Overview
The AD5259BRMZ50-R7, produced by Analog Devices Inc., is a nonvolatile, I2C-compatible 256-position digital potentiometer. This device is designed to provide a compact solution for adjustment applications, offering enhanced resolution and solid-state reliability compared to mechanical potentiometers or variable resistors. It is available in both LFCSP-10 (3 mm x 3 mm) and MSOP-10 (3 mm x 4.9 mm) packages, making it suitable for a variety of applications where space is a concern.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Positions | 256 | - |
| End-to-End Resistance | 50 kΩ | Ω |
| Resistance Tolerance | 0.1% | - |
| Package Type | LFCSP-10, MSOP-10 | - |
| Package Dimensions | LFCSP: 3 mm x 3 mm x 0.8 mm, MSOP: 3 mm x 4.9 mm x 1.1 mm | mm |
| Interface | I2C-compatible | - |
| Power Supply Range | 3 V to 5 V | V |
| Operating Temperature | −40°C to +125°C | °C |
| Data Retention | 100 years at 55°C | - |
| Power-on EEPROM Refresh Time | < 1 ms | ms |
Key Features
- Nonvolatile memory maintains wiper settings
- I2C-compatible digital interface for controlling wiper settings and reading back the wiper register and EEPROM content
- Separate VLOGIC pin for increased interface flexibility
- Address Decode Pins AD0 and AD1 allow up to four devices on the same bus
- Software write protect command for securing settings
- Wide operating temperature range of −40°C to +125°C
- Single supply operation from 3 V to 5 V
Applications
- LCD panel VCOM adjustment and brightness/contrast control
- Mechanical potentiometer replacement in new designs
- Programmable power supplies
- RF amplifier biasing
- Automotive electronics adjustment
- Gain control and offset adjustment
- Fiber to the home systems
- Electronics level settings
Q & A
- What is the AD5259BRMZ50-R7 used for? The AD5259BRMZ50-R7 is a digital potentiometer used for various adjustment applications, replacing mechanical potentiometers with enhanced resolution and reliability.
- What are the package options for the AD5259BRMZ50-R7? It is available in LFCSP-10 (3 mm x 3 mm) and MSOP-10 (3 mm x 4.9 mm) packages.
- What is the end-to-end resistance of the AD5259BRMZ50-R7? The end-to-end resistance is 50 kΩ.
- What is the accuracy of the resistance tolerance? The resistance tolerance accuracy is 0.1%.
- What interface does the AD5259BRMZ50-R7 use? It uses an I2C-compatible digital interface.
- What is the operating temperature range of the AD5259BRMZ50-R7? The operating temperature range is −40°C to +125°C.
- How many devices can be connected on the same bus? Up to four devices can be connected on the same bus using Address Decode Pins AD0 and AD1.
- What is the power supply range for the AD5259BRMZ50-R7? The power supply range is from 3 V to 5 V.
- How long does the power-on EEPROM refresh take? The power-on EEPROM refresh time is less than 1 ms.
- What is the typical data retention time at 55°C? The typical data retention time at 55°C is 100 years.
