Difference amplifier having extended common mode range
US4037170A · kind A · utility
14Cited by
1References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 5, 1976 |
| Grant date | Jul 19, 1977 |
| Priority date | — |
| Expiry date | Apr 5, 1996 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F3/45479
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A difference amplifier, the construction of which includes operational amplifier, has an extended amplitude range of common mode signal. The input of the circuit which is applied to the inversion input of the operating amplifier is applied to the latter through an attenuation network. An adjustment of the other resistor values in the circuit is made to appropriately retain the desirable characteristics of keeping common mode rejection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.