Switched capacitor filter utilizing a differential input and output circuit and method
US4574250A · kind A · utility
54Cited by
4References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 13, 1981 |
| Grant date | Mar 4, 1986 |
| Priority date | — |
| Expiry date | Oct 13, 2001 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/372
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The invention is a differential amplifier, having internal common mode feedback and correction between a first stage and a second stage of the differential amplifier, which is used as a switched capacitor integrator in a switch capacitor filter in combination with an encoder and decoder which is fully differential throughout the circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.