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Digital Potentiometers
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Key Features
Parametric specs for Digital Potentiometers
| Steps | 64 |
| # Potentiometers | 1 |
| Control Interface | Contact-Closure |
| Taper | Linear |
| Wiper Memory | Non-Volatile |
| REND-TO-END (kΩ) | 10 50 100 |
| Res. Tol. (%) | 20 |
| Temp. Coeff. (ppm/°C) (typ) | 750 |
| Wiper Resistance (Ω) (typ) | 400 |
| ICC @5V (µA) (max) | 25 |
| Package/Pins | PDIP/8 SOIC (N)/8 UMAX/8 |
| Budgetary Price (See Notes) | 1.83 |
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Simplified Block Diagram
Technical Docs
| Data Sheet | Dallastat | Apr 26, 2014 | |
| App Note | Controlling a Variable Voltage Power Supply Using the DS1809 (Pushbutton Control) | ||
| Tutorial | Where Is Ground? | ||
| Tutorial | Reduce the Chances of Human Error: Part 1, Power and Ground | ||
| Tutorial | How to Increase the Bandwidth of Digital Potentiometers 10x to 100x |
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .
Parameters
Parametric specs for Digital Potentiometers
| Steps | 64 |
| # Potentiometers | 1 |
| Control Interface | Contact-Closure |
| Taper | Linear |
| Wiper Memory | Non-Volatile |
| REND-TO-END (kΩ) | 10 50 100 |
| Res. Tol. (%) | 20 |
| Temp. Coeff. (ppm/°C) (typ) | 750 |
| Wiper Resistance (Ω) (typ) | 400 |
| ICC @5V (µA) (max) | 25 |
| Package/Pins | PDIP/8 SOIC (N)/8 UMAX/8 |
| Budgetary Price (See Notes) | 1.83 |
Key Features
- Single 64-position potentiometer
- Digital or pushbutton control
- Two nonvolatile wiper storage options
- Operating ranges:
- -40ºC to +85ºC
- 4.5V to 5.5V
Applications/Uses
Description
The DS1809 Dallastat is a single, 64-position digital potentiometer which provides both a simple contact closure-controlled interface and a microprocessor-controlled interface. Wiper position is maintained in the absence of power in EEPROM. Wiper setting can be stored automatically or on command.
Because it handles both mechanical pushbutton and digital inputs, the DS1809 can adapt to applications with either or both mechanical and processor-controlled interfaces. In either case, digitally controlled resistance values are more reliable and accurate than mechanical potentiometers and can be mounted with automated manufacturing processes, saving time and money.
Because it handles both mechanical pushbutton and digital inputs, the DS1809 can adapt to applications with either or both mechanical and processor-controlled interfaces. In either case, digitally controlled resistance values are more reliable and accurate than mechanical potentiometers and can be mounted with automated manufacturing processes, saving time and money.
Technical Docs
| Data Sheet | Dallastat | Apr 26, 2014 | |
| App Note | Controlling a Variable Voltage Power Supply Using the DS1809 (Pushbutton Control) | ||
| Tutorial | Where Is Ground? | ||
| Tutorial | Reduce the Chances of Human Error: Part 1, Power and Ground | ||
| Tutorial | How to Increase the Bandwidth of Digital Potentiometers 10x to 100x |
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .
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