Analog Devices Inc. AD5161 SPI/I2C Selectable Digital Potentiometers
Analog Devices AD5161 SPI/I²C selectable digital potentiometers offer a compact 3mm × 4.9mm packaged solution for 256-position adjustment applications. The devices provide the same electronic adjustment function as mechanical potentiometers or variable resistors with enhanced resolution, solid-state reliability, and superior low-temperature coefficient performance. Operating from a 2.7V to 5.5V power supply and consuming less than 5μA, the AD5161 SPI/I²C selectable digital potentiometers are well-suited portable battery-operated applications.
Features
- 256-position
- End-to-end resistance 5kΩ, 10kΩ, 50kΩ, 100kΩ
- Compact MSOP-10 (3mm × 4.9mm) package
- Pin selectable SPI/I²C compatible interface
- Extra package address decode pin AD0
- Full read/write of wiper register
- Power-on preset to midscale
- Single supply 2.7V to 5.5V
- Low-temperature coefficient of 45 ppm/°C
- Low power, IDD = 8μA
- Wide operating temperature −40°C to +125°C
- SDO output allows multiple device daisy-chaining
- Evaluation board available
Applications
- Mechanical potentiometer replacement in new designs
- Transducer adjustment of pressure, temperature, position, chemical, and optical sensors
- RF amplifier biasing
- Gain control and offset adjustment
Functional Block Diagram
Publicado: 2015-04-30
| Actualizado: 2022-03-11