Digital potentiometer with stackable configuration
US5243535A · kind A · utility
10Cited by
6References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 30, 1990 |
| Grant date | Sep 7, 1993 |
| Priority date | — |
| Expiry date | Mar 30, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/804
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An integrated circuit containing two digital potentiometers with each potentiometer including a passive resistor string with tap points. Tap point selection is programmed through a three-wire serial port. An output multiplexing the selected tap points permits tying the two potentiometers in series to form a single potentiometer of twice the size.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.