Overview
The AD5259BRMZ5, produced by Analog Devices Inc., is a nonvolatile, 256-position digital potentiometer. It is available in compact LFCSP-10 (3 mm x 3 mm) and MSOP-10 (3 mm x 4.9 mm) packages. This device performs the same electronic adjustment function as mechanical potentiometers or variable resistors but with enhanced resolution and solid-state reliability. The AD5259 is controlled through an I2C-compatible digital interface, allowing for precise adjustment and reading of the wiper register and EEPROM content.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| End-to-end Resistance | RAB | - | 5 kΩ, 10 kΩ, 50 kΩ, 100 kΩ | - | - | Ω |
| Resistance Tolerance | - | - | - | - | 0.1% | % |
| Power Supply Range | VDD | - | 2.7 | - | 5.5 | V |
| Logic Supply Range | VLOGIC | - | 2.7 | - | 5.5 | V |
| Operating Temperature | TA | - | -40°C | - | +125°C | °C |
| Power-on EEPROM Refresh Time | - | - | - | < 1 ms | - | ms |
| Data Retention | - | - | - | 100 years at 55°C | - | years |
Key Features
- Nonvolatile memory maintains wiper settings.
- 256-position adjustment.
- Compact LFCSP-10 (3 mm x 3 mm) and MSOP-10 (3 mm x 4.9 mm) packages.
- I2C-compatible digital interface.
- 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.
Applications
- LCD panel VCOM adjustment.
- LCD panel brightness and 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 AD5259BRMZ5 used for?
The AD5259BRMZ5 is used as a digital potentiometer, providing 256-position adjustment for various applications such as LCD panel adjustments, programmable power supplies, and mechanical potentiometer replacements.
- What are the available package types for the AD5259BRMZ5?
The AD5259BRMZ5 is available in LFCSP-10 (3 mm x 3 mm) and MSOP-10 (3 mm x 4.9 mm) packages.
- What is the operating temperature range of the AD5259BRMZ5?
The operating temperature range is from -40°C to +125°C.
- How is the AD5259BRMZ5 controlled?
The AD5259BRMZ5 is controlled through an I2C-compatible digital interface.
- What is the resistance tolerance of the AD5259BRMZ5?
The resistance tolerance is stored in EEPROM with an accuracy of 0.1%.
- Can multiple AD5259BRMZ5 devices be used on the same bus?
- What is the power-on EEPROM refresh time of the AD5259BRMZ5?
- What is the data retention time of the AD5259BRMZ5?
- Does the AD5259BRMZ5 support software write protection?
- What is the purpose of the VLOGIC pin on the AD5259BRMZ5?
LOGIC pin provides increased interface flexibility.
