AD5245
PRODUCTION256 Position I2C Compatible Digital Potentiometer
- Part Models
- 8
- 1ku List Price
- Starting From $0.86
Part Details
- 256-position
- End-to-end resistance 5 kΩ, 10 kΩ, 50 kΩ, 100 kΩ
- Compact SOT-23-8 (2.9 mm × 3 mm) package
- Fast settling time: tS = 5 µs typ on power-up
- Full read/write of wiper register
- Power-on preset to midscale
- Extra package address decode pin AD0
- Computer software replaces microcontroller in factory programming applications
- Single supply: 2.7 V to 5.5 V
- Low temperature coefficient 45 ppm/°C
- Low power: IDD = 8 µA
- Wide operating temperature: –40°C to +125°C
- Evaluation board available
The AD5245 provides a compact 2.9 mm × 3 mm packaged solution for 256-position adjustment applications. These devices perform the same electronic adjustment function as mechanical potentiometers or variable resistors, with enhanced resolution, solid-state reliability, and superior low temperature coefficient performance.
The wiper settings are controllable through an I2C-compatible digital interface, which can also be used to read back the wiper register content. AD0 can be used to place up to two devices on the same bus. Command bits are available to reset the wiper position to midscale or to shut down the device into a state of zero power consumption.
Operating from a 2.7 V to 5.5 V power supply and consuming less than 8 µA allows usage in portable battery-operated applications.
Note that the terms digital potentiometer, VR, and RDAC are used interchangeably.
APPLICATIONS
- Mechanical potentiometer replacement in new designs
- LCD panel VCOM adjustment
- LCD panel brightness and contrast control
- Transducer adjustment of pressure, temperature, position, chemical, and optical sensors
- RF amplifier biasing
- Automotive electronics adjustment
- Gain control and offset adjustment
Documentation
Data Sheet 1
User Guide 1
Application Note 1
Frequently Asked Question 1
Product Selection Guide 1
Device Drivers 1
Webcast 2
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| AD5245BRJZ10-R2 | 8-Lead SOT-23 | ||
| AD5245BRJZ10-RL7 | 8-Lead SOT-23 | ||
| AD5245BRJZ100-R2 | 8-Lead SOT-23 | ||
| AD5245BRJZ100-RL7 | 8-Lead SOT-23 | ||
| AD5245BRJZ5-R2 | 8-Lead SOT-23 | ||
| AD5245BRJZ5-RL7 | 8-Lead SOT-23 | ||
| AD5245BRJZ50-R2 | 8-Lead SOT-23 | ||
| AD5245BRJZ50-RL7 | 8-Lead SOT-23 |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Feb 8, 2010 - 04_0080 Qualification of the 8" C6 and Q Wafer Fab Processes at Analog Devices, Limerick, Ireland. |
||
| AD5245BRJZ10-R2 | ||
| AD5245BRJZ10-RL7 | PRODUCTION | |
| AD5245BRJZ100-R2 | ||
| AD5245BRJZ100-RL7 | PRODUCTION | |
| AD5245BRJZ5-R2 | ||
| AD5245BRJZ5-RL7 | PRODUCTION | |
| AD5245BRJZ50-R2 | ||
| AD5245BRJZ50-RL7 | PRODUCTION | |
|
Feb 4, 2010 - 10_0009 Halogen Free Material Change for SOT_23 Products |
||
| AD5245BRJZ10-RL7 | PRODUCTION | |
| AD5245BRJZ100-RL7 | PRODUCTION | |
| AD5245BRJZ5-RL7 | PRODUCTION | |
| AD5245BRJZ50-RL7 | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Device Drivers 1
Evaluation Software 0
Can't find the software or driver you need?
Evaluation Kits
AD5245 Evaluation Board