Analog multiplexer
US4191856A · kind A · utility
18Cited by
2References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 28, 1978 |
| Grant date | Mar 4, 1980 |
| Priority date | — |
| Expiry date | Jul 28, 1998 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J3/047
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Disclosed is an analog multiplexer in which a plurality of emitter follower differential amplifiers formed of several pairs of bipolar transistors connected in parallel with each other are connected in common to one terminal of a power source through a current mirror load circuit, and to the other terminal of the power source via a switch circuit and a constant-current source. The switch circuit is to connect the constant-current source selectively to the common conjunction of the emitters of each pair of emitter follower differential amplifiers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.