Wide common mode differential input amplifier and method
US6788142B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 20, 2002 |
| Grant date | Sep 7, 2004 |
| Priority date | — |
| Expiry date | Jun 29, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F3/45237
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A wide input range amplifier includes a first and second stage. The first stage has first and second inputs, first and second outputs, and first, second and third voltage sources. The first stage accepts input signals having a first common mode voltage range and outputs a first output signal having a second common mode voltage range and being amplified a first amount. The second stage has first and second inputs connected to the first and second outputs of the first stage, respectively. The second stage accepts input signals having a common mode voltage in the second range and outputs a second output signal having a third common mode voltage range and being amplified a second amount.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.