.