High linearity large bandwidth, switch insensitive, programmable gain attenuator
US6680640B1 · kind B1 · utility
15Cited by
15References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 13, 2000 |
| Grant date | Jan 20, 2004 |
| Priority date | — |
| Expiry date | Nov 13, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03G3/3036
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An apparatus for providing a programmable gain attenuator (PGA) while minimizing the influence of semiconductor switches on the signal being attenuated. An example apparatus comprises a impedance ladder with taps forming the junctions between impedances the PGA is then programmed by grounding the taps through terminating resistors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.