Analog switch circuit
US6577263B2 · kind B2 · utility
Assignees
Inventor
Key dates
| Filing date | Oct 30, 2002 |
| Grant date | Jun 10, 2003 |
| Priority date | — |
| Expiry date | Oct 30, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/46
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An analog switch and an analog multipleplexer are realized by which electron charges which have been stored in a stray capacitance provided on the output side thereof before a switch is conducted do not give an adverse influence to a level of such an analog input voltage which is subsequently entered after the switch has been switched. An analog switch circuit is arranged by insulating gate type transistors and a voltage follower which is parallel-connected to these insulating type transistors. When the analog switch circuit is turned ON, the voltage follower is firstly brought into an active state, and thereafter, these insulating gate type transistors are brought into conductive conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.